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ATI Allegheny Ludlum Stainless Steel Type 201L, 20% Cold Work (UNS S20103)

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 201L, 20% Cold Work (UNS S20103).pdf
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Material Notes:
Allegheny Ludlum Types 201 and 201L have the greatest tonnage of the Cr-Ni-Mn steels (200 series). Type 201L 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.Balancing of alloying elements (austenitizers versus feritizer) in Type 201L produces an austenitic structure in the annealed condition even at subzero temperatures. This austenitic structure achieves significant strengthening through cold working of the material to produce the transformation to a stronger martensitic structure.Type 201L is a low carbon version of Type 201 and maintains satisfactory intergranular corrosion resistance in applications involving welding particularly heavier gage material. 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 38

@Temperature 23.0 °C
38

@Temperature 73.4 °F
38

@Temperature 23.0 °C
38

@Temperature 73.4 °F
Tensile Strength, Ultimate 1123 MPa

@Temperature 23.0 °C
162900 psi

@Temperature 73.4 °F
1140 MPa

@Temperature 23.0 °C
165000 psi

@Temperature 73.4 °F
Tensile Strength, Yield 843 MPa

@Temperature 23.0 °C
122000 psi

@Temperature 73.4 °F
915 MPa

@Temperature 23.0 °C
133000 psi

@Temperature 73.4 °F
Elongation at Break 18 %

@Temperature 23.0 °C
18 %

@Temperature 73.4 °F
22.3 %

@Temperature 23.0 °C
22.3 %

@Temperature 73.4 °F
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 <= 0.030 %
<= 0.030 %
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 <= 0.75 %
<= 0.75 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000670 ohm-cm
0.0000670 ohm-cm
Magnetic Permeability 3.42
3.42
D.C. Permeability (m at 200 H)
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