- Zhongzheng Stainless Steel Co., Ltd.
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1YrTianjin, China - Main products: Stainless Steel, Valve, Flange, pipe fitting
Home > Products > Hygienic grade piping series > ASTM A312 Austenitic Chromium Nickel Stainless Steel Tp309 Heat Exchanger Tube Manufacturer
ASTM A312 Austenitic Chromium Nickel Stainless Steel Tp309 Heat Exchanger Tube Manufacturer
- NINGBO/SHANGHAI/TIANJIN/XIAMEN
- T/T
- 25 days
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Product Details
| Surface Treatment | Polished |
Product Description
Grade | C | SI | Mn | Cr | Ni | P | S | Fe |
309 | ≤0.2 | ≤00.75 | ≤02 | 22.0-24.0 | 12.0-15.0 | ≤00.045 | ≤00.03 | Balance |
TP309S | ≤0.08 | ≤00.75 | ≤02 | 22.0-24.0 | 12.0-15.0 | ≤00.045 | ≤00.03 | Balance |
TP309H | 0.04.-0.10 | ≤00.75 | ≤02 | 22.0-24.0 | 12.0-15.0 | ≤00.045 | ≤00.03 | Balance |
Grade | Tensile Strength Ksi(Mpa) | Yield Strength Ksi(Mpa) | Elongation in 2" or 50 mm, % | Hardness Brinell/Vickers | Hardness Rockwell |
TP309S | ≥75(515) | ≥30(205) | ≥35 | ≤192HBW/200HV | ≤90HRB |
TP309H | ≥75(515) | ≥30(205) | ≥35 | ≤192HBW/200HV | ≤90HRB |
Boiler baffles
Furnace components
Oven linings
Fire box sheets
Other high temperature containers.
TP309 Stainless Steel Tubing are austenitic chromium-nickel ss that provide excellent corrosion resistance and heat resistance plus good strength at room and elevated temperatures. The lower nickel content of 309 tubes improves resistance to sulfur attack at high temperatures. The high chromium and nickel content of SUS 309 Pipe & tubes provides comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic 304.
The steel resists oxidation up to 1900°F (1038°C) under non-cyclic conditions
Because of its high chromium and low nickel content, 309 can be utilized in sulfur containing atmospheres up to 1832°F (1000°C). The steel is not recommended for use in highly carburizing atmospheres since it exhibits only moderate resistance to carbon absorption. 309 can be utilized in slightly oxidizing, nitriding, cementing and thermal cycling applications, albeit, the maximum service temperature must be reduced.
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Company Profile
Zhongzheng Stainless Steel Co., Ltd. is a China-based manufacturer specializing in R&D, production, and distribution of stainless steel products. Established in the early 2000s, it serves industries including construction, machinery, food/medical equipment, and energy with precision tubes, sheets, profiles, and custom components.
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- Zhongzheng Stainless Steel Co., Ltd.
- Contact nameLaijing Bu Chat Now
- AddressRoom 104-07, Building 5, Jinghu Technology Park Huanajinghu Garden, Donglihu Subdistrict Dongli District,
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