ASTM F1137/F1137M PDF
ASTM F1137/F1137M PDF
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ASTM F1137/F1137M PDF

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Standard Specification for Phosphate/Oil Corrosion Protective Coatings for Fasteners

Published byPublication DateNumber of Pages
ASTM06/15/20193

ASTM F1137/F1137M – Standard Specification forPhosphate/Oil Corrosion Protective Coatings for Fasteners

1.1 This specification covers the basic requirements for six grades of corrosion protection for fasteners. Grade A consists of a heavy zinc phosphate coating with no additional sealer (dry), Grade B consists of a heavy zinc phosphate coating with a dry organic sealer, Grade C consists of a heavy zinc phosphate coating with supplemental dry-to-touch oil type compound, Grade D consists of a heavy zinc phosphate coating with supplemental protective oil type compound, Grade E consists of a grain-refined microcrystalline zinc phosphate with supplemental oil type compound, and Grade F consists of a manganese phosphate coating with supplemental oil type compound.

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