Chrome plated bars and tubes - Sidergamma

c h r o m e p l a t e d b a r s a n d t u b e s

c h r o m e p l a t e d b a r s a n d t u b e s01

SIDERGAMMA

Our history 02Processing, quality, products, packaging 05Fully automated production processes 06Quality controlled and certified 07Our products 08

CHROME PLATED BARS

Regulatory requirements 09Main application fields 10Delivery specifications 11Supply range 12Dimensional range and tolerances 13Steel grades in use 14

CHROME PLATED TUBES AND TELESCOPIC TUBES

Supply range 16Delivery specifications 17Dimensional range and tolerances 18Steel grades in use 19

CYLINDER TUBES

Cylinder tubes 20Machined parts 22Warehouse 23Packaging, protection, certificates and markings 24

Bianco Group 25

The funded project 26How to reach us 27

CONTENTS

OUR HISTORY

1983Francesco, Ivano and Riccardo Zamberlan officially took over the management and established Zetadi s.r.l. They began the production of hard chrome plated bars in commercial lengths working for third parties.

The historic cooperation with Bianco Group began: Sicam S.p.A. (Italy) and Protubsa S.L. (Spain) were thefirst companies to become customers, joined by the remaining foreign subsidiaries of the Group after a shorttime. This strategic approach was a key factor in the internationalization of Sidergamma.

2004

Production capacity increased significantly through the installation of one new peeling machine andseveral grinding lines. Start-up of the first automated online controls.

2000

1995Sidergamma formed an exclusive partnership with Acciaierie Valbruna for the supply of hard chromeplated stainless steel bars. Even today, this partnership is still in place and is something we are very proud of.

The Zamberlan brothers established Sidergamma s.r.l. and started mass production of chrome plated barsand tubes under their own brand.

1990

Domenico Zamberlan established Cromatura Zamberlan Domenico for the supply of hard chrome plated steel bars. The sons Francesco, Ivano and Riccardo Zamberlan continuously supported their father Domenico.

1956

02c h r o m e p l a t e d b a r s a n d t u b e s

Today the total covered warehouse space is 12,000 m² on a site of 20,000 m².Sidergamma has customers in 30 different Countries.

2020 A new warehouse for finished goods of 3,600 m² was completed. The recent installation of a new peeling machine has enriched Sidergamma machinery fleet not only in terms of production capacity but also in terms of quality.

The internationalization process was consolidated thanks to the commercial promotion of the Bianco Group.

2016

2015 Sidergamma merged with the Bianco Group.

Zetadi and Sidergamma merged. In addition to simplifying internal processes, this decision strongly supported the promotion of Sidergamma on the international markets.

2013

To allow greater raw material storage, the warehouse was extended and capacity increased by a further 1,200 m².

2018

The trademark Gammaplus ® was officially registered and the production capacity was further strengthened to reach the 15,000 tons per year.

2019


2021The installation of an additional photovoltaic system allows us to significantly reduce energy needs from traditional sources by bringing our self-production to over 800 kWp of power and about 850,000 kWh per year. Increases in capacity were realised through the addition of two new grinding lines and an automatic polishing system.

2022Installation of a new continuous chrome plating line that allows Sidergamma to expand its dimensional range and bring the annual production capacity to over 17,000 tons.


OFFICES AND LOGISTICS

PRODUCTION

OUR WORK

PROCESSINGOur full range of processing includes peeling, rolling, grinding,micro fissured hard chrome plating, polishing and final packingthrough the extrusion of recyclable polypropylene on thefinished bar. The system we have in place is designed to prevent handling damages and our rollers are coated by Vulcolan.

QUALITYEach production phase is continuously monitored with high accuracy using computerized laser technology. This ensures uniformity of chromedeposition, correct surface roughness and detects any possible defects.

PRODUCTSSidergamma is equipped with high performance steel cold working systems and skilled personnel to fulfil not only the most challenging projects but also the most demanding customer requirements .Since the very first day our "Passion for Quality" has led us to become the well-known brand of Sidergamma. Thanks to the continuous acknowledgment and support of our Customers, we are proud to confirm that our Company is unquestionably amarket leader, both in cold working of steel bars and hard chrome plated bars for various applications.

