X 70 CrMnNiN 21 6

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Italy UNI X70CrMnNiN216 Hot rolled finished special alloyed steel products. Round bars for internal combustion engine valves and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X70CrMnNiN216 / X 70 CrMnNiN 21 6

Category	Grade	Standard	Region/Area	Standard Content
Metals	X 70 CrMnNiN 21 6	UNI 3992	Italy	Hot rolled finished special alloyed steel products. Round bars for internal combustion engine valves

Chemical composition(mass fraction)(wt.%) of the X 70 CrMnNiN 21 6

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade X 70 CrMnNiN 21 6

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)
549 (≥)	136 (≥)	43	21	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	242

Physical Properties of steel grade X 70 CrMnNiN 21 6

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	-	-			0.31	-
136	966	-	14.3	422		-
888	-	41	44.2			132	111

Heat Treatment of steel grade X 70 CrMnNiN 21 6

Heat treated : 1214°C - 1595°C

Technological Curves of steel grade X 70 CrMnNiN 21 6

No Curve

Cross Reference Table (Equivalent Grade) of X 70 CrMnNiN 21 6

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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