TORICH GOST 8731 10# 20# 16Mn Hot Rolled Seamless Steel Tubes for Gas Transportation
| Standard | GOST 8731 |
| Material | 10#, 20#, 45#, 16Mn, 12CrMo, 15CrMo, 12Cr1MoV etc |
| Size | OD: 10.3-1300mm WT: 1-200mm Length: 1-12m |
| Technique | Hot Rolled |
| Application | For Gas, Air, Water and Oil Transportation, as well as general purpose |
| Grade of Steel | Breaking-down point, MPa (kgf/mm²) | Yeild point, MPa (kgf/mm²) | Relative elongation, % | Brinell hardness (pipe wall thickness over 10 mm) | |
| No less than: | Diameter of dent, no less than, mm | Hardness H, no more than | |||
| 10 | 353 (36) | 216 (22) | 24 | 5.1 | 137 |
| 20 | 412 (42) | 245 (25) | 21 | 4.8 | 156 |
| 35 | 510 (52) | 294 (30) | 17 | 4.4 | 187 |
| 45 | 588 (60) | 323 (33) | 14 | 4.2 | 207 |
| 20X | 431 (44) | - | 16 | - | - |
| 40 | 657 (67) | - | 9 | 3.7 | 269 |
| 30XCA | 686 (70) | - | 11 | - | - |
| 15XM | 431 (44) | 225 (23) | 21 | - | - |
Production Show
QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples of carbon seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us
TORICH GOST 8731 10# 20# 16Mn Hot Rolled Seamless Steel Tubes for Gas Transportation
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.