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| Categories | Seamless Steel Tube |
|---|---|
| Brand Name: | TORICH |
| Model Number: | DIN 1629 |
| Certification: | ISO 9001-2008 ISO 14001 TS 16949 |
| Place of Origin: | China |
| MOQ: | 5 Ton |
| Price: | negotiable |
| Payment Terms: | T/T L/C D/P D/A WesternUnion MoneyGram Others |
| Supply Ability: | 60000 Ton/Year |
| Delivery Time: | 30 days |
| Packaging Details: | Packing in wooden, hexagonal box or other seaworthy ways |
| Standard: | DIN 1629 |
| Steel Grade: | St37.0 St44.0 St52.0 |
| Material: | Non alloy steel |
| Application: | construction of chemical plant,vessels,pipework and for general mechanical engineering purposes |
| Shape: | Round |
| Secondary or not: | Non-secondary |
| Company Info. |
| TORICH INTERNATIONAL LIMITED |
| Verified Supplier |
| View Contact Details |
| Product List |
Low Carbon Seamless Steel Tube DIN 1629 St37.0 Non-alloyed Steel
Pipe
Standard: DIN 1629 Seamless circular unalloyed steel tubes subject to
special requirements
Applications: used in construction of chemical plant,vessels,pipework and for
general mechanical engineering purposes.
Production Method: Seamless Cold Drawn/Rolling or Hot Rolling
Size range: O.D.:20-660mm W.T.:1-60mm L:max12000mm
Steel Grade and Chemical Compositions:
| Steel grade | Type of deoxidization (R, killed (including semi-killed)) (RR, fully killed) | Chemical composition, % by mass | Addition of nitrogen fixing elements (e.g. not less than 0.020% A) | ||||
| Symbol | Material number | C | P | S | N 1) | ||
| MAX | |||||||
| St 37.0 | 1.0254 | R | 0.17 | 0.040 | 0.040 | 0.009 | - |
| St 44.0 | 1.0258 | R | 0.21 | 0.040 | 0.040 | 0.009 2) | - |
| St 52.0 3) | 1.0421 | R | 0.22 | 0.040 | 0.035 | - | Yes |
1) A content in excess of the maximum value stated is permitted if
a phosphorus conten less than the maximum specified by 0.005% P per
0.001% N is observed. However, the nitrogen content shall not
exceed a value of 0.012% in the cast analysis and 0.014% in the
product analysis. 2) The specified maximum values do not apply if the steels are
supplied with the RR(instead of R) type of deoxidization. 3) The content shall not exceed 0.55% Si and 1.60% Mn in the cast
analysis or 0.60% Si and 1.70% Mn in the product analysis. | |||||||
Mechanical properties of tubes in the as delivewed condition at
room temperature
(For wall thickness exceeding 65mm, the values shall be agreed at
the time of ordering.)
| Steel grade | Upper yield stress ReH for wall thickness, in mm | Tensile strength Rm | Elongation after fracture Aσ | ||||
| Symbol | Material number | up to 16 | over 16 up to 40 | over 40 up to 65 | longitudinal | transverse | |
N/mm2 min | % min | ||||||
| St 37.0 | 1.0254 | 235 | 225 | 215 | 350 2) to 480 | 25 | 23 |
| St 44.0 | 1.0256 | 275 1) | 265 1) | 255 1) | 420 2) to 550 | 21 | 19 |
| St 52.0 | 1.0421 | 355 | 345 | 335 | 500 2) to 650 | 21 | 19 |
1) For cold finished tubes 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 values by 20N/mm2
are permitted. 2) For cold finished tubes in the NBK cindition, minimum values of
tensile strength lower than these values by 10N/mm2 are permitted. | |||||||
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