230M07 - BS 970-3-1991

Grade	230M07
Corresponding Standard	BS 970-3-1991 Specification for wrought steel for machanical and allied engineering purposes part 3:bright bars for general engineering purposes
Classification	Carbon Steel
Properties	Machinability

230M07 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	-	-	0.9	-	0.25
Maximum Value	0.15	0.05	1.3	0.09	0.35

• For older grades of stainless steel, see Table 2 of standard BS 970-4-1970

230M07 Mechanical Properties

condition	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
6≤d＜100	Hot rolling + turning or grinding	≥360	≥215	≥22	≥103	-
6≤d≤13	Hot Rolling + Cold Drawing or Hot Rolling + Cold Drawing + Grinding	≥480	≥400	≥6	-	-
13＜d≤16	Hot Rolling + Cold Drawing or Hot Rolling + Cold Drawing + Grinding	≥460	≥380	≥7	-	-
16＜d≤40	Hot Rolling + Cold Drawing or Hot Rolling + Cold Drawing + Grinding	≥430	≥340	≥8	-	-
40＜d≤63	Hot Rolling + Cold Drawing or Hot Rolling + Cold Drawing + Grinding	≥390	≥280	≥9	-	-
63＜d≤76	Hot Rolling + Cold Drawing or Hot Rolling + Cold Drawing + Grinding	≥370	≥240	≥10	-	-

Approximate Comparison Table Free-Cutting Structural Steel

230M07 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"!