EC439Nb

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America AWS EC439Nb Specification for stainless steel flux cored and metal cored welding electrodes and rods 4th edition and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: EC439Nb / EC439Nb

Category	Grade	Standard	Region/Area	Standard Content
Metals	EC439Nb	AWS A5.22/A5.22M	America	Specification for stainless steel flux cored and metal cored welding electrodes and rods 4th edition

Chemical composition(mass fraction)(wt.%) of the EC439Nb

Element	Min	Max	Similar
Ti	0.1000	0.7500	-
Cu	-	0.7500	-
S	-	0.0300	-
P	-	0.0300	-
Si	-	0.8000	-
Mn	-	0.8000	-
Nb+Ta	0.3200	0.7500	-
Mo	-	0.5000	-
Ni	-	0.6000	-
Cr	17.0000	20.0000	-
C	-	0.0400	-

Mechanical Properties of steel grade EC439Nb

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)
314 (≥)	861 (≥)	23	11	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	324

Physical Properties of steel grade EC439Nb

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
21	-	-			0.33	-
214	938	-	44.3	342		-
327	-	41	41.2			441	432

Heat Treatment of steel grade EC439Nb

Heat treated : 1546°C - 1454°C

Technological Curves of steel grade EC439Nb

No Curve

Cross Reference Table (Equivalent Grade) of EC439Nb

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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