Smooth Precision Seamless Steel Tube With Bright Annealing ISO 9001 Approval
Product Details
cold drawn seamless steel tube
,thick wall steel tube
Product Name: Cold Drawn EN10305-1 Precision Seamless Steel Pipe with Bright Annealing
Material: E235, E255, E355
Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m
Delivery Condition: +C, +LC, +SR, +A, +N
Application: For high precision purpose, auto industry, like manipulator, Shock Absorber, Transmission Shaft, Steering Gear, Car Frame, etc.
Stable Quality with Comeptitive Price.
+N(Bright Annealing) Heat Treatment, Surface is bright and smooth, without oxide scale
Good Extending and Bending Ability.
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 or Cold Rolling, On line inspection
5. Heat Treatment:+SR, +A, +N
6. Straightening/Cutting to specified length/Finished Measuring Inspection
7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.
100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.
| Product Name | EN10305-1 E235 E255 E355 Precision Seamless Steel Pipe |
| Material | E235, E255, E355 |
| Delivery Condition | +C, +LC, +SR, +A, +N |
| Standard | EN10305-1 |
| Size Range | OD: 6-88mm, WT: 1-15mm |
| Application | High precision purpose, auto parts, oil cylinder, etc |
| Round Billet | Bao Steel, Xingcheng Steel, Zhongtian Steel |
| Keyword | Seamless Steel Tube |
| Certificate | TS16949, ISO 9001 |
| HS code | 7304319000 |
| Delivery Time | 45 days |
| Pakcing | Bundles or Woodern Boxes |
| Steel Grade | Chemical Composition | |||||
| Symbol | Material Number |
C Max. |
Si Max. |
Mn Max. |
P Max. |
S Max. |
| E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 |
| E255 | 1.0408 | 0.21 | 0.35 | 0.40--1.10 | 0.025 | 0.025 |
| E355 | 1.0580 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 |
| Steel Grade | +C | +LC | +SR | |||||
| Name | No. |
Rm Mpa |
A % |
Rm Mpa |
A % |
Rm Mpa |
ReH Mpa |
A % |
| E235 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 350 | 16 |
| E255 | 1.0408 | 580 | 5 | 520 | 8 | 520 | 375 | 12 |
| E355 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 450 | 10 |
| Steel Grade | +A | +N | ||||
| Name | No. |
Rm Mpa |
A % |
Rm Mpa |
ReH Mpa |
A % |
| E235 | 1.0308 | 315 | 25 | 340--480 | 235 | 25 |
| E255 | 1.0408 | 390 | 21 | 440--570 | 255 | 21 |
| E355 | 1.0580 | 450 | 22 | 490--630 | 355 | 22 |
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