Stainless Steel Superaustenitic
800/800H/800HT®

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Specifications (ASTM/ASME)
Alloy UNS Designation Material
Specification
Tubing
Specification
Pipe
Specification
800 N08800 A 240/SA-240 B 515 B 514/SB-514
800H N08810 A 240/SA-240 B 515 B 514/SB-514
800HT® N08811 A 240/SA-240 B 515 ---
Chemical Composition (%)
Alloy 800 800H 800HT®
UNS Designation N08800 N08810 N08811
Carbon (C)  0.1 max. 0.05 - 0.10 0.06 - 0.10
Manganese (Mn) max. 1.50 1.50 1.50
Phosphorus (P) max. 0.045 0.045 0.040
Sulfur (S) max. 0.015 0.015 0.015
Silicon (Si) max. 1.00 1.00 1.00
Chromium (Cr) 19.0 - 23.0 19.0 - 23.0 19.0 - 23.0
Nickel (Ni) 30.0 - 35.0 30.0 - 35.0 30.0 - 35.0
Copper (Cu) max. 0.75 0.75 0.75
Aluminum (Al) 0.15 - 0.60 0.15 - 0.60 0.15 - 0.601
Titanium (Ti) 0.15 - 0.60 0.15 - 0.60 0.15 - 0.601
Iron (Fe) min. 39.5 39.5 39.5

1 (Al + Ti) 0.85 - 1.20

Typical Physical & Mechanical Properties - Annealed Condition (Room Temperature)
Alloy UNS Designation Minimum Tensile Strength
Minimum Yield
Strength
0.2% Offset
Minimum Percent (%)
Elongation in
2 inches (50.8 mm)
(psi) (MPa) (psi) (MPa)
800 N08800 75,000 520 30,000 205 30
800H N08810 65,000 450 25,000 170 30
800HT® N08811 65,000 450 25,000 170 30

INCOLOY® 800HT® is a registered trademark of Special Metals Corporation group of companies.

 

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