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B 438 CTG-1001-K30

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B 438 CTG-1001-K23-MOD B 438 CTG-1001-K34
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Description

USA SAE B 438 (2013), B 438 CTG-1001-K30 Specialsteel Specification for Bronze Powder Metallurgy (P/M) Bearing (Oil-Impregnated) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B 438 CTG-1001-K30
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B 438 CTG-1001-K30 Precipitation-Hardening SAE USA Specification for Bronze Powder Metallurgy (P/M) Bearing (Oil-Impregnated)

Chemical composition(mass fraction)(wt.%) of the B 438 CTG-1001-K30

C Si Mn P S Ni Cr Al Cu Ti Fe Mo Co
≤0.01 ≤0.05 ≤1.50 ≤0.04 ≤0.01 ≤remaining 0.50 -1.50 0.10 -0.50 ≤0.50 ≤ ≥ 1.00 -6.00 26.00 -30.00 ≤2.50

Mechanical Properties of steel grade B 438 CTG-1001-K30

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)
646 (≥) 213 (≥) 22 22 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade B 438 CTG-1001-K30

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
24 - -     0.23 -  
119 534 - 33.3 231   -  
162 - 42 22.2   421 441

Heat Treatment of steel grade B 438 CTG-1001-K30

Heat treated : 1812°C - 1789°C

Technological Curves of steel grade B 438 CTG-1001-K30

Cross Reference Table (Equivalent Grade) of B 438 CTG-1001-K30

Grade Standard Country Application
B-4
ASTM B-4
ASTM B-4
ASTM B-4

Relevant standard of B 438 CTG-1001-K30

B 438 (2013) Specification for Bronze Powder Metallurgy (P/M) Bearing (Oil-Impregnated) B-438-(2013).pdf
B 438 CTG-1001-K23-MOD B 438 CTG-1001-K34
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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