PACKAGINGEach bar and tube are protected by recyclable extruded polyethylene film (Ø 18 mm - Ø 120 mm) or cardboard tube (Ø 25 mm - Ø 200 mm) before being bundled for onward delivery. Further packaging solutions (Lamiflex®, wooden boxes, pallets and waterproof foil) are available upon specific request.


05

STEP 01

PEELING, ROLLING, PREFORMING, GRINDING AND PREFINISHING.

STEP 02

AUTOMATED HIGH FREQUENCY MICRO FISSURED HARDCHROME PLATING PROCESS THROUGH DEGREASING,

PLATING AND RINSING. IN ADDITION TO THE STANDARD CHROME OVERLAY IT ISPOSSIBLE TO SUPPLY CUSTOM-DESIGNED SOLUTIONS.

STEP 03

POLISHING THROUGH MULTIPLE ABRASIVE BELTS,COMPUTERIZED LASER TOLERANCE CONTROL, AUTOMATICSURFACE DEFECTS DETECTION AND SUBSEQUENT QUALITYSELECTION. FINAL ONLINE PACKAGING BY EXTRUSION OF

RECYCLABLE POLYETHYLENE FILM OR CARDBOARD TUBES.

The complete production process, from peeling to packaging, is fully automated.The micro fissured hard chrome overlay on the surface ensures outstanding resistance against mechanical frictions and aggressive environmental conditions.


FULLY AUTOMATED PRODUCTION PROCESSES


Our two corrosion resistance test chambers(NSS) and laser surface controls ensuremonitoring of our full production.Since 1999 we are proud to holdcertification of the quality managementsystem in accordance with UNI-ISO 9001:2015(DNV No. 06144-2000-AQ-VEN-SINCERT).

Quality Matters !

QUALITY CONTROLLED AND CERTIFIED

We see different requirements for quality on a daily basis. Sidergamma has invested considerable resources in all of our quality control procedures and we continue to review regularly, always striving to be the best in our field.

Place and date:

For the issuing office:

Vimercate (MB), 15 April 2021

DNV - Business AssuranceVia Energy Park, 14, - 20871 Vimercate (MB) - Italy

Zeno BeltramiManagement Representative

Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid.

ACCREDITED UNIT: DNV GL Business Assurance Italia S.r.l. , Via Energy Park, 14 - 20871 Vimercate (MB) - Italy - TEL: +39 68 99 905 . www.dnvgl.it

MANAGEMENT SYSTEMCERTIFICATE Certificate no.:CERT -06144 -2000 -AQ -VEN -SINCERT Initial certification date:23 April 2000

Valid:19 April 2021 – 18 April 2024

This is to certify that the management system ofSIDERGAMMA S.r.l.Via IV Novembre, 3 - 36030 Zugliano (VI) - Italy

has been found to conform to the Quality Management System standard:

ISO 9001:2015

This certificate is valid for the following scope:Mechanical machining and chrome plating of bars and steel tubes. Trade of steel

chromium -plated bars and tubes (IAF 29 ,17)


OUR PRODUCTS

08

Ground and hard chromium plated cold drawn steel tubesSurface roughness max 0.2μmSurface hardness HV 900/1100Straightness max 0.8 mm/m.

HARD CHROMIUM PLATED TUBES

HARD CHROMIUM PLATED BARS

Peeled, ground and hard chromium plated hot rolled steel barsSurface roughness max 0.2μmSurface hardness HV 900/1100Straightness max 0.3 mm/m.

CYLINDER TUBES

Cold drawn steel precision tubes for hydraulic cylindersInside surface roughness max 0.4μmStraightness 1.0 mm/m.

