YM304

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China GB YM304 镁合金压铸件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: YM304 / YM304

Category	Grade	Standard	Region/Area	Standard Content
Metals	YM304	GB/T 25747	China	镁合金压铸件

Chemical composition(mass fraction)(wt.%) of the YM304

Element	Min	Max	Similar
Zn	0.4500	0.9000	-
Si	-	0.2000	-
Ni	-	0.0100	-
Mn	0.1500	0.4000	-
Mg	-	-	-
Cu	-	0.2500	-
Al	8.5000	9.5000	-
Zn	0.3500	1.0000	-
Si	-	0.5000	-
Ni	-	0.0300	-
Mn	0.1300	0.5000	-
Mg	-	-	-
Cu	-	0.3500	-
Al	8.3000	9.7000	-

Mechanical Properties of steel grade YM304

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)
975 (≥)	979 (≥)	23	43	24	Solution and Aging, Annealing, Ausaging, Q+T,etc	433

Physical Properties of steel grade YM304

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
11	-	-			0.12	-
325	834	-	43.3	141		-
298	-	22	34.2			214	142

Heat Treatment of steel grade YM304

Heat treated : 1831°C - 1714°C

Technological Curves of steel grade YM304

No Curve

Cross Reference Table (Equivalent Grade) of YM304

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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