2507 dual-phase steel /UNS S32750
Internationally known as:
SAF 2507、UNS S32750、NAS 74N、F53、w-Nr。 1.44 10
Main components of 2507: 25cr-7ni-4mo-0.27n.
2205 is duplex stainless steel.
2205 international common name:
2205 dual-phase steel, UNS S32205, UNS S32205, NAS 329J3L, F5 1, W.-Nr. 1.4462，00Cr22Ni5Mo3N。
022Cr22Ni5Mo3N duplex stainless steel
Composite stainless steel consisting of 2 1% chromium, 2.5% molybdenum and 4.5% nickel-nitrogen alloy. It has high strength, good impact toughness and good overall and local stress corrosion resistance. The yield strength of duplex stainless steel is twice that of austenitic stainless steel, which enables designers to reduce the weight when designing products, and also makes this alloy more competitive than 3 16, 3 17L. This alloy is especially suitable for -50 F/+600 F? In this temperature range. For applications beyond this temperature range, this alloy can also be considered, but there are some limitations, especially when applied to welded structures. ?
Chemical composition:
C: ≤ 0.03
Silicon Si: ≤ 1.00
Manganese Mn: ≤ 2.00
Phosphorus P: ≤ 0.030
Sulfur content: ≤ 0.020
Chromium Cr: 2 1.00 ~ 23.00
Mo Mo: 2.50-3.50
Nickel Ni: 4.50 ~ 6.50
Nitrogen n: 0.08 ~ 0.20
Application field? ：
Pressure vessel, high-pressure storage tank, high-pressure pipeline, heat exchanger (chemical processing industry).
Oil and gas pipeline, heat exchanger pipe fittings.
Sewage treatment system.
Pulp and paper industry classifier, bleaching equipment, storage and processing system.
Rotating shaft, pressure roller, blade, impeller, etc. In a high-strength corrosion-resistant environment.
The container of a ship or truck.
Food processing equipment