• 
  • Your satisfaction
  • General overview
  • Company history
  • Innovation
  • Production system
  • Quality
  • Sustainable development
  • HR Development
  • Aubert & Duval sites
  • Sales Network
  • Downloads
• 
  • Designing
  • Melting
  • Rolling
  • Open-die forging
  • Closed-die forging
  • Machining
  • Quality controls
  • Heat treatment
  • Custom heat treatment
  • Foundry
  • Powder metallurgy
• 
  • Your challenges
  • Aerospace
  • Energy
  • Transportation
  • Tooling
  • Specialties
• 
  • Products and parts
  • Our materials
• 
  • Partnership
  • Technical support
  • Distribution and Logistics
  • Custom heat treatment
• 
• 
  • Contact form
  • Sales Network

Nuances

Stainless steels

• Martensitic stainless steels
• Austenitic stainless steels
  

  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 (%)
  												M30NW	X4CrNiMoN21‑9‑4			≤ 0.06	9.50	21.00		H	860	450	40
  SC2104	X2CrNiMoN17‑13‑3	UNS: S31654	316LN	< 0.03	14.00	17.00	2.80	H	630	300	45
  SC2118	X2CrNiMo17‑12		Z2CND18‑12+N2	< 0.035	12.00	17.50	2.50	H	550	240	40
  X18BC	X2CrNi19‑11	UNS: S30403	304L	< 0.03	11.00	19.00		H	550	190	60
  X18MBC	X2CrNiMo17 ‑12‑2	UNS: S31603 AISI: 316L	316L	< 0.03	12.00	17.00	2.50	H	550	200	60
  X18PA	X6CrNiTi18‑10	UNS: S32100 AISI: 321	321	< 0.08	11.00	18.00		H	600	220	50
  M25W	X2CrNiMo18‑14‑3	UNS: S31673		< 0.03	14.00	18.00	3.00	H	540	210	60
  NYB66	X1CrNiMoWN24‑22‑6	UNS: S31266		< 0.03	22.00	24.00	5.50	H	> 800	> 420	> 50
  SC2109	X2CrNi18‑9			< 0.03	10.00	19.00		H	550	220	45
  NY810	X10NiCrAlTi32‑21	UNS: N08810	INCOLOY 800H	≤ 0.10	32.00	21.00		H	≥ 448	≥ 172	≥ 30

  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
  				Standard	Standard	Symbol	Numerical	Standard	Standard	Standard	Grade	Standard	Standard	Standard
  M30NW	X4CrNiMoN21‑9‑4								BS7252 part 9			F1586
  SC2104	X2CrNiMoN17‑13‑3	UNS: S31654	316LN			X2CrNiMoN17‑13‑3	1.4429
  SC2118	X2CrNiMo17‑12		Z2CND18‑12+N2
  X18BC	X2CrNi19‑11	UNS: S30403	304L	Z2CN18‑10	FE‑PA11, FE‑PA3901 X1CrNi18‑10	X2CrNi19‑11	1.4306			5511 5647	F304L 304L 304L 304L 304L	A182 A276 A314 A473 A479
  X18MBC	X2CrNiMo17 ‑12‑2	UNS: S31603 AISI: 316L	316L			X2CrNiMo17 ‑12‑2	1.4404			5507 5653	F316L 316L 316L 316L 316L	A182 A276 A314 A473 A479
  X18PA	X6CrNiTi18‑10	UNS: S32100 AISI: 321	321	Z10CNT18‑11	FE‑PA13	X6CrNiTi18‑10 X8CrNiTi18‑10	1.4541 1.4878	1.4544	S129	5645	321 321 321 321 F321	A276 A314 A473 A479 A182
  M25W	X2CrNiMo18‑14‑3	UNS: S31673				X2CrNiMo18‑14‑3	1.4435					F138 F139
  NYB66	X1CrNiMoWN24‑22‑6	UNS: S31266
  SC2109	X2CrNi18‑9					X2CrNi18‑9	1.4307
  NY810	X10NiCrAlTi32‑21	UNS: N08810	INCOLOY 800H			X10NiCrAlTi32‑21	1.4876

  A&D Grade	Specifications			Mechanical properties
  	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
  M30NW	X4CrNiMoN21‑9‑4			H	860	450	40
  SC2104	X2CrNiMoN17‑13‑3	UNS: S31654	316LN	H	630	300	45	180
  SC2118	X2CrNiMo17‑12		Z2CND18‑12+N2	H	550	240	40	160
  X18BC	X2CrNi19‑11	UNS: S30403	304L	H	550	190	60	250
  X18MBC	X2CrNiMo17 ‑12‑2	UNS: S31603 AISI: 316L	316L	H	550	200	60	200
  X18PA	X6CrNiTi18‑10	UNS: S32100 AISI: 321	321	H	600	220	50	190
  M25W	X2CrNiMo18‑14‑3	UNS: S31673		H	540	210	60	250
  NYB66	X1CrNiMoWN24‑22‑6	UNS: S31266		H	> 800	> 420	> 50
  SC2109	X2CrNi18‑9			H	550	220	45	130
  NY810	X10NiCrAlTi32‑21	UNS: N08810	INCOLOY 800H	H	≥ 448	≥ 172	≥ 30

  A&D Grade	Specifications			Chemical composition
  	European standard	USA	Common designation	C	Ni	Cr	Mo	Mn	Ti	Co	Al	N	W
  M30NW	X4CrNiMoN21‑9‑4			≤ 0.06	9.50	21.00		4.00				0.40
  SC2104	X2CrNiMoN17‑13‑3	UNS: S31654	316LN	< 0.03	14.00	17.00	2.80					0.15
  SC2118	X2CrNiMo17‑12		Z2CND18‑12+N2	< 0.035	12.00	17.50	2.50			< 0.20		< 0.08
  X18BC	X2CrNi19‑11	UNS: S30403	304L	< 0.03	11.00	19.00
  X18MBC	X2CrNiMo17 ‑12‑2	UNS: S31603 AISI: 316L	316L	< 0.03	12.00	17.00	2.50
  X18PA	X6CrNiTi18‑10	UNS: S32100 AISI: 321	321	< 0.08	11.00	18.00			> 5 x C
  M25W	X2CrNiMo18‑14‑3	UNS: S31673		< 0.03	14.00	18.00	3.00
  NYB66	X1CrNiMoWN24‑22‑6	UNS: S31266		< 0.03	22.00	24.00	5.50					0.50	2.00
  SC2109	X2CrNi18‑9			< 0.03	10.00	19.00				< 0.20		< 0.08
  NY810	X10NiCrAlTi32‑21	UNS: N08810	INCOLOY 800H	≤ 0.10	32.00	21.00			0.60		0.40

  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

  
  
• Ferritic stainless steels
• Stainless steels with structural hardening
• Stainless steels for high temperatures