E255

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EU EN E255 精密应用钢管 - 交货技术条件 - 第1部分：冷拔无缝钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: E255 / E255

Category	Grade	Standard	Region/Area	Standard Content
Metals	E255	EN 10305-1	EU	精密应用钢管 - 交货技术条件 - 第1部分：冷拔无缝钢管

Chemical composition(mass fraction)(wt.%) of the E255

Element	Min	Max	Similar
Si	-	0.3500	-
S	-	0.0250	-
P	-	0.0250	-
Mn	0.4000	1.1000	-
C	-	0.2100	-

Mechanical Properties of steel grade E255

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)
449 (≥)	541 (≥)	31	22	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	314

Physical Properties of steel grade E255

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
32	-	-			0.21	-
734	253	-	23.3	322		-
596	-	23	23.2			314	124

Heat Treatment of steel grade E255

Heat treated : 1782°C - 1144°C

Technological Curves of steel grade E255

No Curve

Cross Reference Table (Equivalent Grade) of E255

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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