W91

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China GB W91 照明及电子设备用钨丝 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: W91 / W91

Category	Grade	Standard	Region/Area	Standard Content
Metals	W91	GB/T 23272	China	照明及电子设备用钨丝

Chemical composition(mass fraction)(wt.%) of the W91

Element	Min	Max	Similar
Sb	-	0.0005	-
Pb	-	0.0005	-
Cu	-	0.0005	-
Cd	-	0.0005	-
Bi	-	0.0005	-
Si	-	0.0010	-
Ti	-	0.0010	-
Ni	-	0.0010	-
Na	-	0.0010	-
Mn	-	0.0010	-
Mg	-	0.0010	-
Cr	-	0.0010	-
Ca	-	0.0010	-
As	-	0.0010	-
Sn	-	0.0005	-
Co	-	0.0010	-
Mo	-	0.0030	-
Al	-	0.0015	-
Fe	-	0.0020	-
K	0.0080	0.0100	-
W	99.9500	-	-

Mechanical Properties of steel grade W91

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)
359 (≥)	132 (≥)	31	22	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	242

Physical Properties of steel grade W91

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
43	-	-			0.13	-
878	496	-	21.3	414		-
168	-	41	32.2			312	422

Heat Treatment of steel grade W91

Heat treated : 1428°C - 1952°C

Technological Curves of steel grade W91

No Curve

Cross Reference Table (Equivalent Grade) of W91

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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