Astm A312 Polished Stainless Steel Pipe Seamless Heavily Cold Worked
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.
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