28Mn6 - JIS G 7105-2000

Grade	28Mn6
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	Alloy Steel
Properties	Carburizing Ability

28Mn6 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.25	0.1	1.3	-	-
Maximum Value	0.32	0.4	1.65	0.035	0.035

◎ 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.

28Mn6 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≤16	TC	≤920
16＜t≤40	TC	≤900
40＜t≤80	TC	≤880
t≤80	TC+TA, P+TA or G+TA				≤223
t≤16	TC+TQ+TT℗, P+TQ+TT or G+TQ+TT	800~950	≥590	≥13		KU: ≥25 KV: ≥35
16＜t≤40	TC+TQ+TT℗, P+TQ+TT or G+TQ+TT	700~850	≥490	≥15		KU: ≥30 KV: ≥40
40＜t≤80	TC+TQ+TT℗, P+TQ+TT or G+TQ+TT	650~800	≥440	≥16		KU: ≥30 KV: ≥40

28Mn6 Corresponding Standards(Same grade name, different standards)

1	ISO 683-18-1996
	28Mn6
2	DIN 17200-1987
	28Mn6 1.1170
3	ISO 683-1-1987
	28Mn6 28Mn6H 28Mn6HH 28Mn6HL
4	EN 10083-2-2006
	28Mn6 1.1170
5	EN 10250-2-2000
	28Mn6 1.1170
6	DIN 17204-1990
	28Mn6 1.1170
7	ISO 683-1-2016
	28Mn6
8	DIN EN ISO 683-1-2018
	28Mn6
9	ISO 683-18-2014
	28Mn6
10	EN ISO 683-1-2018
	28Mn6 1.1170
11	NF EN 10083-2-2006
	28Mn6 1.1170
12	JIS G 7105-2000
	28Mn6

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