Cold Drawn Seamless Mechnical Tubing / Hot Finished Carbon Steel Pipes
DIN 1629 St37 St52 St44 hot rolled and cold drawn seamless mechnical tubing , hot finished carbon steel pipes
DIN 1629 Seamless Steel pipe Of Non Alloys Steels are made of unalloyed steels, it's main grades are St 37.0, St44.0, St52.0, Din 1629 seamless steel pipes application fields are: chemical plant, vessels, pipework construction and for common mechanical engineering purposes. Normally DIN 1629 standard are manufactured with no limiting working pressure values. Working temperature is limited below 300℃.
2. Size Range: OD: 6-229mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m
3. Stable Quality with Comeptitive Price
4. High Performance and Longer Working Life Steel Pipe
Application: DIN1629 Steel Tubes are used in the construction of chemical plant, vessels, pipework and for general mechanical engineering purpose.
100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.
Chemical composition:
| Steel Grade | Type of deoxidization (R, killed (including semi-killed)) (RR,fully killed) | Chemical Composition, % by mass | |||||
|---|---|---|---|---|---|---|---|
| Symbol | Material Number | C | P | S | N¹) | Addition of nitrogen fixing elements (e.g.not less than 0,020% Al total | |
| St37.0 | 1.0254 | R | 0.17 | 0.040 | 0.040 | 0.009²) | - |
| St44.0 | 1.0255 | R | 0.21 | 0.040 | 0.040 | 0.009²) | - |
| St52.0³) | 1.0421 | RR | 0.22 | 0.040 | 0.035 | - | Yes |
Mechanical properties:
| Steel Grade | Upper Yield Stress ReH for wall thickness, in mm, | Tensile strength Rm N/mm² | Elongation(%) A5 | ||||
|---|---|---|---|---|---|---|---|
| Symbol | Material Number | up to 16 | over 16 up to 40 | over 40 up to 65 | Longitudinal | Transverse | |
| St 37.0 | 1.0254 | 235 | 225 | 216 | 350²) to 480 | 25 | 23 |
| St 44.0 | 1.0256 | 275¹) | 265¹) | 255¹) | 420²) to 550 | 21 | 19 |
| St 52.0 | 1.0421 | 355 | 345 | 335 | 500²) to 650 | 21 | 19 |
| ¹) For cold f inished tube in the NBK condition (annealed above the upper transformation point under shielding gas or in a vacuum), minimum values of yield stress lower than these valued by 20N/mm² are permitted. ²) For cold finished tubes in the NBK condition, minimum values of tensile strength lower than these values by 10N/mm² are permitted. | |||||||
FAQ:
1. Can you provide a sample to check the quality?
We can provide free sample with same or similar sizes for you to check tube quality.
You need to in charge of Express costs.
2. How about your production capacity?
3000 tons/Month.
3. What are your terms of payment?
30%TT in advance, Balance to be paid before shipment.
4. Where is your factory?
Jiaxing city, 2 hours away from Shanghai.
5. How can I get the quotation A.S.A.P?
Please send us an inquiry with full details as following,quotation will sent to you A.S.A.P:
1). Tube Standard
2). Steel Grade
3). Tube Size and Size Tolerance
4). Tube length
5). Quantity
6). If any special requirements
6. How about the minimum order quantity?
Normally for one size above 1 ton.
Welcome to contact us! Thanks.
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