Cm22 1.1149 - DIN 17204-1990

Grade	Cm22
Germany W-Nr.	1.1149
Corresponding Standard	DIN 17204-1990 Seamless Circular Tubes Made from Steels for Quenching and Tempering Technical Delivery Conditions
Classification	Carbon Steel

Cm22 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.17	-	0.3	-	0.02
Maximum Value	0.24	0.4	0.6	0.035	0.035

Cm22 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Hot drawn, cold drawn pipes	Annealing					≤156
Pipe material t≤16	Normalizing (N)	420~550	≥260	≥21(long.)；≥19(tr.)
Pipe material 16<t≤40	Normalizing (N)	400~530	≥240	≥24(long.)；≥22(tr.)
Pipe material 40<t≤80	Normalizing (N)	380~510	≥220	≥24(long.)；≥22(tr.)
Pipes t≤8	Quenching + Tempering (V)	500~700	≥340	≥20(long.)；≥18(tr.)	≥50
Pipes; 8< t≤20	Quenching + Tempering (V)	470~670	≥290	≥22(long.)；≥20(tr.)	≥50		* ≥50
Pipes; 20< t≤50	Quenching + Tempering (V)	440~640	≥270	≥22(long.)；≥20(tr.)	≥50		≥40
Pipe; 50<t≤80	Quenching + Tempering (V)	420~620	≥260	≥22(long.)；≥20(tr.)	≥50		≥40

Approximate Comparison Table Non-Alloy Steel for Quenching and Tempering

International Organization for Standardization	Germany	France	European Standard
ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade
C25R	Cm22	XC18u	C22R C22R	1.1149

Cm22 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!