Bespoke machined parts in accordance with customer designs

MACHINED PARTS


Round steel bars, ground and chrome plated through the electrochemical process. The fundamental characteristic of this product is the dimensional accuracy with f7 tolerance guarantee according to EN ISO 286-2. Chrome plating gives high surface hardness and resistance to external agents, an essential element for the production of pistons of hydraulic andpneumatic cylinders, as components subject to friction. The rods used for the chrome plating process can be hot rolled, according to EN 10083, or cold finished (drawn, turned or ground), according to EN 10277.

REGULATORY REQUIREMENTSEN 10083-1/2/3 properties of non-alloyed and alloyed steels for quenching and tempering.EN 10277-1/5 bright steels, general features and properties of steels for quenching and tempering.EN ISO 286-2 reference norm for precision diameter tolerance.

CHROME PLATED BARS

Chrome plated bars are mainly used in the production of hydraulic and pneumatic cylinders pistons. However, this product can also be applied to other sectors that require dimensional accuracy, wear and corrosion resistance.


MAIN APPLICATION FIELDS

HYDRAULIC AND PNEUMATIC CYLINDERS

Backhoe loadersAgricultural and forestry machineryTractors and towing machinesEarthmoving machinesSnowplows and grittersForkliftsHydraulic lifting platformsHydraulic presses and punching machinesGarbage compactorsHydraulic lifts

CIVIL AND INDUSTRIAL AUTOMATION

RoboticsAutomatic gates and doorsAutomatic warehousesAnimal farming machineryShock absorbers for automotivePlastic extrusion plantsFood production plants

SPECIAL APPLICATIONS

DrillingWind power generatorsShip construction and repairsAerospace constructionMedical equipmentSports equipment


CHROME PLATED BARS:

The steel bars subjected to the chrome plating process are available in different delivery requirements, in order to obtain specific properties.

NORMALIZATION

Heat treatment at specific temperatures followed by gradual cooling in controlled atmosphere. During this process, the steel structure becomes more refined and improves its impact properties (Perlitic structure).

INDUCTION HARDENING

The surface of the steel bar is heated by electric induction followed by fast cooling. This process leads to a high surface hardness, but also to fragility and low impact values (Martensitic surface structure).

QUENCHING

Quenching (heating to a specific temperature, followed by rapid cooling in water or oil) and tempering (reheating to a specific temperature below the critical point) to achieve specific microstructures: this process leads to a good hardness and resistance and it reduces its fragility in comparison to induction hardening (Sorbite structure).

DELIVERY SPECIFICATIONS

CHROME PLATED BARS:


AISI 304/316/431Up to 2000 hours corrosion resistance in Neutral SaltSpray (NSS) test ISO 9227 Rating 9 · ISO 10289

GAMMAPLUS INOX

GAMMAPLUS 500

500 hours corrosion resistance in Neutral Salt Spray(NSS) test ISO 9227 Rating 9 · ISO 10289Double chrome layer 25μm+25μm

96 hours corrosion resistance in Neutral Salt Spray(NSS) test ISO 9227 Rating 10 · ISO 10289300 hours corrosion resistance NSS ISO 9227Rating 9 · ISO 10289Chrome layer ≥ 35μm

GAMMAPLUS 300

GAMMAPLUS 200

200 hours corrosion resistance in Neutral Salt Spray(NSS) test ISO 9227 Rating 9 · ISO 10289Chrome layer ≥ 20μm

SUPPLY RANGE

RANDOM LENGTHS: up to diameter 19 mm lengths 3-5 m, from diameter 20 mm lengths 5-7.5 m.

FIXED LENGTHS: al l bars can be supplied cut to fixed lengths, quick del ivery and qual ity of service are unaffected by using modern automatic saws. The standard tolerance on fixed lengths is -0 /+5 mm, more restr ict ive tolerances can be agreed during the negotiation of the order.


