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Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers

Good quality DOM Steel Tube for sales
Good quality DOM Steel Tube for sales
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Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers

China Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier
Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier Dom Welded Steel Tube Cold Drawn Smooth Id Tolerance For Shock Absorbers supplier

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Product Details:

Place of Origin: Zhejiang China
Brand Name: TORICH
Certification: ISO 9001 ISO 14001 TS 16949
Model Number: EN10305-2

Payment & Shipping Terms:

Minimum Order Quantity: 2 ton
Price: USD 800-1100/Ton
Packaging Details: Packing in wooden box,hexagonal bundles or other seaworthy ways.
Delivery Time: 25-45 days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 60000 Ton/Year
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Detailed Product Description
Product Name:: EN10305-2 Welded Precision Cold Drawn DOM Steel Tube For Motorcycle Shock Absorbers Material:: E155 E195 E235 E275 E355
Surface:: With Anti Rust Oil Application:: Auto Shock Absorber Inner Cylinder, Telescopic Cylinders
Shape:: Round OD:: 50-350mm
WT:: 0.5-35mm Length:: 0.1-12.5m
Tolerance:: According To The Following Tables Or Customers’ Request. Spec:: General Length:4-12.5m

 

EN10305-2 DOM Pipe for Motorcycle Shock Absorbers

 

 

EN10305-2 Welded Precision Cold Drawn Steel Tubes


Applications: for Auto industry/for machinery use/Oil Cylinder Tube/Motorcycle shock absorber
Auto shock absorber inner cylinder/Telescopic Cylinders


Size range: O.D.:6-350mm W.T.:1-35mm L:max12000mm

 

Characteristic:High precision with smooth ID tolerance and roughness

 

Steel Grade and Chemical Compositions

Steel Grade C Si Mn P S
Steel name Steel number max max max max max
E155 1.0033 0.11 0.35 0.70 0.025 0.025
E195 1.0034 0.15 0.35 0.70 0.025 0.025
E235 1.0308 0.17 0.35 1.20 0.025 0.025
E275 1.0225 0.21 0.35 1.40 0.025 0.025
E355 1.0580 0.22 0.35 1.60 0.025 0.025

 

Mechanical properties at room temperature
Steel Grade Minimum values for the delivery conditiona b
Steel Name (+Cc) (+LCc) (+SR) (+Ad) (+N)
Rm Mpa A % Rm Mpa A % Rm Mpa ReH Mpa A % Rm Mpa A % Rm Mpa ReHe Mpa A %
E155 1.0033 400 6 350 10 350 245 18 260 28 270-410 155 28
E195 1.0034 420 6 370 10 370 260 18 290 28 300-440 195 28
E235 1.0308 490 6 440 10 440 325 14 315 25 340-480 235 25
E275 1.0225 560 5 510 8 510 375 12 390 21 410-550 275 21
E355 1.0580 640 4 590 6 590 435 10 450 22 490-630 355 22

aRm: tensile strength; ReH: upper yield strength; A: elongation after fracture
b 1Mpa=1N/mm2
c Depending on the degree of cold work in the finishing pass the yield strength may nearly be as high as the tensile strength.
For calculation purposes the following relations are recommended:
for delivery condition +C: ReH ≥0.8 Rm
for delivery condition +LC: ReH ≥0.7 Rm
d For calculation purposes the following relation is recommended:ReH≥0.5Rm
e For tubes with outside diameter ≤30mm and wall thickness ≤3mm the ReH minimum values are 10Mpa lower than the values given in this Table
Note: Special steel grade is also available, according to customer request.

 

For Application of:

Shock Abosorber Steel Tubes Steel Tubes for Shock Abosorber

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

QUALITY CONTROL

1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.

 

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

 

EN10305-2 Welded Steel Tubes with Precision Cold Drawn Steel Tubes for Mechanical / Automotive Application

 

 

EN10305-2 Welded Precision Cold Drawn Steel Tubes
Applications: for Auto industry/for Machinery use/Oil Cylinder Tube/Motorcyle Shock Absorber, inner cylinder/Telescopic Cylinders

 

Quick Detail:
Size Range: O.D.:6-350mm W.T.:1-35mm L:max12000mm

Steel Grade: E195, E237, E275, E355,

 

Description:

ERW+ DOM

The tubes are manufactured from electric welded pre-tubes by cold drawing or other suitable processes.

The tubes not include welds used for joining lengths of flat rolled strips prior to forming the pre-tube

 

Description:

Mechanical tubing made from hot or cold-rolled steel.

Covers electric-resistance-welded low carbon steel tubing for use as mechanical tubing

 

Advantage:

Good concentricity, Better price than seamless.

