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Washer
Jun 15,2018

Standard for Washer

Hardness

Material

Head Marking

ASME B18.22.1 USS


Low carbon steel

/

ASME B18.22.1 SAE


Low carbon steel

/

F436

zinc plated 38-45HRC， HDG 26-45HRC

45#+heattreatment

DIN125A

CLASS 140HV,140min HV;CL200HV,200-300HV;300HV,300-400HV.

Low carbon steel


DIN125B


Low carbon steel


DIN127A


C70 /65Mn


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