Customization: | Available |
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After-sales Service: | Quality Problem Can Send Free New |
Warranty: | 15years |
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Name
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Spring steel coil
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Heat treatment
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Quench 830 °C ± 20 °C, oil cooling; tempering 540 °C ± 50 °C
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Tensile strength σb (MPa): ≥ 980 (100),Yield strength σs(MPa): ≥784(80),
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Elongation δ10(10%):≥8,Section shrinkage ψ(%):≥30,Hardness: Hot Rolling,
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≤302HB;Cold Pull+Heat Treatment,≤321HB.
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Packing
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Export standard packing or according to customers' requirement
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Certificate
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ISO9001:2008,SGS
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Shipment
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Within10-15 workdays,25-30days when the quantity beyond 1000tons
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