226M44 - BS 970-1-1983

Grade	226M44
Corresponding Standard	BS 970-1-1983 British Standard Specification for Wrough steels for mechanical and allied engineering purposes Part 1. General inspection and testing procedures and specific requirements for carbon,carbon manganese,alloy and stainless steels
Classification	Carbon Steel

226M44 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	0.4	-	1.3	-	0.22	-	-	-
Maximum Value	0.48	0.25	1.7	0.06	0.3	0.3	0.4	0.15

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

226M44 Mechanical Properties

diameter or across flats d 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
Bright bar; 6≤d≤100	Quenching and Tempering + Turning or Grinding R	700~850	Re: ≥450 Rp0.2: ≥415	≥16	201~255	Izod: ≥20ft.lb KCV: ≥22
Bright bars; 6≤d≤29	Quenching and tempering + turning or grinding S	775~925	Re: ≥525 Rp0.2: ≥495	≥14	223~277	Izod: ≥15ft.lb KCV: ≥16
Bright bars; 6≤d≤13	Quenching and Tempering + Turning or Grinding T®	850~1000	Re: ≥600 Rp0.2: ≥585	≥12	248~302	Izod: ≥15ft.lb KCV: ≥16
Bright bar; 6≤d≤100	Quenching and tempering + cold drawing or Quenching and tempering + cold drawing + grinding R	700~850	Re: ≥525 Rp0.2: ≥435	≥12	© 201~255	Izod: ≥20ft.lb
Bright bars; 6≤d≤29	Quenched and Tempered + Cold Drawing or Quenched and Tempered + Cold Drawing + Grinding S	775~925	Re: ≥575 Rp0.2: ≥520	≥10	© 223~277	Izod: ≥15ft.lb
Bright bars; 6≤d≤13	Quenching and Tempering + Cold Drawing or Quenching and Tempering + Cold Drawing + Grinding T®	850~1000	Re: ≥630 Rp0.2: ≥600	≥9	© 248~302	Izod: ≥15ft.lb

• Re-yield strength；Rp0.2-Stress at 0.2% proof plastic elongation (0.2% proof strength).
• Not specified, σs in the table refers to Re
• ft.lb=1.3558J

226M44 Corresponding Standards(Same grade name, different standards)

1	BS 970-3-1991
	226M44
2	BS 970-1-1983
	226M44

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