Diameter

mm

Diameter

inches

Mass

Kg/m

Tolerance on diameterin mm

f7 h7

8 - 0.39 - 0.013- 0.028

+ 0- 0.01510 - 0.61

12 0.88

- 0.016- 0.034

+ 0- 0.018

12.7 ½ 0.9914 - 1.2115 - 1.39

15.88 5/8 1.5516 1.5818 - 2.00

19 - 2.22

- 0.020- 0.041

+ 0- 0.021

19.05 ¾ 2.2420 - 2.4622 - 2.98

22.22 7/8 3.0424 - 3.5525 - 3.85

25.40 1 3.9828 - 4.83

28.57 1 1/8 5.0330 - 5.55

31.75 1 ¼ 6.21

- 0.025- 0.050

+ 0- 0.025

32 - 6.3134.92 1 3/8 7.51

35 - 7.5536 - 7.9938 - 8.90

38.10 1 ½ 8.9540 - 9.8642 - 10.87

44.45 1 ¾ 12.1845 - 12.4848 - 14.1950 - 15.41

Diameter

mm

Diameter

inches

Mass

Kg/m

Tolerance on diameterin mm

f7 h7

50.80 2 15.90

- 0.030- 0.060

+ 0- 0.030

55 - 18.6456 - 19.32

57.15 2 ¼ 20.1360 - 22.1863 - 24.46

63.50 2 ½ 24.8565 - 26.04

69.85 2 ¾ 30.0770 - 30.2075 - 34.66

76.20 3 35.7880 - 39.44

82.55 3 ¼ 41.99

- 0.036- 0.071

+ 0- 0.035

85 - 44.5288.9 3 ½ 48.6990 - 49.9195 - 55.60

100 - 61.62101.60 4 63.61

105 - 67.92110 - 74.56

114.3 4 ½ 80.49115 - 81.48120 - 88.74

125 - 96.29

- 0.043- 0.083

+ 0- 0.040

130 - 104.33140 - 120.76150 - 138.62160 - 157.72170 - 178.05180 - 190.62

200 - 246.44 - 0.050- 0.096

+ 0- 0.072

CHROME PLATED BARS: DIMENSIONAL RANGE AND TOLERANCES

EN ISO 683-2 42CrMo4

CHROME PLATED BARS:


Chrome plated bars can be manufactured starting from solid bars in different steel grades: for example, with lowcarbon content, with high carbon content for quenching and tempering or alloyed steel grades for quenching andtempering. Different steel grades allow a wide choice of products with the most suitable mechanical properties forevery specific application.

(¹) This steel grade is not regulated by a norm, chemical and mechanical properties indicated in this catalogue are not guaranteed and aresubject to change.(²) > Ø18

(*) NOTE: All material conforms to the specification and values detailed above. In accordance with the specification for steel bar, the testing ofthe mechanical properties can be performed on a sample of any finished condition.Test certificates report the results of the sample tested and therefore may not be a true reflection of the properties received.

CHEMICAL COMPOSITION

MECHANICAL PROPERTIES

(¹) Cr + Ni + Mo ≤ 0.63%

Regulatoryrequirements

Steelgrade

Chemical elements (% on mass)

C Si Mn P S Cr Mo Ni V N

min. max. min. max. min. max. max. min. max. min. max. min. max. max. min. max. min. max.

EN ISO 683-1 EN 10277-5

C45¹ 0,42 0,50 0,40 0,50 0,80 0,05 0,045 0,40 0,10 0,40

C45E¹ 0,42 0,50 0,40 0,50 0,80 0,03 0,035 0,40 0,10 0,40

C45R¹ 0,42 0,50 0,40 0,50 0,80 0,03 0,02 0,040 0,40 0,10 0,40

NA 20MnV6 0,16 0,22 0,10 0,50 1,30 1,70 0,035 0,045 0,10 0,20

EN 10267 38MnV6 0,34 0,41 0,15 0,80 1,20 1,60 0,03 0,035 0,30 0,08 0,08 0,20 0,01 0,02

EN 10267 38MnVS6 0,34 0,41 0,15 0,80 1,20 1,60 0,03 0,02 0,06 0,30 0,08 0,08 0,20 0,01 0,02

EN ISO 683-2 42CrMo4 0,38 0,45 0,4 0,6 0,9 0,025 0,035 1,2 0,3

Steelgrade

Del

iver

ysp

eci�

catio

ns

Yield point min. ReH (N/mm²=Mpa)

