INCOLOY 800H & 800HT_SHANGHAI KANGSHENG AVIATION MATERIALS TECHNOLOGY CO., LTD.

INCOLOY 800H & 800HT

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Product Description

Nickel-iron-chromium alloys that have the same basic composition as INCOLOY alloy 800 but with significantly higher creep-rupture strength. The higher strength results from close control of the carbon, aluminum and titanium contents in conjunction with a hightemperature anneal. Used in chemical and petrochemical processing, power plants for super-heater and reheater tubing, industrial furnaces and heat-treating equipment.

STANDARD PRODUCT FORMS

Pipe, tube, sheet, strip, plate, round bar, flat bar, forging
stock, hexagon and wire.

MAJOR SPECIFICATIONS

UNS N08810, N08811
BS 3072, 3073, 3074, 3075,
3076 (NA15)
ASTM A 240, A 480, B 163,
B 366, B 407 – 409,
B 514, B 515, B 564,
B 751, B 775, B 829
ASME SA-240, SA-480,
SB-163, SB-366,
SB-407 – SB-409, SB-514,
SB-515, SB-564, SB-751,
SB-775, SB-829
ASME Code Cases 1325,
1949, 1983, 2339,
N-201, N-254
DIN 17459, 17460
Werkstoff Nr. 1.4876, 1.4958,
1.4959
VdTÜV 412, 434
EN 10028-7, 10095
ISO 4955A, 6207, 6208,
9723, 9725

LIMITING CHEMICAL COMPOSITION, %

800H

Ni........30.0–35.0
Fe.........39.5 min.
Cr.......19.0–23.0
C.........0.05–0.10
Al........0.15–0.60
Ti............0.15–0.60
Al+Ti......0.30–1.20

800HT

Ni........30.0–35.0
Fe.........39.5 min.
Cr.......19.0–23.0
C.........0.06–0.10
Al........0.25–0.60
Ti............0.25–0.60
Al+Ti......0.85–1.20
* By special agreement, this product can be supplied with
aluminum + titanium limited to 0.4 – 0.7%.

PHYSICAL CONSTANTS AND THERMAL PROPERTIES

Density, Ib/in³ (g/cm³)............................................ 0.287 (7.94)
Melting Range, °F (°C)..............2475 – 2525 (1357 – 1385)
Specific Heat, Btu/lb•°F (J/kg•°C)......................... 0.11 (460)
Curie Temperature, °F (°C)....................................-175 (-115)
Permeability at 200 Oersted (15.9 kA/m).....................1.014
Coefficient of Expansion, 10^-6 in/in•°F (μm/m•°C)
70-200°F (20-100°C)...................... 7.9 (14.4)
Thermal ConductivityA, Btu•in/ft²•h•°F (W/m•°C)........80 (11.5)
Electrical Resistivity^A, ohm•circ mil/ft (μΩ•m)....... 595 (0.989)

TYPICAL MECHANICAL PROPERTIES