C68700

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China GB C68700 加工铜及铜合金牌号和化学成分 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C68700 / C68700

Category	Grade	Standard	Region/Area	Standard Content
Metals	C68700	GB/T 5231	China	加工铜及铜合金牌号和化学成分

Chemical composition(mass fraction)(wt.%) of the C68700

Element	Min	Max	Similar
Zn	-	-	-
Pb	-	0.0700	-
Others total	-	0.6000	-
Fe	-	0.0600	-
Cu	76.0000	79.0000	-
As	0.0200	0.0600	-
Al	1.8000	2.5000	-

Mechanical Properties of steel grade C68700

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)
287 (≥)	697 (≥)	24	32	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	444

Physical Properties of steel grade C68700

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
44	-	-			0.11	-
767	941	-	31.3	423		-
216	-	12	41.2			444	413

Heat Treatment of steel grade C68700

Heat treated : 1436°C - 1658°C

Technological Curves of steel grade C68700

No Curve

Cross Reference Table (Equivalent Grade) of C68700

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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