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Outokumpu 1.4372

ジェネリックファミリー： Steel - Wrought - Stainless - Austenitic • 提供元： 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).

一般的な属性

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材料ステータス

供給可能

ドキュメント

Technical Datasheet (English)

ドキュメントのダウンロード

可用性

アジア太平洋地域, アフリカ＆中東, ラテンアメリカ, 欧州, 北アメリカ

その他の属性

Applicable Specifications, Metal Type, Alloy Identification, Type Analysis, 密度, Tensile Strength (Ultimate), Tensile Strength (Yield), 0.2%, Tensile Elongation (Break), 引張係数, Mean CTE, 熱伝導性

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