Tuesday, January 4, 2022

Properties at Cryogenic Temperatures of Stainless Steel Tubes

The austenitic stainless steel tubes remain tough and ductile to very low temperatures. Metals such as iron and constructional steel undergo a marked decrease in ductility at lower temperature.

Common Cryogenic Temperatures:

EnvironmentDegrees CDegrees F
Boiling Helium– 268.6– 454
Boiling Hydrogen– 252.5– 418
Freezing Nitrogen– 209.9– 346
Boiling Nitrogen– 195.8– 319
Boiling Methane– 164.0– 265
Solid Carbon Dioxide– 78.5– 108
Boiling Freon 12– 29.8– 22
Water as ice0.032



Effect of Temperature on Modulus of Elasticity:

Stainless SteelRoom Temp. Tensile – ksiDegrees CDegrees F
    Room Temp.At -196øC
301 Stainless Steel10625.4 x 10-628.6 x 10-6
302 Stainless Steel8826.227.2
304 Stainless Steel8724.426.2
347 Stainless Steel9523.327.6



Mechanical Properties at Cryogenic Temperatures:

 Strength by Alloy Listed in ksi
Material Grade301302304304L310S316321347
0øC
Yield4242382835404040
Tensile160120115988890100100
Elong.60%50%60%58%50%68%58%60%
Charpy keyhole notch in ft. lb.39343738353229
 301302304304L3105316321347
-40øC
Yield4443403040454545
Tensile18013513511594105120115
Elong.40%58%55%55%70%67%55%58%
Charpy keyhole notch in ft. lb.
 301302304304L3105316321347
-78øC
Yield5058453548575050
Tensile162164165138110120138136
Elong.52%52%48%50%78%65%53%52%
Charpy keyhole notch in ft. lb.21272630262523
 301302304304L3105316321347
-168øC
Yield6262554062735850
Tensile210210208175140160185180
Elong.44%43%42%44%90%61%47%45%
Charpy keyhole notch in ft. lb.5.59.5211624192219
 301302304304L3105316321347
-196øC
Yield5562574575806052
Tensile275225225192151180211195
Elong.30%40%38%42%93%19%22%19%
Charpy keyhole notch in ft. lb.
 301302304304L3105316321347
-253øC
Yield62695096936865
Tensile258250220180230248230
Elong.38%27%41%71%55%34%
Charpy keyhole notch in ft. lb.19

Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

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