
Questions & Answers
Steel grades of cracked steel pipes
According to GOST 550-75 standards: 12Kh18N10T, 08Kh18N10T, 10Kh9MFBSh, 15Kh5MU, 12Kh5MA, 15KhM, 12Kh1MF, 12KhM, 15Kh5M, 20, 10.
According to international standards (ASME / ASTM): TP347, TP321, TP316H, TP316, TP304H, TP304, P92, P91, P22, P11, P9, P5.
Standards of cracked steel pipes
International EN/ISO standards:
EN 10295;
EN 10217;
EN 10216;
ISO 9329.
GOST standards:
GOST 9941-81;
GOST 9940-81;
GOST 8732-78;
GOST 8731-74;
GOST 550-75.
Table for calculating the weight of 1 meter of cracked steel pipes
| Outer diameter, mm | Wall thickness, mm | Weight of 1 meter, kg |
| 32 | 3 | 2,08 |
| 38 | 3 | 2,53 |
| 38 | 4 | 3,28 |
| 45 | 4 | 3,99 |
| 57 | 4 | 5,16 |
| 57 | 5 | 6,34 |
| 76 | 5 | 8,65 |
| 76 | 6 | 10,25 |
| 89 | 6 | 12,15 |
| 108 | 6 | 14,93 |
| 108 | 8 | 19,55 |
| 114 | 6 | 15,82 |
| 133 | 8 | 24,64 |
| 159 | 8 | 29,77 |















