Cm55 1.1209 - DIN 17200-1987

Cm55 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.52	-	0.6	-	0.02
Maximum Value	0.6	0.4	0.9	0.035	0.035

Cm55 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
Steel; All Sizes	Shearable condition (C)					≤255
Steel; All Sizes	Softening Annealing (G)					≤229
Steel; d≤16	Quenching and Tempering (V)	800~950	≥550	≥12	≥30
Steel; 16<d≤40	Quenching and Tempering (V)	750~900	≥500	≥14	≥35
Steel; 40<d≤100	Quenching and Tempering (V)	700~850	≥430	≥15	≥40
Bars; 16<d≤100	Normalizing (N)	660~830	≥360		≥15
Flat steel; d≤16	Normalizing (N)	630~870	≥370		Longitudinal ≥15
Flat steel; 16<d≤100	Normalizing (N)	630~870	≥330		≥15
Flat Steel; 100<d≤160	Normalizing (N)	610~850	≥300		≥13

New and Old Grade Replacement List

Approximate Comparison Table

International Organization for Standardization	Germany	France	European Standard
ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade
C55M2	Cm55	XC55H1u	C55R	1.1209

Cm55 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"!