Description
347 / 347H Stainless Steel Seamless Pipe
Pipe Profile
347H austenitic stainless steel, with good corrosion resistance, welding performance and heat strength. 347H stainless steel is used for heat exchanger tubes for large boiler superheaters, reheaters, steam pipes and petrochemicals.
Specification:
Standard: ASTM A312, A213, A269; A511, A789, A790, SB163, DIN 17456, DIN 17458, EN10216-5, EN10216-2
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 | |||
| 347 | S34700 | 1.4550 | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1 | 17.00-19.00 | 9.00-13.00 |
| 347H | S34709 | 1.4942 | 0.04-0.1 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1 | 17.00-19.00 | 9.00-13.00 |
| Material | UNS | EN | T*S | Y*S | Elongation | Heat Treatment |
| (Mpa) min | (Mpa) min | (%) | ℃ | |||
| 347 | S34700 | 515 | 205 | 35 | 1100-1050 | |
| 347H | S34709 | 1.4942 | 515 | 205 | 35 | 1100-1050 |
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