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Stainless steels for high temperatures

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A&D Grade	Specifications			Chemical Composition				Mechanical properties
	European standard	USA	Common designation	C	Ni	Cr	Mo	Heat treatment	UTS (N/mm²)	0,2% YS (N/mm²)	A (%)
	European standard	USA	Common designation	C	Ni	Cr	Mo	Heat treatment	UTS (N/mm²)	0,2% YS (N/mm²)	A (%)	56BI	X22CrMoWV12‑1			0.22		12.00	1.00	T + Rv 720°C	900	700	14
56CW	X8CrCoNiMo10‑6		FV535	0.10		10.50	0.80	T + Rv 615°C	1100	950	14
56T5	X19CrMoNbVN11‑1			0.20		11.00	0.70	T + Rv 675/700°C	1000	800	12
XN26AW	X2NiCrTiMoV25‑15			0.02	26.00	15.00	0.30	H + V 720°C	1000	650	25
XN26TW	X6NiCrTiMoVB25‑15‑2	UNS: S66286	A286	0.05	26.00	15.00	1.25	H + V 720°C	1000	650	25


A&D Grade	Specifications			Main Standards
	European standard	USA	Common designation	AIR	AECMA	NF-EN/NF-EN-ISO/NF-A		WL	BS	AMS	ASTM		SUS	JIS
	European standard	USA	Common designation	Standard	Standard	Symbol	Numerical	Standard	Standard	Standard	Grade	Standard	Standard	Standard
56BI	X22CrMoWV12‑1
56CW	X8CrCoNiMo10‑6		FV535	Z10CKD10	FE‑PM38, FE‑PM1708	X8CrCoNiMo10‑6	1.4911	1.4911	S152
56T5	X19CrMoNbVN11‑1			Z20CDNb11		X19CrMoNbVN11‑1	1.4913
XN26AW	X2NiCrTiMoV25‑15				FE‑PA2602 X4NiCrTiMoV26‑15
XN26TW	X6NiCrTiMoVB25‑15‑2	UNS: S66286	A286	E‑Z6NCT25	FE‑PA2601, FE‑PA92‑HT X6NiCrTiMoV26‑15	X6NiCrTiMoVB25‑15‑2	1.4980	1.4944	HR51, HR650	5731, 5732, 5734, 5737	660	A453


A&D Grade	Specifications			Mechanical properties
A&D Grade	European standard	USA	Common designation	Heat treatment	UTS (N/mm²)	0,2% YS (N/mm²)	A (%)	KCU (J/cm²)	KV (J)	KV -40°C (J)	KV -60°C (J)	Hardness HV	Hardness HRC
56BI	X22CrMoWV12‑1			T + Rv 720°C	900	700	14	40
56CW	X8CrCoNiMo10‑6		FV535	T + Rv 615°C	1100	950	14
56T5	X19CrMoNbVN11‑1			T + Rv 675/700°C	1000	800	12
XN26AW	X2NiCrTiMoV25‑15			H + V 720°C	1000	650	25	80
XN26TW	X6NiCrTiMoVB25‑15‑2	UNS: S66286	A286	H + V 720°C	1000	650	25	80


A&D Grade	Specifications			Chemical composition
A&D Grade	European standard	USA	Common designation	C	Ni	Cr	Mo	V	Ti	Co	Nb	W
56BI	X22CrMoWV12‑1			0.22		12.00	1.00	0.30				0.50
56CW	X8CrCoNiMo10‑6		FV535	0.10		10.50	0.80	0.30		6.00	0.50
56T5	X19CrMoNbVN11‑1			0.20		11.00	0.70	0.18			0.40
XN26AW	X2NiCrTiMoV25‑15			0.02	26.00	15.00	0.30		2.00
XN26TW	X6NiCrTiMoVB25‑15‑2	UNS: S66286	A286	0.05	26.00	15.00	1.25	0.25	2.00

Key to heat treatment symbols
Solution treated	H	Annealed	R
Thermo-mechanical treatment	TM	Quenched and tempered	T+RV
Sub-zero treatment	F	Solution treated and aged	H+V

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