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ATI Allegheny Ludlum Stainless Steel Type 201, 20% Cold Work (UNS S20100)

Category Metal , Ferrous Metal , Stainless Steel , T S20000 Series Stainless Steel
Manufacturer ATI Allegheny Ludlum
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF ATI Allegheny Ludlum Stainless Steel Type 201, 20% Cold Work (UNS S20100).pdf
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Material Notes:
Allegheny Ludlum Type 201 and 201L have the greatest tonnage of the Cr-Ni-Mn steels (200 series). Type 201 provides advantages over the 18-8 grades in certain applications. Lower cost manganese and nitrogen additions are partial substitutes for nickel making them more economical alloys. Because they possess a very desirable combination of economy plus good mechanical properties and corrosion resistance properties, they have been used in a wide variety of consumer and transportation applications.This austenitic structure achieves significant strengthening through cold working of the material to produce the transformation to a stronger martensitic structure. Type 201 is resistant to a wide variety of mild to moderately corrosive media.Typical applications for Types 201 and 201L are cookware bodies/lids, hose clamps, piston rings, transit car structural member, transit car roofing/siding, thermal window spacers, air bag containers, and truck trailer posts and door frames. Information provided by Allegheny Ludlum Corporation.
Physical Properties Metric English Comments
Density 7.86 g/cc
0.284 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell C 34.5

@Temperature 23.0 °C
34.5

@Temperature 73.4 °F
34.5

@Temperature 23.0 °C
34.5

@Temperature 73.4 °F
Tensile Strength, Ultimate 1044 MPa

@Temperature 23.0 °C
151400 psi

@Temperature 73.4 °F
1045 MPa

@Temperature 23.0 °C
151600 psi

@Temperature 73.4 °F
Tensile Strength, Yield 795 MPa

@Temperature 23.0 °C
115000 psi

@Temperature 73.4 °F
837 MPa

@Temperature 23.0 °C
121000 psi

@Temperature 73.4 °F
Elongation at Break 17.5 %

@Temperature 23.0 °C
17.5 %

@Temperature 73.4 °F
22.3 %

@Temperature 23.0 °C
22.3 %

@Temperature 73.4 °F
Modulus of Elasticity 192 GPa
27800 ksi
Compressive Yield Strength 503 MPa
73000 psi
Thermal Properties Metric English Comments
CTE, linear 16.6 µm/m-°C

@Temperature 20.0 - 100 °C
9.22 µin/in-°F

@Temperature 68.0 - 212 °F
18.0 µm/m-°C

@Temperature 20.0 - 316 °C
10.0 µin/in-°F

@Temperature 68.0 - 601 °F
18.0 µm/m-°C

@Temperature 20.0 - 358 °C
10.0 µin/in-°F

@Temperature 68.0 - 676 °F
20.3 µm/m-°C

@Temperature 20.0 - 871 °C
11.3 µin/in-°F

@Temperature 68.0 - 1600 °F
Specific Heat Capacity 0.502 J/g-°C

@Temperature 0.000 - 100 °C
0.120 BTU/lb-°F

@Temperature 32.0 - 212 °F
Thermal Conductivity 16.3 W/m-K

@Temperature 100 °C
113 BTU-in/hr-ft²-°F

@Temperature 212 °F
23.0 W/m-K

@Temperature 500 °C
160 BTU-in/hr-ft²-°F

@Temperature 932 °F
Melting Point 1400 - 1455 °C
2550 - 2651 °F
Solidus 1400 °C
2550 °F
Liquidus 1455 °C
2651 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.15 %
<= 0.15 %
Chromium, Cr 16 - 18 %
16 - 18 %
Iron, Fe 72 %
72 %
as balance
Manganese, Mn 5.5 - 7.5 %
5.5 - 7.5 %
Nickel, Ni 3.5 - 5.5 %
3.5 - 5.5 %
Nitrogen, N <= 0.25 %
<= 0.25 %
Silicon, Si <= 1.0 %
<= 1.0 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000670 ohm-cm
0.0000670 ohm-cm
Magnetic Permeability 1.96
1.96
D.C. Permeability (m at 200 H)
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