 

Steel Grade and Chemical Compositions

Steel Grade C Si Mn P S
Steel Name Steel Number max max max max max
E155 1.0033 0.11 0.35 0.70 0.025 0.025
E195 1.0034 0.15 0.35 0.70 0.025 0.025
E235 1.0308 0.17 0.35 1.20 0.025 0.025
E275 1.0225 0.21 0.35 1.40 0.025 0.025
E355 1.0580 0.22 0.35 1.60 0.025 0.025

 

Mechanical properties at room temperature
Steel Grade Minimum values for the delivery condition a b
Steel Name (+Cc) (+LCc) (+SR) (+Ad) (+N)

Rm

Mpa

A %

Rm

Mpa

A %

Rm

Mpa

ReH

Mpa

A %

Rm

Mpa

A %

Rm

Mpa

ReHe

Mpa

A %
E155 1.0033 400 6 350 10 350 245 18 260 28 270-410 155 28
E195 1.0034 420 6 370 10 370 260 18 290 28 300-440 195 28
E235 1.0308 490 6 440 10 440 325 14 315 25 340-480 235 25
E275 1.0225 560 5 510 8 510 375 12 390 21 410-550 275 21
E355 1.0580 640 4 590 6 590 435 10 450 22 490-630 355 22

 

aRm: tensile strength; ReH: upper yield strength; A: elongation after fracture
b 1Mpa=1N/mm2
c Depending on the degree of cold work in the finishing pass the yield strength may nearly be as high as the tensile strength.
For calculation purposes the following relations are recommended:
for delivery condition +C: ReH ≥0.8 Rm
for delivery condition +LC: ReH ≥0.7 Rm
d For calculation purposes the following relation is recommended:ReH≥0.5Rm
e For tubes with outside diameter ≤30mm and wall thickness ≤3mm the ReH minimim values are 10Mpa lower than the values given in this Table
Note: Special steel grade is also available, according to customer request.

 

Applications:

Auto industry/for Machinery use/Oil Cylinder Tube/Motorcycle Shock Absorber

inner cylinder/Telescopic Cylinders

 

Competitive Advantage:

Good source of raw material from Bao Steel.

Prompt delivery time according to PO and agreement.

Produce exactly according to standard and customer's requirement.

Experienced export team for customer service, quick reply within 24 hours.

 

Production Site:

 

EN10305-2 Welded Steel Tubes , Precision Cold Drawn Steel Tubes for Mechanical EN10305-2 Welded Steel Tubes , Precision Cold Drawn Steel Tubes for Mechanical

EN10305-2 Welded Steel Tubes , Precision Cold Drawn Steel Tubes for Mechanical EN10305-2 Welded Steel Tubes , Precision Cold Drawn Steel Tubes for Mechanical

 

 

 

Test Methods:

Tensile test

 

Flattening test

 

Drift expanding test

 

Dimensional inspection

 

Roughness measurement

 

Visual examincation

 

Not-destructive testing

a. Test for longitudinal imperfections-

- Eddy current test - EN10246-3, level E3

- ultrasonic testing - EN10246-7, level U3

 

b. Leak-tightness

- Non-destructive testing for verification of leak-tightness shall be carried out in accordance with EN10246-1

 

 

EN10305 Consists of the following Parts under the general title " Steel tubes for precision applications - Technical delivery conditions "

 

Part 1: Seamless Cold Drawn Tubes

 

Part 2: Welded Cold Drawn Tubes

 

Part 3: Welded Cold Sized Tubes

 

Part 4: Seamless Cold Drawn Tubes for Hydraulic and Pneumatic Power Systems

 

Part 5: Welded and Cold Sized Square and Rectangular Tubes

 

Part 6: Welded Cold Drawn Tubes for Hydraulic and Pneumatic Power Systems

 

Normative references:

 

EN10002-1, Metallic materials - Tensile Testing - Part 1: Method of test at ambient temperature

 

EN10020, Definition and classification of grades of steel

 

EN10021, General technical delivery requirements for steel and iron products

 

EN10027-1, Designation systems for steel - Part 1 : Steel names, principal symbols

 

EN10027-2, Designation systems for steel - Part 2: Numerical systems

 

EN10052, Vocabulary of heat treatment terms for ferrous products.

 

EN10204, Metallic products - Types of inspection documents

 

EN10233, Metallic materials - Tube - Flattening Test

 

EN10234, Metallic materials - Tube - Drift expanding test

 

EN10246-1, Non-destructive testing of steel tubes - Part 1: Automatic electromagnetic testing of seamless and welded ( except submerged arc-welded) ferromagnetic steel tubes for verification of hydraulic leak-tightness

 

EN10246-3, Non-destructive testing of steel tubes - Part 3: Automatic eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imperfections

 

EN10246-5, Non-destructive testing of steel tubes - Part 5: Automatic full peripheral magnetics transducer/flux leakage testing of seamless and welded ( expcept submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal imperfections

 

EN10246-7, Non-destructive testing of steel tubes - Qualification and competence of level 1 and 2 non-destructive testing personnel.

 

EN ISO377, Steel and Steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997)

 

EN ISO 2566-1, Steel - Conversion of elongation values - Part 1: Carbon and Low alloy steels (EN102566-1:1984)

 

EN 10168, Iron and steel products - Inspection documents - List information and description

 

ENV10220, Seamless and welded steel tubes - Dimensions and masses per unit length

 

EN10266, Steel Tubes, fittings and structural hollow sections - Definitions and symbols for use in product standards

 

EN ISO 4287, Geometrical product specifications (GPS) - Surface Texture: Profile method - Terms, definition and surface texture parameters ( ISO 4287:1997)

Contact Details
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Contact Person: Jack Jiang

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