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| Mailing Address |
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UKF Stainless Ltd
12 Buntsford Park Road
Bromsgrove
Worcestershire
B60 3DX
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| Telephone / Fax |
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| Tel: |
01527 578686 |
| Fax: |
01527 837792 |
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| Email |
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 info@ukfstainless.co.uk |
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N08810
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Introduction:
This 'H' grade has a controlled carbon content (0.05-0.1%)
to improve the creep strength and stress-rupture properties
at temperatures over 600°C (ASME II). Proprietary
grades have additional controls. Like N08800,
high toughness is maintained even on cold worked material
over 80J after 12000h (71 weeks) at 540 and 650°C.
This alloy has similar corrosion behaviour to N08800.
Metallurgy:
The chromium content is balanced by sufficient nickel
to maintain a tough austenitic structure. Nickel-aluminium
and nickel-titanium precipitates strengthen the alloy
during prolonged exposure to high
temperatures. The high nickel content aids its good
resistance to high temperature oxidation, carburization,
nitriding and relative freedom from stress corrosion
cracking.
Composition:
| Element |
Minimum
(%) |
Maximum
(%) |
| Chromium |
19.00 |
23.00 |
| Nickel |
30.00 |
35.00 |
| Aluminium |
0.15 |
0.60 |
| Manganese |
- |
1.50 |
| Carbon |
0.05 |
0.10 |
| Copper |
- |
0.75 |
| Titanium |
0.15 |
0.60 |
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Similiar Specifications:
ASTM UNS N08810
19-23%Cr, 30-35%Ni, 0.15-0.60%Al, <1.5%Mn,
0.05-0.10%C, <0.75%Cu, 0.15-0.60%Ti
BS NA15H
19-23%Cr, 30-35%Ni, 0.15-0.60%Al, <1.5%Mn, 0.05-0.10%C,
<0.75%Cu, 0.15-0.60%Ti
JIS NCF 800H
19-23%Cr, 30-35%Ni, 0.15-0.60%Al, <1.5%Mn, 0.05-0.10%C,
<0.75%Cu, 0.15-0.60%Ti
Applications:
Petrochemical steam reforming equipment, tubes, pipes,
manifolds.
Ethylene production tubing, bends, heaters.
Heat treatment furnace parts, muffles.
Product Forms:
Plate,sheet
& strip
ASTM UNS N08810 B409
BS NA15H 3072
JIS NCF 800H 4902
Bar & long products
ASTM UNS N08810 B408
BS NA15H 3076
JIS NCF 800H 4901
Forgings & others
ASTM UNS N08810 B366
Tube and/or pipe
BS NA15H 3074
JIS NCF 800H 4904, 4903
ASTM UNS N08810 B407, B515, B163
Pipe
ASTM UNS N08810 B514, B407
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Page Last Modified: 7/04/06 17:43
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