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316 S 51

BS 1503

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Standards

BS 1503BS 1503
BS 1502:1982Specification for steels for fired and unfired pressure vessels: sections and bars
BS 3605-1:1991Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
BS 3059-2:1990BS 3059-2
BS 1506:1990Specification for carbon, low alloy and stainless steel bars and billets for bolting material to be used in pressure retaining applications
BS 1501-3:1990Steels for pressure purposes. Specification for corrosion- and heat-resisting steels: plates, sheet and strip

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Chemical composition

Element	min	max
B		0.005
C	0.04	0.1
Cr	16.5	18.5
Cu		0.7
Mn		2
Mo	2	2.5
Nb		0.2
Ni	10.5	13.5
P		0.04
S		0.025
Si		1
Ti		0.1

Mechanical properties

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Reduction of area	Impact energy	Hardness
forgings	≥240	510–710	≥30

Creep

Temperature ℃	Time h	CRS
540	10000.0h	247.0
540	30000.0h	222.0
540	50000.0h	210.0
540	100000.0h	194.0
540	150000.0h	185.0
540	200000.0h	178.0
540	250000.0h	173.0
550	10000.0h	233.0
550	30000.0h	208.0
550	50000.0h	197.0
550	100000.0h	181.0
550	150000.0h	172.0
550	200000.0h	164.0
550	250000.0h	159.0
560	10000.0h	220.0
560	30000.0h	195.0
560	50000.0h	183.0
560	100000.0h	167.0
560	150000.0h	158.0
560	200000.0h	151.0
560	250000.0h	146.0
570	10000.0h	206.0
570	30000.0h	181.0
570	50000.0h	170.0
570	100000.0h	154.0
570	150000.0h	145.0
570	200000.0h	138.0
570	250000.0h	133.0
580	10000.0h	193.0
580	30000.0h	168.0
580	50000.0h	157.0
580	100000.0h	141.0
580	150000.0h	132.0
580	200000.0h	125.0
580	250000.0h	120.0
590	10000.0h	180.0
590	30000.0h	155.0
590	50000.0h	144.0
590	100000.0h	128.0
590	150000.0h	120.0
590	200000.0h	113.0
590	250000.0h	108.0
600	10000.0h	167.0
600	30000.0h	143.0
600	50000.0h	132.0
600	100000.0h	116.0
600	150000.0h	108.0
600	200000.0h	102.0
600	250000.0h	97.0
610	10000.0h	155.0
610	30000.0h	131.0
610	50000.0h	120.0
610	100000.0h	105.0
610	150000.0h	97.0
610	200000.0h	91.0
610	250000.0h	87.0
620	10000.0h	142.0
620	30000.0h	119.0
620	50000.0h	108.0
620	100000.0h	94.0
620	150000.0h	86.0
620	200000.0h	81.0
620	250000.0h	77.0
630	10000.0h	130.0
630	30000.0h	107.0
630	50000.0h	97.0
630	100000.0h	84.0
630	150000.0h	77.0
630	200000.0h	72.0
630	250000.0h	69.0
640	10000.0h	119.0
640	30000.0h	97.0
640	50000.0h	87.0
640	100000.0h	75.0
640	150000.0h	69.0
640	200000.0h	65.0
640	250000.0h	61.0
650	10000.0h	108.0
650	30000.0h	87.0
650	50000.0h	78.0
650	100000.0h	67.0
650	150000.0h	61.0
650	200000.0h	58.0
650	250000.0h	55.0
660	10000.0h	97.0
660	30000.0h	78.0
660	50000.0h	70.0
660	100000.0h	60.0
660	150000.0h	55.0
660	200000.0h	52.0
660	250000.0h	50.0
670	10000.0h	87.0
670	30000.0h	69.0
670	50000.0h	62.0
670	100000.0h	54.0
670	150000.0h	50.0
670	200000.0h	47.0
670	250000.0h	45.0
680	10000.0h	78.0
680	30000.0h	62.0
680	50000.0h	56.0
680	100000.0h	49.0
680	150000.0h	45.0
680	200000.0h	43.0
690	10000.0h	70.0
690	30000.0h	56.0
690	50000.0h	51.0
690	100000.0h	44.0
700	10000.0h	63.0
700	30000.0h	51.0
700	50000.0h	46.0
710	10000.0h	57.0
710	30000.0h	46.0
710	50000.0h	42.0
720	10000.0h	52.0
720	30000.0h	42.0
730	10000.0h	47.0