Latest Products
Contact Us
Tianjin Wanlei Steel Pipe Co.,Ltd
TEL: 86-22-65815991
FAX: 86-22-25343802
CELL: 86-18526839451, 86-18526839452
EMAIL: admin@wanleipipe.com
WEBSITE: www.seamlesscarbonsteelpipe.com
ADD: Room 403, Unit 1, Building 31, Polar Square, Central Business District, Binhai New Area, Tianjin, China (Mainland)
Contact Information
DIN 1629 Seamless Steel Tubes
DIN 1629 seamless steel tubes DIN 1629 seamless circular unalloyed steel tubes subject to special requirements Steel grade: ST37.0, ST44.0, ST52.0 Delivery condition: Hot finished Size range: OD 70mm-610mm, WT 4mm-35mm Length: commerical length Dimension and tolerance: according to EN10216 Test:...
Description
DIN 1629 seamless steel tubes
DIN 1629 seamless circular unalloyed steel tubes subject to special requirements
Steel grade: ST37.0, ST44.0, ST52.0
Delivery condition: Hot finished
Size range: OD 70mm-610mm, WT 4mm-35mm
Length: commerical length
Dimension and tolerance: according to EN10216
Test: cast analysis, tensile test, impact test, electromagnetic test, visual inspection
Certification: PED(97/23/EC) and AD2000, Lioyd's register
Chemical composition
| Steel grade | Elements content, Max, % | ||||||
| C | Mn | Si | S | P | Ni | Al | |
| ST37.0 | 0.17 | -- | -- | 0.040 | 0.040 | 0.009 | -- |
| ST44.0 | 0.21 | -- | -- | 0.040 | 0.040 | 0.009 | -- |
| ST52.0 | 0.22 | 1.60 | 0.55 | 0.040 | 0.035 | -- | ≥0.02 |
Mechanical properties
| Steel grade | Min Yield strength, MPa for S(wall thickness), mm | Tensile strength Rm, MPa | Min Elongation A, % | |||
| S≤16 | S＞16, S≤40 | S＞40, S≤65 | Longitudinal direction | Transverse direction | ||
| ST37.0 | 235 | 225 | 215 | 350-480 | 25 | 23 |
| ST44.0 | 275 | 265 | 255 | 420-550 | 21 | 19 |
| ST52.0 | 355 | 345 | 335 | 400-650 | 21 | 19 |
Tolerances
| Outer diameter, mm | Outer diameter permissible deviation |
| Up to 100 | ±1% (but not less than ±0.5mm) |
| Above 100 up to 200 | ±1% |
| Above 200 | ±1% |
| Wall thickness permissible deviation | ||||||||
| For OD up to 130mm | For OD above 130mm and up to 320mm and wall thickness S | For OD above 320mm | ||||||
| S≤2*Sn | S＞2*Sn, S≤4*Sn | S≤0.05OD | S＞0.05OD, S≤0.11OD | S＞0.11OD | S≤0.05OD | S＞4*Sn | S＞0.05OD, S≤0.09OD | S＞0.09OD |
+15%, -10% | +12.5%, -10% | +17.5%, -12.5% | +15%, -10% | ±12.5% | +20%, -15% | ±9% | +15%, -12.5% | +12.5%, -10% |
Hot Tags: din 1629 seamless steel tubes China, manufacturers, suppliers, factory, high quality, buy
You Might Also Like
