Haynes230/UNS N06230/DIN W. Nr. 2.4733
 

Form	ASTM
Rod	B 572
Plate, sheet and strip	B 435, B 906
Seamless pipe and tube	B 622
Welded pipe	B 619, B 775
Welded tube	B 626, B 751
Welding fitting	B 366
Billet and bar for reforging	B 472
Forging	B 564

Chemical composition

%	Ni	Cr	W	Mo	Co	Fe	C	Mn	Si	P	S	Al	La	B
min	balance	20.0	13.0	1.0			0.05	0.30	0.25			0.20	0.005
max		24.0	15.0	3.0	5.0	3.0	0.15	1.00	0.75	0.030	0.015	0.50	0.050	0.015

Physical properties

Density	8.97 g/cm3
Melting range	1301-1371℃

Features: Haynes 230 combines excellent high temperature strength, outstanding resistance to oxidizing environments up to 1149℃ for prolonged exposure, premier resistance to nitriding environments, and excellent long term thermal stability. It has low thermal expansion than most high temperature alloys, and good resistance to grain coarsening with prolonged exposure to high temperatures.
Applications: Gas turbine engine combustion cans, transition ducts, after-burners, flameholders and thermocouple sheaths; high temperature heat exchangers; and industrial furnace heat resistant components.
Note: Haynes and 230 are registered trademarks of Haynes International, Inc.
 
 Seamless Pipe

Product	Size Range
Stainless steel seamless tube & pipe	OD: φ1-φ914.4mm WT:0.2-80mm
U-Tube	OD: φ12-φ38mm WT: 0.5-4mm

Steel Types	Typical Steel Codes（AISI）
Austenitic	TP304/304L, TP304H, TP316/316L, TP316H, TP316Ti, TP321, TP321H, TP347/H, TP347HFG, 904L, TP309S,TP310MoLN,TP310H, TP310S, TP317/17L, TP316LMo≥2.5,S31254,904L; etc
Duplex/Super duplex	S31803; S32205; S31500; S32750; S32760
Nickel-Alloy	UNS N08825, N08020, N08028, N08800,N08810,N08811,N04400,N06600,N06601,N06625,N06690,N06022,N10276,N10665,N10673, etc

Standard Type	Standards
EN	EN10216-5; EN10216-2
DIN	DIN 17456; DIN 17458
ASTM	ASTM A312, A213, A269, A511, A789, A790; B163, B423, B407, B668 ASME SA213, SA312, SA789, SA790; SB163, SB423, SB407, SB668
JIS	JIS G3459; G3463
GOST	GOST 9941; GOST 5632
GB	GB/T14975; GB/T14976; GB13296; GB5310; GB9948