ASTM A194 Grade 2H Nuts
ASTM A194 Grade 2H is a standard material specification for high tensile nuts and other internally threaded fasteners, made from carbon steel. Suitable for high temperatures and high pressure conditions.
ASTM A194, Grade 2HM Nuts
Both 2H and 2HM nuts have the same chemical composition. 2HM nuts require 100% of nuts to be hardness tested.
ASTM A194, Grade 7L
Heat-treated chrome-molybdenum steel nuts suitable for extreme temperature and pressure conditions. When used in conjunction with A320 bolts in a low temperature application, or if specially requested, they are charpy tested to assure they will perform well in a low temperature environment. New stamping as per ASTM is 7L.
ASTM A194, Grade 7ML
Similar to grade 7L nuts except this grade is designed for use in corrosive environments. New stamping as per ASTM is 7ML.
ASTM A194, Grade 8
ASTM A194 Grade 8 is a standard material specification for high tensile nuts and other internally threaded fasteners, made from 304 Stainless Steel. Intended for use in high temperature, high pressure corrosive environments.
ASTM A194, Grade 8M
ASTM A194 Grade 8M is a standard material specification for high tensile nuts and other internally threaded fasteners, made from 316 Stainless Steel. Intended for use in high temperature, high pressure corrosive environments.
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