GOST 9941 SEAMLESS COLD-AND WARM-FINISHED TUBES OF CORROSION-RESISTANT STEEL
- Name: Seamless cold-formed pipes made of corrosion-resistant high-alloy steels;
- Scope: It covers the technical specifications for seamless cold-formed pipes made of corrosion-resistant high-alloy steel;
- Dimensions: 5 mm – 426 mm;
- Grade: 03X17H14M3, 03X18H11, 04X18H10, 05X18H10T, 06XH28MAT, 08X13, 08X17H15M3T, 08X17T, 08X18H10, 08X18H10T, 08X18H12T, 08X18H12B, 08X20H14C2, 08X21H6M2T, 08X22H6T, 10X17H13M2T, 10X23H18, 12X13, 12X17, 12X18H9, 12X18H12T, 15X25T, 17X18H9;
GOST 9941 Seamless Cold and Warm-deformed Tubes Made From Corrosion-resistant Steel
Tube material with steel grades:
08H17T, 08H13,
12H13, 15H25T, 04H180N10,
08H20N14S2, 10H17N13M2T, 08H18N12B,
10H23N18,08H18N10T,08H18N12T,08H17N15M3T
12H18N10T,12H18N9,17H18N9,08H22N6T,12H17,06HN28MDT
Delivery condition:
The tubes are delivered in heat treated condition
Tubes are cut square and deburred.
Testing:
Tensile
Flattening
Expansion
Intercrystalline corrosion test
The tubes shall be hydraulically tested and non-destructively examined
| Steel Grade | Tensile strength,MPa,
not lower |
Elongation,%,
Not over |
| 08X17T | 373 | 17 |
| 08X13 | 373 | 22 |
| 12X13 | 392 | 22 |
| 12X17 | 441 | 17 |
| 15X25T | 461 | 17 |
| 04X18H10 | 491 | 45 |
| 08X20H14C2 | 510 | 35 |
| 10X17H13M2T | 530 | 35 |
| 08X18H12B | 530 | 37 |
| 10X23H18 | 530 | 35 |
| 08X18H10 | 530 | 37 |
| 08X18H10T | 549 | 37 |
| 08X18H12T | 549 | 37 |
| 08X17H15M3T | 549 | 35 |
| 12X18H10T | 549 | 35 |
| 12X18H12T | 549 | 35 |
| 12X18H9 | 549 | 37 |
| 17X18H9 | 569 | 35 |
| 08X22H6T | 589 | 20 |
