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| Property | Parameter | Description |
|---|---|---|
| Product Name | 410 Stainless Steel Coil | Martensitic stainless steel with good corrosion resistance |
| Material Grade | 410 / EN 1.4006 / UNS S41000 | International grade equivalents |
| Standard Compliance | ASTM A240, EN 10088-2, JIS G4305 | Meets major international standards |
| Carbon (C) | ≤0.15% | Carbon content for hardness and strength |
| Chromium (Cr) | 11.5-13.5% | Provides corrosion resistance |
| Manganese (Mn) | ≤1.0% | Improves hardenability |
| Silicon (Si) | ≤1.0% | Deoxidizer and strengthener |
| Phosphorus (P) | ≤0.040% | Controlled for ductility |
| Sulfur (S) | ≤0.030% | Low sulfur for improved machinability |
| Tensile Strength | ≥450 MPa | Minimum tensile strength per ASTM A240 |
| Yield Strength | ≥205 MPa | Minimum yield strength |
| Elongation | ≥20% | Ductility in 50mm gauge length |
| Hardness | ≤217 HBW (Annealed) | Brinell hardness maximum |
| Thickness Range | 0.3 - 6.0 mm | Available coil thickness options |
| Width Range | 1000 - 1550 mm | Standard and custom widths |
| Surface Finish | 2B, BA, No.4, HL | Multiple surface treatment options |
| Heat Resistance | Up to 650°C | Maximum service temperature |
| Application | Cutlery, valves, pump parts, automotive trim | Typical application industries |
| Certification | EN 10204 3.1, ISO 9001, ASTM A240 | Quality certifications provided |
| Packaging | Eye to wall, waterproof paper, steel strapping | Standard export packaging for coils |
| MOQ | 3 tons | Minimum order quantity |
Acceptable Quality with Thickness Variation Issues Resolved
Decent product on our 7-ton order of 410 stainless steel coil (2.2mm thickness, 1100mm width, annealed), some issues but resolved professionally. We encountered thickness variation of ±0.08mm across the coil width on the first shipment, exceeding our required tolerance of ±0.05mm for precision stamping applications. This caused rejection of approximately 12% of parts during our quality inspection due to dimensional non-conformance. We immediately contacted their quality department with detailed micrometer measurements and statistical analysis. Their engineering team investigated the issue, identified a roll calibration problem in their cold rolling mill, and provided replacement material within 3 weeks at no additional cost. The replacement coils met our thickness tolerance requirements perfectly with variation under ±0.03mm. They also implemented additional in-process thickness monitoring and provided us with detailed inspection reports. I recommend requesting tighter thickness tolerances in the purchase order specification and asking for pre-shipment dimensional inspection reports if your application is critical. Their willingness to resolve the issue and improve their process control was commendable, though the initial quality should have been better. Fair 3-star rating reflects the problem offset by excellent service recovery.
Decent product on our 7-ton order of 410 stainless steel coil (2.2mm thickness, 1100mm width, annealed), some issues but resolved professionally. We encountered thickness variation of ±0.08mm across the coil width on the first shipment, exceeding our required tolerance of ±0.05mm for precision stamping applications. This caused rejection of approximately 12% of parts during our quality inspection due to dimensional non-conformance. We immediately contacted their quality department with detailed micrometer measurements and statistical analysis. Their engineering team investigated the issue, identified a roll calibration problem in their cold rolling mill, and provided replacement material within 3 weeks at no additional cost. The replacement coils met our thickness tolerance requirements perfectly with variation under ±0.03mm. They also implemented additional in-process thickness monitoring and provided us with detailed inspection reports. I recommend requesting tighter thickness tolerances in the purchase order specification and asking for pre-shipment dimensional inspection reports if your application is critical. Their willingness to resolve the issue and improve their process control was commendable, though the initial quality should have been better. Fair 3-star rating reflects the problem offset by excellent service recovery.
