EX-Ten 55

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#EX-Ten #55

Description

EX-Ten 55 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: EX-Ten 55

Category	Type	Steel Grade
Steel Grades	Carbon Steel	EX-Ten 55
		Dofascoloy 50W
		Dofascoloy 55W
		Dofascoloy 60W
		Dofascoloy 65W
		Dofascoloy 70W
		Dofascoloy 80W
		Dofascoloy P
		Dual Phase 80
		EX-Ten 45
		EX-Ten 50

Chemical composition(mass fraction)(wt.%) of the EX-Ten 55

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.25	0.3	1.35
Mo	Al	Cu	Nb	Ti	V	Ce
					≥0.02
N	Co	Pb	B	Other
0.015		≥0.01

Mechanical Properties of steel grade EX-Ten 55

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)
149 (≥)	768 (≥)	34	44	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	331

Physical Properties of steel grade EX-Ten 55

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
21	-	-			0.41	-
553	432	-	33.3	233		-
324	-	13	33.2			123	222

Heat Treatment of steel grade EX-Ten 55

Heat treated : 1375°C - 1568°C

Technological Curves of steel grade EX-Ten 55

No Curve

Cross Reference Table (Equivalent Grade) of EX-Ten 55

Grade	Standard	Country	Application
Q255 A		China	Engineering and welding
Q255 B		China	Engineering and welding
SM55		China	Plastic mould with flat steel
1.1554	DIN	Germany	Carbon tool steel
C55W	DIN	Germany	Carbon tool steel
X155CrVMo12-1	DIN	Germany	Cold working alloy tool steel
1.2550	DIN	Germany	Cold working alloy tool steel
1.2552	DIN	Germany	Cold working alloy tool steel
55NiCrMoV6	DIN	Germany	Cold working alloy tool steel
55NiCr10	DIN	Germany	Cold working alloy tool steel
1.3255	DIN	Germany	High-speed tool steel
1.3355	DIN	Germany	High-speed tool steel
SKH55	JIS	Japan	W-phase system high-speed tool steel
55CrNiMoV 4	AFNOR	France	Carbide for cutting tools
55CrNiMoV 4	AFNOR	France	Carbide for cutting tools
55NiCrMoV7	AFNOR	France	Carbide for cutting tools
55NiCrMoV7	AFNOR	France	Carbide for cutting tools
SS14:2550	SS	Sweden	Carbide for cutting tools
32CrMoV12-28			Carbide for cutting tools
32CrMoV12-28			Carbide for cutting tools

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