EN 1.4372, ASTM TYPE 201 / UNS S20100 Stainless Steel

EN 1.4372, ASTM TYPE 201 / UNS S20100 Stainless Steel

EN 1.4372, ASTM TYPE 201 / UNS S20100 Stainless Steel General Characteristics 201/4372 is a low-nickel stainless steel with properties approaching 301/4310 but with a higher work hardening coefficient. 201/4372 is an austenitic stainless steel, which belongs to the family of the austenitic low...
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EN 1.4372, ASTM TYPE 201 / UNS S20100 Stainless Steel

General Characteristics

201/4372 is a low-nickel stainless steel with properties approaching 301/4310 but with a higher work hardening coefficient.


201/4372 is an austenitic stainless steel, which belongs to the family of the austenitic low nickel CrMn stainless steels, in which manganese replaces a part of the nickel that is normally alloyed to CrNi standard grades. It is the basic product of the CrMn stainless steel family. Due to its high nitrogen content, 201/4372 has increased mechanical strength and shows a high degree of work hardening on mechanical deformation.


The corrosion resistance of the austenitic CrMn grades is usually slightly below the corrosion resistance of the austenitic CrNi standard grades. 201/4372 is used in applications where a combination of high mechanical strength and good formability as well as corrosion resistance is needed. Due to its tendency to work hardening, 201/4372 can absorb an increased amount of energy during deformation. It can be delivered in the temper rolled condition with different strength levels.


Typical Applications

Household appliances

Kitchen utensils

Sinks

Doors and windows

Railroad cars


Product forms, available sizes and finishes

Flat

Product typeFinishesThicknessWidth

Cold rolled coil

2B, 2D, 2E, 2F, 2G, 2H, 2K, 2R

0,31-3,58

12-1524

Cold rolled sheet

2B, 2D, 2E, 2F, 2G, 2H, 2K

0,31-3,58

18-1524

Hot rolled coil, pickled

1D

2,54-9,53

400-1524


Chemical Composition

The typical chemical composition for this grade is given in the table below, together with composition limits given for the product according to different standards. The required standard will be fully met as specified on the order.


The chemical composition is given as % by mass.


CMnCrNiN

Typical

0.05

6.6

16.1

3.6

0.08

ASME II A SA-240

≤0.15

5.5-7.5

16.0-18.0

3.5-5.5

≤0.25

ASTM A240

≤0.15

5.5-7.5

16.0-18.0

3.5-5.5

≤0.25

ASTM A666

≤0.15

5.5-7.5

16.0-18.0

3.5-5.5

≤0.25

EN 10028-7

≤0.15

5.5-7.5

16.0-18.0

3.5-5.5

0.05-0.25

EN 10088-2

≤0.15

5.5-7.5

16.0-18.0

3.5-5.5

0.05-0.25

EN 10088-4

≤0.15

5.5-7.5

16.0-18.0

3.5-5.5

0.05-0.25


Mechanical Properties

The mechanical properties of the available products are given in the table below


The mechanical properties of the available products in soft annealed condition at room temperature are given in the table below. Moderate strengths can be reached at elevated temperatures (~550 °C/1022 °F). Temperatures for excessive scaling are close to 850 °C/1562 °F. 


This grade, along with other austenitic corrosion-resistant steels, exhibits very high ductility and high elongation to fracture. It is not susceptible to brittle fracture in the solution annealed condition.


Standard

Rp0.2

Rp1.0RmElongationRockwellHB

MPa

MPa

MPa

%



Product type: Cold rolled coil and sheet

Typical (thickness 1 mm)

430

475

775

65



ASTM A240

≥ 310


≥ 655


≤ 100HRB

≤ 241

ASTM A666

≥ 310


≥ 655




EN 10028-7

≥ 350

≥ 380

680-880

≥ 45



EN 10088-2

≥ 350

≥ 380

680-880

≥ 45



EN 10088-4

≥ 350

≥ 380

750-950

≥ 45



Product type: Hot rolled coil and sheet

Typical (thickness 4 mm)







ASTM A240

≥ 310





≤ 241

EN 10028-7

≥ 330






EN 10088-2

≥ 330






EN 10088-4

≥ 350






Product type: Hot rolled quarto plate

Typical (thickness 15 mm)

375

405

705

40



EN 10028-7

≥ 330

≥ 370

680-880

≥ 40



EN 10088-2

≥ 330

≥ 370

680-880

≥ 40



EN 10088-4

≥ 330

≥ 370

750-950





Physical Properties

The physical properties of the available products are given in the table below


The crystal structure is austenitic, and therefore the material is non-magnetic in the soft annealed condition. The crystal structure becomes slightly magnetic when deformed.


DensityModulus of elasticityThermal exp. at 100 °CThermal conductivityElectrical resistanceMagnetizable

kg/dm3

GPa

10-6/°C

W/m°C

µΩm


7.8

200


15

0.70

No


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