ASTM F1137

Full Name

ASTM F1137 – Standard Specification for Phosphate/Oil Corrosion Protective Coatings for Fasteners

Scope

This specification covers the basic requirements for six grades of corrosion protection for fasteners:

  1. Grade A – consists of a heavy zinc phosphate coating with no additional sealer (dry)
  2. Grade B – consists of a heavy zinc phosphate coating with a dry organic sealer
  3. Grade C – consists of a heavy zinc phosphate coating with supplemental dry-to-touch oil type compound
  4. Grade D – consists of a heavy zinc phosphate coating with supplemental protective oil type compound
  5. Grade E – consists of a grain-refined microcrystalline zinc phosphate with supplemental oil type compound
  6. Grade F – consists of a manganese phosphate coating with supplemental oil type compound.

Keywords

coating; corrosion; fasteners; protection; phosphate; resistance; rust

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