Tensile strength min./max. Rm (N/mm²=Mpa)

Elongation (longit.) min. %

Diameters range in mm

<16 >16<40

>40<100

>100 <160

>160 <200 <16 >16

<40>40

<100>100 <160

>160 <200 <16 >16

<40>40

<100>100 <160

>160 <200

EN ISO 683-1 EN 10277-5

C45 C45E C45R

+N* 340 305 305 275 275 620 580 580 560 560 14 16 16 16 16

+QT* 490 430 370 - - 700 850

650 800

630 780 - - 14 16 17 - -

NA¹ 20MnV6 +AR 450 440 400 - - 600 750

560 710

530 680 - - 19 19 19 - -

EN 10267 38MnV6 +AR - 520² 520 520 520 - 800 1000²

800 1000

800 1000

800 1000 - 12² 12 14 14

EN 10267 38MnVS6 +AR - 520² 520 520 520 - 800 1000²

800 1000

800 1000

800 1000 - 12² 12 14 14

1100 1000 900 800 750


STEEL GRADES IN USE

+QT 900 750 650 5005501300 1200 1100 950

10 11 12 13 14900

CHROME PLATED TUBES GAMMAPLUS 200E

CHROME PLATED TUBES AND TELESCOPIC TUBES:


200 hours corrosion resistance in Neutral Salt Spray (NSS)test ISO 9227 Rating 9 · ISO 10289Chrome layer ≥ 25μm

CHROME PLATED TELESCOPIC TUBES GAMMAPLUS 200T

200 hours corrosion resistance in Neutral Salt Spray (NSS)test ISO 9227 Rating 9 · ISO 10289Chrome layer ≥ 25μmInner surface skived & roller burnished/honed ISO H8

RANDOM LENGTHS:up to diameter 19 mm lengths 3-5 m, from diameter 20 mm lengths 5-7.5 m.

REGULATORY REQUIREMENTSEN 10305-1 seamless cold drawn tubes (standard stock).EN 10305-2 welded cold drawn tubes (upon request).EN ISO 286-2 regulatory requirement for tolerance of outside diameter.

MAIN APPLICATION FIELDSChrome plated tubes are used in the production of hollow piston rods, shafts for cylinders, linear actuators and in every application where weight saving is essential, like agricultural and forestry machinery, lifting hydraulic platforms and common industrial equipment in general.

Seamless tubes according to EN 10305-1, externally ground and hard chrome plated hexavalent chromium free (CrVI free), specifically meant for production of hollow piston rods for hydraulic cylinders. The outside chromium layer grants superior surface microhardness properties and corrosion resistance, combined to high dimensional precision of the outside diameter. The same chrome plating process, upon request, could be applied to welded cold drawn tubes (EN 10305-2) too.

FIXED LENGTHS: all tubes can be supplied cut to fixed lengths, quick delivery and quality of service are unaffected by using modern automatic saws. The standard tolerance on fixed lengths is -0 /+5 mm, more restrictive tolerances can be agreed during the negotiation of the order.

SUPPLY RANGE



The steel grade used for the standard production of seamless chrome plated tubes and telescopic tubes is E355 according to EN 10305-1 in delivery condition “stress relieved” (+SR). On request, upon prior agreement of conditions and minimum quantities, it is possible to provide tubes in other steel grades and delivery conditions among the ones described in this catalogue.

COLD DRAWN / SOFT (+LC acc. EN 10305 / BKW acc. DIN 2391):

the final heat treatment is followed by a suitable drawing pass (limited reduction of area). With this process high mechanical properties are obtained, whilst partially reducing residual stresses of the metal for material in condition +C.

COLD DRAWN / HARD (+C acc. EN 10305 / BK acc. DIN 2391):

no heat treatment after final cold drawing. This delivery condition allows the product to reach considerably high mechanical properties, but residual stresses remain due to the cold deformation process.

