Description
321 321H Stainless Steel Seamless Pipe
Pipe Profile
321 stainless steel pipe: high-quality carbon structural steel, alloy structural steel and stainless steel heat-resistant steel seamless steel pipe used for steam boiler pipes mainly used for manufacturing high pressure and above. These boiler pipes are often operated under high temperature and high pressure. The pipe will also oxidize and corrode under the action of high temperature flue gas and water vapor. Therefore, the steel pipe is required to have high durability, high oxidation resistance, good structural stability, and hydraulic pillar pipe.
Specification:
Standard: ASTM A789/A790 ASME SA789/SA790
OD: 10—610MM / 1/8”—24”
Thickness: 0.3mm – 70mm, SCH10S, SCH40, SCH40S, SCH80, SCH80S, SCH120, SCH160, etc
Length: 1—12M as buyer request
Surface: NO.1, 180G, 240G, 320G Satin / Hairline, 400G, 600G Mirror finish
Manufacturing process: Hot Rolled, Cold Drawn
Application: oil and gas industry;
offshore stone breaking oil platform
heat exchanger tube, water treatment and water supply system,
fire protection system,
High-pressure pipe,
mechanical and structural components requiring high strength and high corrosion resistance;
Certificate: ISO 9001:2008、PED、ASME、TS
| Material | UNS | EN | Chemical Component % | ||||||
| C | Mn | P | S | Si | Cr | Ni | |||
| 321 | S32100 | 1.4541 | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | 17.00-19.00 | 9.00-12.00 |
| 321H | S32109 | 1.494 | 0.04-0.1 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | 17.00-19.00 | 9.00-12.00 |
| Material | UNS | EN | T*S | Y*S | Elongation | Heat Treatment |
| (Mpa) min | (Mpa) min | (%) | ℃ | |||
| 321 | S32100 | 1.4541 | 515 | 205 | 35 | 1040 |
| 321H | S32109 | 1.494 | 485 | 170 | 35 | 1100-1050 |
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