Couplers use for join two pieces of rotating equipment.

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WD-70-BD is RDSO Designed High Tensile Coupler, Material requirements for coupler body, knuckle, coupler lock and coupler yoke are as per AAR specifications M-201 and M-205.

Technical Specifications

Mechanical Property Grade E
TENSILE STRENGTH N/m² (Minimum) 825
YIELD STRENGTH N/m² (Minimum) 690
Elongation on 51mm gauge length (Minimum%)14
Reduction in Area % (Minimum) 30
Hardness (BHN)241-311