STRESS RELIEVED (+SR acc. EN 10305 / BK+S acc. DIN 2391):

after the final cold drawing process, the tubes are stress relieved by heat treatment in a controlled atmosphere. This further reduces residual stress due to the cold deformation process, whilst preserving high mechanical properties and rigidity. This process also allows the material to reach good impact properties.

ANNEALED (+A acc. EN 10305 / GBK acc. DIN 2391):

after the final cold drawing process, the tubes are annealed in a controlled atmosphere. In this case residual stresses due to the cold deformation process are further reduced, but with a higher reduction of mechanical properties too.

NORMALIZED (+N acc. EN 10305 / NBK acc. DIN 2391):

after the final cold drawing process, the tubes are normalized in a controlled atmosphere at a temperature exceeding the austenizing temperature. This treatment almost completely eliminates residual stresses of the metal, which considerably increases impact properties, but yield and tensile properties are drastically reduced.

DELIVERY SPECIFICATIONS


Outside diameter Thickness (mm)

Nominalvalue(mm)

Tolerance f7(mm)

Tolerance h7(mm)

3.0 4.0 5.0 7.5 10.0

Mass (Kg/m)

18 -0.016 /-0.034 +0 /-0.018 1.11 20

-0.020 / -0.041 +0 / -0.021

1.26 1.5822 1.40 1.7825 1.63 2.4730 2.00 2.56 3.08 4.1635

-0.025 / -0.050 +0 / -0.025

2.37 3.06 3.70 4.0940 4.32 6.01 7.4045 4.93 6.94 8.6350 5.55 7.86 9.8655

-0.030 / -0.060 +0 / -0.030

6.16 8.79 11.1060 6.78 9.71 12.3365 7.40 10.64 13.5670 8.01 11.56 14.8075 8.50 12.48 16.0380 9.25 13.41 17.2685

-0.036 / -0.071 +0 / -0.036

9.86 14.33 18.5090 10.48 15.26 19.73

100 11.71 17.11 22.20110 12.95 18.96 24.66120 14.18 20.81 27.13

Tolerance f7 EN ISO 286-2.Custom supply of tubes with tolerance h7 EN ISO 286-2 upon demand.

EN10305-1

Max. thickness - Min. thicknessEXCENTRICITY: x 100 < 10%

Max. thickness - Min. thickness

STRAIGHTNESS: max. 0.3 mm/m on tube total length

SURFACE ROUGHNESS: max. 0,2μm

SURFACE HARDNESS: HV 900/1100

INSIDE DIAMETER:

OUTSIDE DIAMETER:

THICKNESS:

CHROME PLATED TUBES:DIMENSIONAL RANGE AND TOLERANCES

±10% with minimum ± 0.1 mm



Mechanical and chemical properties of steel grades, as well as their possible delivery conditions, are grades accordingto the norm of the feedstock tubes subjected to the chrome plating process.Feedstock tubes are manufactured by the cold drawing process, which provides dimensional precision, while differentdelivery conditions are foreseen to help reach various levels of mechanical properties, according to specific needs.Standard grade E355+SR is regularly ready-on-stock. The “stress relieved” delivery condition offers a good compromisebetween the mechanical properties and the rigidity needed to obtain a shaft, reaching in the meanwhile impactproperties of a minimum average value of 27 Joule at -20°C (*).

(*) Led longitudinally on standard sample 10x10x55 mm.

CHEMICAL COMPOSITION


Elementi chimici (% sulla massa)

C max. Si max. Mn max. Pmax.

Smax. Al min.

EN 10305-1E215 0.10 0.05 0.70 0.025 0.025 0.025E235 0.17 0.35 1.20 0.025 0.025 0.015E355 0.22 0.55 1.60 0.025 0.025 0.020

EN 10305-2

E155 0.11 0.35 0.70 0.025 0.025 0.015E195 0.15 0.35 0.70 0.025 0.025 0.015E235 0.17 0.35 1.20 0.025 0.025 0.015E275 0.21 0.35 1.40 0.025 0.025 0.015E355 0.22 0.55 1.60 0.025 0.025 0.020


