Page 49 - Design Criteria.qxd

50 ® Welcome to the Next Generation of Sealing Technology
Trade Temperature Hardness
Material Name Description Range Value (Brinell) Comments
Alloy 200 Nickel Commercially pure (99.6%) wrought nickel 760°C max 110 max Highly resistant to various
200 (1400°F) reducing chemicals and caustic
alkalies.
Alloy Monel® A 67% nickel/30% copper alloy steel 820°C max 150 max High resistance
400 400 (1500°F) to hydrofluoric acid.
Alloy B2 Hastelloy® A nickel/molybdenum alloy steel 1095°C max 200 max Excellent chemical resistance to
B2 (2000°F) hydrochloric acid, sulfuric,
acetic and phosphoric acids.
Alloy C276 Hastelloy® A nickel/chromium/molybdenum alloy steel 1095°C max 200 max Excellent corrosion resistance to
C276 (2000°F) both oxidizing and reducing
media.
Alloy 20 Carpenter An iron/chromium alloy steel 760°C max 160 max Specifically developed for
20 (1400°F) applications requiring resistance
to sulfuric acid.
Alloy Inconel® A nickel/chromium/iron alloy steel 1095°C max - Precipitation hardenable
x - 750 x-750 (2000°F) high resistance steel.
Alumimum - Commercially pure wrought aluminum 425°C max Approx 35 Excellent ductility and
(800°F) workability.
Brass - Commercial copper/zinc alloy 260°C max Approx 60 General corrosion resistance.
(500°F)
Copper - Commercially pure copper 315°C max Approx 80 General corrosion resistance.
(600°F)
Other materials include, tantalum, zirconium, platinum, gold, phosphor and bronze.
Metallic Gasket Materials