Material No.: 1.4958

Description

EN symbol (short)	X5NiCrAlTi31-20
Material No.	1.4876 H
Alloy	800 H
UNS	N 08810
AFNOR	NF EN 10088-1 (06/2005)
BS	NA 15(H)
Registered work's label	Nicrofer®3220H

Density kg/dm³	7,94
Hardness
Composition	chromium nickel steel
Category	Heat resistant steels and alloys
Structure	austenitic

Chemical Composition

		C	Si	Mn	P	S	Al	Co	Cr	Cu	N	Nb	Ni	Ti	Al+Ti	Fe
1.4958	Min %	0,03					0,20		19,00				30,00	0,20
1.4958	Max %	0,08	0,70	1,50	0,015	0,010	0,50	0,50	22,00	0,50	0,030	0,10	32,50	0,50
(Key to steel 2010) gem.DIN EN 10028-7+DIN EN 10216-5 (Ni+Co) 30,0-32,5%;(Al+Ti)<=0,70%
1.4876 H	Min %	0,030							19,00				30,00
1.4876 H	Max %	0,08	0,70	1,50	0,015	0,010			22,00	0,50		0,10	32,00		0,70
DIN EN 10302
alloy 800 H	Min %
alloy 800 H	Max %
N 08810	Min %	0,05					0,15		19,0				30,0	0,15		39,5
N 08810	Max %	0,10	1,0	1,5		0,15	0,60		23,0	0,75			35,0	0,60
ASTM B 407 (N08810 -Alloy 800H)

Physical properties

Property	Value
Density: kg/dm³	7,94
Permeabilität bei 20°C	1,01
elasticity modulus (N/mm²) / ksi	194 /28,1

Temperature T °C/F (°C/F)	Specific heat J / kgK (Btu / lb °F)	Thermal conductivity W/mK (Btu·in / ft²·h·°F)	Electric resistance µΩ · cm (Ω circ mill / ft)	Modulus of elasticity kN/mm² (10³ ksi)	Expansion rate from 70°F bis T 10^-6 / K (10^-6 / °F)
20 / 68	472 (--)	11,5 (--)	101 (--)	194 (--)
100 / 212	501 (--)	13,1 (--)	104 (--)	189 (--)	15,1 (--)
200 / 392	525 (--)	14,8 (--)	108 (--)	183 (--)	15,7 (--)
400 / 752	555 (--)	18,1 (--)	115 (--)	170 (--)	16,6 (--)
600 /1112	604 (--)	21,2 (--)	120 (--)	156 (--)	17,4 (--)
700 / 1292	610 (--)	22,8 (--)	122 (--)	149 (--)	17,7 (--)
800 / 1472	609 (--)	24,3 (--)	124 (--)	141(--)	18,0 (--)
900 / 1652	615 (--)	25,7 (--)	126 (--)	134 (--)	18,3 (--)
1000 / 1832	641(--)	27,3 (--)	127 (--)	127 (--)	18,6 (--)
Bem4 DE

Temp.	Creep strain limit	Creep strain limit	Creep rupture strength	Creep rupture strength	Creep rupture strength
°C /°F	lösungsgeglüht	lösungsgeglüht	lösungsgeglüht	lösungsgeglüht	lösungsgeglüht
	10 000 h/100 000h Rp1,0- N/mm²	10 000 h N/mm²	100 000h N/mm²	200 000h N/mm²	200 000h N/mm²
600	115 / 85	140	95	83
620	102 / 74	118	78	68
650	84 / 59	97	63	55
660	78 / 55	91	59	52
670	73 / 51	85	55	48
680	68 / 47	80	52	45
690	63 / 43	74	48	41
700	58 /40	69	44	38
Bem2 EN

Mechanical properties (20°C / 68°F)

Yield strength Rp 0,2 lengthwise transverse	>=155 >=170
Tensile strenght Rm (MPa)	500-750
Elongation (A50) quer %	30
Notched impact strength (ISO-V/Charpy-V) 20°C	<=120J
Values apply to solution annealed state and for defined measurements

Temparature information

Application area
Operation temperature	1292 ºF to 1832 ºF	(when 1112°F below use in soft annealed state)

Solution heat treatment
Working temperature	2102 ºF to 2192 ºF
Explanation report	pipes < 50mm

Working temperature	2012 ºF to 2192 ºF
Processing informations	cooldown:Water/air

Solution heat treatment
Working temperature	1382 ºF to 2102 ºF	soft-annealed

finishing treatment (Annealing)
Working temperature	1652 ºF to 1742 ºF
Processing informations	air (<= 30min)

soft-annealed
Working temperature	ºF to 2102 ºF

Standards / information

Standards	Desciption
ASTM A 240	sheet metal and ribbons from stainless Cr and Ni pressure containers
ASTM B 163	Standard Specifications for seamless nickel and nickel alloy condensers and heat-exchanger tubes
ASTM B 407	Standard Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube
ASTM B 408	Standard Specification for Nickel-Iron-Chromium Alloy Rod and Bar
ASTM B 409	Standard Specification for Nickel-Iron-Cromium Alloy metal sheets
ASTM B 564-06	Standard Specification for Nickel Alloy Forging
DIN EN 10028-7 (02/2008)	flat products made from steel for pressure tanks Part 7: Stainless steel
DIN EN 10088-1 (09/2005)	Stainless steels Part 1: List of stainless steels
DIN EN 10216-5 (11/2004+B1)	Seamless steel tubes under compression load Stainless steel tubes
DIN EN 10302 (06/2008)	heat-resisting steel nickel-cobalt alloy
SEW 310 (08/1992)	physical properties of steel
VdTÜV Wbl.412 )	X10NiCrAlTi32-20 H with increased creep rupture strength

Process information

Welding
- Type	covered electrode No translation! manual arc
- Add. material	2.4648;2.4627 2.4806

Main fields of application

Details of application	metallurgic stability during uninterrupted service in high temeratures
Certifications
Steam boiler construction	pressure tanks
Kohlevergasungsanlagen
Chemical Industry	pyrolisis tubes in ethene furnaces conduits
Environmental technology	waste-to-energy plants

Range of products

Product type	Product
Plates / Sheets	plates/sheets plate/sheet cuts
Fittings	welded elbows welded reductions Welded T-pieces seamless elbows seamless reductions seamless T-pieces Other Fittings a.o. Weldolets, Nipples
Flanges / Collars / Flared tube ends	various flanges (weld neck flange,blind flange etc.)
Bumped boiler ends / caps / round blanks	from sheets
Pipes / Tubes	welded pipes/tubes seamless pipes/tubes
Bar steel	flat steel section steel round bar steel

Liability exclusion

All aforementioned specifications serve as a general orientation and have to be reviewed depending on the conditions of use.
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