MECHANICAL PROPERTIES

Deliveryspeci�cation

+C +LC +SR +A +NRm

MpaAll.%

RmMpa

All.%

ReHMpa

RmMpa

All.%

RmMpa

All.%

ReHMpa

RmMpa

All.%

EN10305-1

E215 430 8 380 12 280 380 16 280 30 215 290-430 30E235 480 6 420 10 350 420 16 315 25 235 340-480 25E355 640 4 580 7 450¹ 580 10 450 22 355 490-630 22

EN10305-2

E155 400 6 350 10 245 350 18 260 28 155 270-410 28E195 420 6 370 10 260 370 18 290 28 195 300-440 28E235 490 6 440 10 325 440 14 315 25 235 340-480 25E275 560 5 510 8 375 510 12 390 22 275 410-550 22E355 640 4 590 6 435 590 10 450 22 355 490-630 22

(¹) Valid for tubes with outside diameter < 160 mm, > 160 mm ReH ≥ 420 Mpa


Summarised below are the indicative comparisons between current and expired steel grades and norms.

EN Norms UNI Norms DIN Norms AFNOR Norms EN 10305-1 EN 10305-2E215 Fe280 UNI 7945 St 30Si DIN 2391 Tu37b NF A 49-310E235 Fe360 UNI 7945 St 35 DIN 2391 -E355 Fe490 UNI 7945 St 52 DIN 2391 Tu52b NF A 49-310

E155 Fe280 UNI 7946 - -E195 Fe320 UNI 7946 RSt 34.2 DIN 2393 -E235 Fe360 UNI 7946 RSt 37.2 DIN 2393 -E275 - - -E355 Fe490 UNI 7946 St 52.3 DIN 2393 -

STEEL GRADES COMPARISON CHART

STEEL GRADES IN USE

Steelgrades

Steelgrades





CYLINDER TUBESCOLD DRAWN STEEL PRECISION TUBES FOR HYDRAULIC CYLINDERS

EN10305-1 seamless, skived and roller burnished/honed ISO H8, E355+SREN10305-2 welded DOM, skived and roller burnished/honed ISO H8, E355+SR

EN10305-1 seamless, skived and roller burnished/honed ISO H8, in SS AISI 304/304L and 316/316L

INSIDE SURFACE ROUGHNESS: max 0,4μm STRAIGHTNESS: 1,0 mm/m RANDOM LENGTHS: 5-10 mEN10305-1 +SR EN10305-2 +SR / +C

WT 5 6 6,35 7,5 8,5 9,52 10 12,5 12,7 13,5 15 17,5 20 22,5 25 Ø ext WT 2,5 3 4 5 6 7,5 10 12,530,035,040,042,045,050,052,055,057,058,060,062,063,565,070,072,073,075,076,278,080,082,082,583,085,086,088,990,092,095,095,2

100,0101,6102,0105,0107,0110,0112,0114,3115,0120,0125,0130,0135,0139,7140,0145,0146,0150,0155,0160,0165,0170,0175,0177,8180,0185,0190,0195,0200,0203,2205,0210,0215,0220,0225,0230,0235,0240,0245,0250,0254,0255,0260,0267,0270,0280,0300,0

WT 5 6 6,35 7,5 8,5 9,52 10 12,5 12,7 13,5 15 17,5 20 22,5 25 Ø ext WT 2,5 3 4 5 6 7,5 10 12,5

EN10305-2 welded DOM, smooth bore (RTU-ready to use) ISO H9, E355+C

WT = wall thicknessCustom solutions upon request All sizes in mmØ ext = Ø outside diameter

Bespoke machined parts in accordance with customer designs.Through the collaboration with a local network of highly skilled contractors with extensive know-how, Sidergamma offers the

possibility to supply material machined in accordance with customer designs.

Contact us for a free quotation or go to the “Quick Quote” section of our webpage and select the category “Custom solutions upon request”.


MACHINED PARTS


WAREHOUSE

In 2020, the construction of the new 3,600 m² warehouse was completed. This now houses more than 5,000 tons of ready-to-ship goods.

