TORICH ASTM A312 Seamless Heavily Cold Worked Austenitic Stainless Steel Pipe
TORICH ASTMA312 Seamless Heavily Cold Worked Austenitic Stainless SteelPipe
Standard: ASTM A312, ASTM A262, ASTM A370, ASTM A941, ASTM A999/A999M, ASTM A1016/A1016M, E112, E381, ANSI B1.20.1, B36.10, B36.19, AWS A5.9, SAE J1086
Material: TP304H, TP304H, TP309HCb, TP310H, TP310HCb, TP316H, TP347H, TP348H
OD: 10.29-762.0mm
WT: 1.24-12.7mm
Usage: This standard covers seamless austenitic stainless steel pipe for hign-temperature and general corrosive service.
Note: Special steel grade is also available, according to customer request.
Chemical Requirements
| | TP304H | TP309H | TP309HCb | TP310H | TP310HCb | TP316H | TP347H | TP348H |
| C | 0.04-0.10 | 0.04-0.10 | 0.04-0.10 | 0.04-0.10 | 0.04-0.10 | 0.04-0.10 | 0.04-0.10 | 0.04-0.10 |
| Mn | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 |
| P | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
| S | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0030 |
| Si | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Cr | 18.0-20.0 | 22.0-24.0 | 22.0-24.0 | 24.0-26.0 | 24.0-26.0 | 16.0-18.0 | 17.0-19.0 | 17.0-19.0 |
| Ni | 8.0-11.0 | 12.0-15.0 | 12.0-16.0 | 19.0-22.0 | 19.0-22.0 | 11.0-14.0 | 9.0-13.0 | 9.0-13.0 |
| Mo | - | - | 0.75 | - | 0.75 | 2.00-3.00 | - | - |
| Ti | - | - | - | - | - | - | - | - |
| Nb | - | - | 10xC min, 1 10 max | - | 10xC min, 1 10 max | - | - | - |
| Ta | - | - | - | - | - | - | - | 0.10 |
| N | - | - | - | - | - | - | - | - |
| V | - | - | - | - | - | - | - | - |
| Cu | - | - | - | - | - | - | - | - |
| Ce | - | - | - | - | - | - | - | - |
| B | - | - | - | - | - | - | - | - |
| Al | - | - | - | - | - | - | - | - |
| Other | - | - | - | - | - | - | - | - |
Permitted Variations in Wall Thickness
| NPS Designator | Over | Under |
| 1/8 to 2 1/2 incl., all t/D ratios | 20.0 | 12.5 |
| 3 to 8 incl., t/D up to 5% incl. | 22.5 | 12.5 |
| 3 to 8 incl., t/D > 5% | 15.0 | 12.5 |
| 20andlarger, welded,allt/Dratios | 17.5 | 12.5 |
| 20andlarger, seamless,t/Dupto5%incl. | 22.5 | 12.5 |
20andlarger,
seamless,t/D>5% | 15.0 | 12.5 |
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, and it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but you need to 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
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