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Your Loaction £ºHome>>Products>>Seamless Machanical Tubes>>DIN1629/2448 |
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Seamless Machanical Tubes / §¢§Ö§ã§ê§à§Ó§ß§í§Ö §ã§ä§Ñ§Ý§î§ß§í§Ö §ä§â§å§Ò§í |
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DIN1629/2448: SEAMLESS CIRCULAR TUBES OF NON ALLOY STEELS WITH SPECIAL QUALITY REQUIREMENTS
Chemical Composition
Steel Grade |
C % |
Mn % |
Si % |
P % |
S % |
ST37 |
0.17 max |
0.35-0.65 |
0.17-0.37 |
0.040 max |
0.040 max |
ST44 |
0.21 max |
0.50-0.80 |
0.17-0.37 |
0.040 max |
0.040 max |
ST52 |
0.22 max |
¡Ü1.60 |
¡Ü0.55 |
0.040 max |
0.035 max |
Mechanical Properties
Steel Grade |
Tensile Strength MPA |
Yield Strength MPA |
Elongation % |
ST37 |
350-480 |
235 min |
25 min |
ST44 |
420-550 |
275 min |
21 min |
ST52 |
500-650 |
355 min |
21 min |
Dimensional Tolerance |
Type of the Steel pipe |
Out Diameter |
Wall Thickness |
Cold Drawn Pipe |
Out Diameter |
Tolerance ange |
Tolerance Range |
£¾25.4 |
¡À 0.1 |
0-20% |
25.4-38.1 |
¡À 0.15 |
38.1-50.8 |
¡À 0.2 | |
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