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B.S. 2S.131 Details

B.S. 2S.131 Standard Download

Category	Type	Grade	Designations
Grades	Stainless Steels	2S.131	UK - B.S. , BS 2S 131 - Specification for high thermal expansion steel billets, bars, forgings and parts (620 MPa: limiting ruling section 150 mm)

Elements	Min.（≥）	Max.（≤）
C	0.55	0.70
Si	0.20	0.50
Mn	3.50	5.50
P	-	0.035
S	-	0.025
Cr	3.00	4.00
Ni	11.00	14.00
Mo	-	0.50
W	-	1.00
V	-	0.25

Specification for high thermal expansion steel billets, bars, forgings and parts (620 MPa: limiting ruling section 150 mm)

Proof strength R_p0.2 (MPa)	Tensile strength R_m (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
773 (≥)	328 (≥)	23	13	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	443

Property	Density kg/dm3	Temperature T °C/F	Specific heat J / kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm	Modulus of elasticity kN/mm2
372 (≥)	498 (≥)	24	31	24	Solution and Aging, Annealing, Ausaging, Q+T,etc	434
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
899	941	627

Product type	Products	Dimension	Processes	Deliver Status
Plates / Sheets	Plates / Sheets	0.08-200mm(T)WL	Forging, hot rolling and cold rolling	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar	Round Bar, Flat Bar, Square Bar	Φ8-1200mm*L	Forging, hot rolling and cold rolling, Cast	Black, Rough Turning, Shot Blasting,
Coil / Strip	Steel Coil /Steel Strip	0.03-16.0x1200mm	Cold-Rolled & Hot-Rolled	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes	Seamless Pipes/Tubes, Welded Pipes/Tubes	OD:6-219mm x WT:0.5-20.0mm	Hot extrusion, Cold Drawn, Welded	Annealed, Solution and Aging, Q+T, ACID-WASHED

Grade	Standard	Country	Application
2S.131	B.S.	UK	Specification for high thermal expansion steel billets, bars, forgings and parts (620 MPa: limiting ruling section 150 mm)