Incoloy 800H/UNS N08810/DIN W. Nr. 1.4958
 

Form	ASTM
Rod and bar	B 408
Plate, sheet and strip	A 240, A 480, B 409, B 906
Seamless pipe and tube	B 407, B 829
Welded pipe	B 514, B 775
Welded tube	B 515, B 751
Welding fitting	B 366
Forging	B 564

Chemical composition

%	Fe	Ni	Cr	C	Mn	Si	S	Cu	Al	Ti
min	39.5	30.0	19.0	0.05					0.15	0.15
max		35.0	23.0	0.10	1.50	1.00	0.015	0.75	0.60	0.60

Physical properties

Density	7.94 g/cm3
Melting range	1357-1385℃

Features: Incoloy 800H has a restricted carbon content range of 0.05 to 0.10%, which is in the upper portion of that of Incoloy 800, and is annealed at 1149 to 1177℃ (Incoloy 800 is annealed at 983 to 1038℃). These differences impart it to have higher stress rupture and creep properties than Incoloy 800.
Applications: Chemical and petrochemical process piping, high temperature heat exchangers, furnace components, carburizing equipment, heating-element sheathing, and nuclear power steam superheating tubing.
Note: Incoloy is a registered trademark of the Special Metals Corporation group of companies.

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