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Outokumpu 1.4372

通用系列: Steel - Wrought - Stainless - Austenitic提供方: Outokumpu
Austenitic chromium-manganese stainless steel
Type 17Cr-5Ni-7Mn stainless steel: EN 1.4372, AISI 201
  • A low nickel variation to standard austenitic stainless steel grade 1.4301.

Applications
  • Applications like cookware, washing machine baskets and hose clamps are generally used. In contact with food there are national regulations and in some of them chromium content Min. 17 % and nickel content Min. 4 % are required for cutlery materials.
  • Due to its high strength, corrosion resistance and competitive costs, steel grade is suited for the transportation industry.
  • Material is used also in architectural applications, like elevators, windows, doors and lamp posts.

Welding
  • Conventional welding methods and filler materials applied to 300-series can be used. Proper shield against possible Mn-oxide fumes is recommended.
  • Sensitive to intergranular corrosion in the weld heat affected zone when material thickness exceeds 6 mm.
  • Cleaning of the weld seam is important for corrosion resistance. Pickling is recommended.

Fabrication
  • Formability is good, but the forces needed and the elastic return are bigger compared to carbon steels and grade 1.4301 / AISI 304.
  • Steel grade 1.4372 suits for demanding forming operations as well as bending, and drawing due to its high elongation to fracture.
  • Work hardening is pronounced. Sensitivity to delayed cracking after demanding forming processes may be observed, e.g. when deep drawing ratio is close to 2,0 and residual tensile stresses are present.
  • Typically Mn-alloyed grades have a slightly lower surface reflectivity compared to the CrNi-grade 1.4301. This can lead for the need of increased material removal in further polishing and brushing processes.

Corrosion resistance
  • Outokumpu produces grade 1.4372 typically with a chromium content of about 17 wt-% and a nitrogen content of 0,20 wt-% giving the material a corrosion resistance close to grade 1.4301 / AISI 304. Repassivation enhanced by nickel is lower than that of grade 1.4301.
  • In chloride containing solutions pitting and crevice corrosion is possible depending on various parameters like chloride concentration, temperature, pH value, redox potential, crevice geometry and others.
  • Oxidation resistance is good and comparable to steel grade 1.4310 / AISI 301 up to 840°C.
  • The best material performance is reached usually with the help of adequate design, correct post-weld treatment and regular cleaning during use (if applicable).
一般属性

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Technical Datasheet (English)

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可用性
北美洲, 非洲和中东, 拉丁美洲, 欧洲, 亚太地区
其他属性
Applicable Specifications, Metal Type, Alloy Identification, Type Analysis, 密度, Tensile Strength (Ultimate), Tensile Strength (Yield), 0.2%, Tensile Elongation (Break), 拉伸模量, Mean CTE, 导热系数
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加工

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