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Brand Name : JBXF
Certification : sio
Place of Origin : china
MOQ : 10
Price : 10
Payment Terms : T/T
Supply Ability : 10
Delivery Time : 10
Packaging Details : box
rafted from 42CrMo chromium-molybdenum alloy steel (GB/T 3077 compliant), processed through vacuum degassing → multidirectional forging → controlled atmosphere quenching → tempering. Achieves Grade 12.9 ultra-high strength (tensile strength ≥1220MPa, yield strength ≥1100MPa). Microstructure features uniform tempered sorbite with impact toughness >100J, delivering 300% longer fatigue life than standard Grade 10.9 bolts.
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