PACKAGING AND SURFACE PROTECTION

PACKAGING

CERTIFICATES AND MARKINGS

SURFACE PROTECTION

Random lengths and fixed lengths are supplied in bundles secured with iron straps combined with protective material or reinforced adhesive tape according to weight and dimensions. Polyester bands are also supplied to simplify handling operations. Further packaging solutions (Lamiflex®, wooden boxes, pallets and waterproof foil) are available upon specific request.

Every supply is completed by mill test certificates type 3.1 according to EN 10204. Traceability is granted by labels or paint marking on the protective envelope.

Each chrome bar and tube are protected by recyclable extruded polyethylene film (Ø 18 mm - Ø 120 mm) or cardboard tube (Ø 25 mm - Ø 200 mm), then packaged into bundles.



BIANCO GROUP

U.S.A. CANADA SPAIN FRANCE U.K. GERMANY SWEDEN ITALIY

The history of the Bianco Group began in 1958 in Italywith the foundation of F. G. Bianco, active in thedistribution of steel tubes, originally based in Milanand later in Flero (Brescia), where it still exists under thename of Tubindustria.Between the late `60s and early `70s the group grewwith SICAM (Italy), STAD (France) and CST (ClevelandSteel and Tubes, England), which were the basis for thecreation of an international group and the first steptowards the establishment of an integrated distributionnetwork. Today Bianco Group is made up of over 20steel stockholding, distribution, processing and tradingcompanies in Europe and North America.

Over 1,000 highly qualified employees serve morethan 16,000 customers worldwide every day. A wellstructured group that, despite the exceptionalgrowth, has been able to maintain the originalcharacteristics of flexibility and speed as a key factorin its trade policy. Through the essential support ofover 220,000 m² covered warehouses and theoutstanding availability of steel products – morethan 350,000 tons – the group is able to meet almostall enquiries efficiently and reliably, even theoddest ones!


Thanks to the steady commitment to reduce energy consumption, in 2017 Sidergamma was granted important funding from The Local Government of Veneto for the installation of new “high frequency current electronic rectifiers” connected to the galvanic tanks.

The chrome plating processing involves the use of current transformers, called rectifiers, to rectify the alternate current coming from the distribution network (AC) into direct current (DC). The direct current (DC) allows the chromium deposit in the chrome solution on the bars to overlay.

The replacement of outdated rectifiers with low AC/DC conversion efficiency and high energy consumption in favor of the installation of new rectifiers allowed not only significant energy saving and lower environmental impact but also higher performance in the chromium deposit process.

The Executive Decree of the ERDF Management Area N.10 of November 27, 2017 published in the Official Gazette of theVeneto Region n. 118 of December 7, 2017 has admitted Sidergamma s.r.l. to the benefits of the tender for POR ERDF2014-2020 action 4.2.1 “Incentives aimed at reducing energy consumption and emissions of climate-altering gases ofenterprises and production areas including the installation of renewable energy production plants for self-consumption,giving priority to high-efficiency storage technologies".

THE FUNDED PROJECT

Highway A4 (E70) Turin - Milan - Venice.Exit junction highway A31 (Valdastico), direction Piovene Rocchette.

Exit Pedemontana Veneta (SPV), direction TrevisoExit Breganze, then follow directions to Zugliano.

HOW TO REACH US

Treviso Sant’Angelo Antonio Canova 67 KmVenice Marco Polo 100 Km

Verona Villafranca Valerio Catullo 105 KmBologna Guglielmo Marconi 173 Km

Bergamo Orio al Serio Il Caravaggio 202 KmTrieste Friuli Venezia Giulia Ronchi dei Legionari 208 Km

Milan Linate Forlanini 234 KmMilan Malpensa 289 Km

MAIN AIRPORTS




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The sale or copy of all or part of it are illegal and prohibited.SIDERGAMMA® and GAMMAPLUS® are registered trademarks.

Contents of this publication are given as indicative information without any responsibility from our side for any possible mistake.

First edition December 2020Second edition June 2022

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Chrome plated bars and tubes - Sidergamma

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