DIN 1.2550

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#DIN # #1.2550

Description

DIN DIN 1.2550 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: DIN 1.2550

Category	Type	Steel Grade	Standard
Steel Grades	Tool Steel	DIN 1.2550	DIN
		JIS SKH9
		DIN 1.2080
		DIN 1.2330
		DIN 1.2341
		DIN 1.2343
		DIN 1.2344
		DIN 1.2363
		DIN 1.2365
		DIN 1.2379
		DIN 1.2510

Chemical composition(mass fraction)(wt.%) of the DIN 1.2550

Element	Weight %
C	0.40-0.55
Mn	0.10-0.40
Si	0.15-1.20
Cr	1.00-1.80
Ni	0.30
Mo	0.50
W	1.50-3.00
V	0.15-0.30
Cu	0.25
P	0.03
S	0.03

Mechanical Properties of steel grade DIN 1.2550

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)
843 (≥)	882 (≥)	43	42	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	331

Physical Properties of steel grade DIN 1.2550

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
23	-	-			0.41	-
766	192	-	31.3	324		-
966	-	23	13.2			423	414

Heat Treatment of steel grade DIN 1.2550

Heat treated : 1413°C - 1117°C

Technological Curves of steel grade DIN 1.2550

No Curve

Cross Reference Table (Equivalent Grade) of DIN 1.2550

Grade	Standard	Country	Application
Q195		China	Engineering and welding
Q215		China	Engineering and welding
Q215 B		China	Engineering and welding
Q235		China	Engineering and welding
Q235 B		China	Engineering and welding
Q235 C		China	Engineering and welding
Q235 D		China	Engineering and welding
Q255 A		China	Engineering and welding
Q255 B		China	Engineering and welding
Q275		China	Engineering and welding
Q235q C		China	Bridge structure with steel
Q235q D		China	Bridge structure with steel
Q345q E		China	Bridge structure with steel
Q345q C		China	Bridge structure with steel
ASTM 1030	ASTM	USA	General use carbon steel bar
UNS G10300	UNS	USA	General use carbon steel bar
ASTM 1005	ASTM	USA	General use carbon steel bar
UNS G10050	UNS	USA	General use carbon steel bar
ASTM 1006	ASTM	USA	General use carbon steel bar
UNS G10060	UNS	USA	General use carbon steel bar

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