B439

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China GB B439 不锈钢焊丝和焊带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B439 / B439

Category	Grade	Standard	Region/Area	Standard Content
Metals	B439	GB/T 29713	China	不锈钢焊丝和焊带

Chemical composition(mass fraction)(wt.%) of the B439

Element	Min	Max	Similar
C	-	0.0400	-
Si	-	0.8000	-
Mn	-	0.8000	-
P	-	0.0300	-
S	-	0.0300	-
Cr	17.0000	19.0000	-
Ni	-	0.6000	-
Mo	-	0.5000	-
Cu	-	0.7500	-
Ti	-	1.1000	-

Mechanical Properties of steel grade B439

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
438 (≥)	578 (≥)	12	14	31	Solution and Aging, Annealing, Ausaging, Q+T,etc	433

Physical Properties of steel grade B439

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
33	-	-			0.43	-
548	983	-	23.3	111		-
481	-	22	11.2			221	122

Heat Treatment of steel grade B439

Heat treated : 1323°C - 1959°C

Technological Curves of steel grade B439

No Curve

Cross Reference Table (Equivalent Grade) of B439

Grade	Standard	Country	Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1

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