Categories | Welded Steel Tube |
---|---|
Brand Name: | TORICH |
Model Number: | EN10305-2 |
Certification: | ISO 9001 ISO 14001 TS 16949 |
Place of Origin: | Zhejiang China |
MOQ: | 2 ton |
Price: | USD 800-1100/Ton |
Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
Supply Ability: | 60000 Ton/Year |
Delivery Time: | 25-45 days |
Packaging Details: | Packing in wooden box,hexagonal bundles or other seaworthy ways. |
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 |
Company Info. |
TORICH INTERNATIONAL LIMITED |
Verified Supplier |
View Contact Details |
Product List |
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:
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:
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)