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B 388 TM22

Description

USA SAE B 388 (2012), B 388 TM22 Specialsteel Thermostat Metal Sheet and Strip and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B 388 TM22
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B 388 TM22 Precipitation-Hardening SAE USA Thermostat Metal Sheet and Strip

Chemical composition(mass fraction)(wt.%) of the B 388 TM22

C Si Mn Ni Cr Al Cu Ti Fe Mo Co Ta Zr W
≤0.13 ≤ ≥ ≤ ≥ ≤ ≥ ≤5.70 ≤6.30 ≤ ≥ ≤ ≥ ≤ ≥ ≤2.00 ≤ ≥ ≤3.00 ≤0.60 ≤11.00

Mechanical Properties of steel grade B 388 TM22

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
736 (≥) 153 (≥) 32 14 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade B 388 TM22

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
14 - -     0.33 -  
326 779 - 44.3 342   -  
377 - 13 42.2   241 312

Heat Treatment of steel grade B 388 TM22

Heat treated : 1977°C - 1883°C

Technological Curves of steel grade B 388 TM22

Cross Reference Table (Equivalent Grade) of B 388 TM22

Grade Standard Country Application
M-22

Relevant standard of B 388 TM22

B 388 (2012) Thermostat Metal Sheet and Strip B-388-(2012).pdf

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