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1.0503

CK45

This grade is water-hardening steel suitable for small parts of moderate strength. This grade has a slightly greater hardenability and strength. It has moderate strength and hardness in the as-rolled condition, and can be strengthened and hardened by cold work. Machinability is only fair, as is weldability. Precautions must be taken when welding to avoid cracking from cooling too rapidly

Standard Designation	Grade, Class, Type, Symbol or Name	Steel Number	UNS Number	Product Form/Heat Treatment	Thickness		Yield Strength, min		Tensile Strength, min		Elongation, min, %	Other
Standard Designation	Grade, Class, Type, Symbol or Name	Steel Number	UNS Number	Product Form/Heat Treatment	t, mm	t, in.	N/mm² or MPa	ksi	N/mm² or MPa	ksi	Elongation, min, %	Other
EN 10250-2:1999	C45	1.0503	—	N or NT	≤ 100	—	305	—	580	—	16	—
					100 < t ≤ 250	—	275	—	560	—	16	18 J at 23°C
					250 < t ≤ 500	—	240	—	540	—	16	15 J at 23°C
					500 < t ≤ 1000	—	230	—	530	—	15	12 J at 23°C
	C45E	1.1191	—	N or NT	≤ 100	—	305	—	580	—	16	—
					100 < t ≤ 250	—	275	—	560	—	16	18 J at 23°C
					250 < t ≤ 500	—	240	—	540	—	16	15 J at 23°C
					500 < t ≤ 1000	—	230	—	530	—	15	12 J at 23°C

Composition:

%C	%Si	%Mn	%P	%S	%Cr	%Mo	%Ni	% Others
0,42-0,50	≤0,40	0,50-0,80	0,045	0,045	≤0,40	0,10	≤0,40	Cr+Mo+Ni ≤ 0,63

Hot working:

Forging temperature range: 1100-850℃

Note: Heat to 1200 ℃. Do not forge below 850.

Heat treatment:

Soft annealing ℃	HB 30-soft annealed	Normalizing ℃	Hardening temperature for quenching in Water ℃	Hardening temperature for quenching in Oil ℃	Tempering temperature ℃
650-700	207	840-870	820-850	830-860	540-680

Main application:

Arbors, spindles, axles, bolts

Shape of product:

Round, flat, step shape, ring, disc, shaft, other shape depend on customer needs

شماره تماس :

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