C25M2 - JIS G 7105-2000

Grade	C25M2
Corresponding Standard	JIS G 7105-2000 Heat-Treatable Steels, Alloy Steels and Free-Cutting Steels — Part 18 : Bright Products Of Unalloyed and Low Alloy Steels
Classification	Carbon Steel
Properties	Carburizing Ability

C25M2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.22	0.1	0.4	-	0.02
Maximum Value	0.29	0.4	0.7	0.035	0.04

◎ Steels with machinability which has been improved either by the addition of lead or by higher sulfur levels up to about 0.100 % (m/m) S (including controlled sulfide morphology) may be available on request.

C25M2 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW	Impact Energy Absorption KV2 J
t≤5	TC	≥610	≥490	≥5
5＜t≤10	TC	≥580	≥445	≥6
10＜t≤16	TC	≥530	≥400	≥7
16＜t≤25	TC	≥510	≥370	≥8
25＜t≤40	TC	≥490	≥350	≥9
40＜t≤100	TC	≥440	≥230	≥10
t≤100	TC+TA, P+TA or G+TA				≥156
t≤16	TC+TN, P+TN or G+TN	≥470	≥260	≥22
16＜t≤100	TC+TN, P+TN or G+TN	≥440	≥230	≥23
t≤16	TC+TQ+TT℗, P+TQ+TT or G+TQ+TT	550~700	≥370	≥19		KU: ≥35 KV: ≥45
16＜t≤40	TC+TQ+TT℗, P+TQ+TT or G+TQ+TT	500~650	≥320	≥21		KU: ≥35 KV: ≥45
40＜t≤250	TC+TQ+TT, P+TQ+TT or G+TQ+TT	Be agreed	Be agreed	Be agreed		Be agreed
100＜t≤250	TC or TC+TN, P+TN or G+TN	Be agreed	Be agreed	Be agreed
t≤250	TC+TA, P+TA or G+TA				Be agreed

C25M2 Corresponding Standards(Same grade name, different standards)

1	ISO 683-18-1996
	C25M2
2	ISO 683-1-1987
	C25M2
3	JIS G 7105-2000
	C25M2

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