B684 85Pt-15Ir

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America ASTM B68485Pt-15Ir 铂铱电接触材料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B68485Pt-15Ir / B684 85Pt-15Ir

Category	Grade	Standard	Region/Area	Standard Content
Metals	B684 85Pt-15Ir	ASTM B684	America	铂铱电接触材料

Chemical composition(mass fraction)(wt.%) of the B684 85Pt-15Ir

Element	Min	Max	Similar
Total Others	-	0.2000	-
Tot. other	-	0.1000	-
Pt	-	-	-
Others total	-	0.1000	-
Others each	-	0.0100	-
Other	-	0.0200	-
Ir	14.5000	15.5000	-
Fe	-	0.0150	-

Mechanical Properties of steel grade B684 85Pt-15Ir

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)
686 (≥)	746 (≥)	21	14	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	242

Physical Properties of steel grade B684 85Pt-15Ir

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
22	-	-			0.42	-
538	116	-	34.3	422		-
994	-	41	14.2			141	242

Heat Treatment of steel grade B684 85Pt-15Ir

Heat treated : 1325°C - 1988°C

Technological Curves of steel grade B684 85Pt-15Ir

No Curve

Cross Reference Table (Equivalent Grade) of B684 85Pt-15Ir

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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