C25 1.0406 - DIN 17200-1987

C25 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Pb ^*
Minimum Value	0.22	-	0.4	-	-	0.15
Maximum Value	0.29	0.4	0.7	0.045	0.045	0.33

C25 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	Softening Annealing (G)					≤156
Steel; d≤16	Quenching and Tempering (V)	550~700	≥370	≥19	≥45
Steel; 16<d≤40	Quenching and Tempering (V)	500~650	≥320	≥21	≥45
Flat steel; d≤16	Normalizing (N)	420~570	≥260		Longitudinal ≥25
Flat steel; 16<d≤100	Normalizing (N)	420~570	≥240		≥25
Flat Steel; 100<d≤160	Normalizing (N)	400~550	≥220		≥23

New and Old Grade Replacement List

1 Approximate Comparison Table

International Organization for Standardization	Germany	European Standard		Russia
ISO	DIN EN/DIN	EN	Numerical Grade	GOST
C25	C25	C25	1.0406	25

2 Approximate Comparison Table

C25 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"!