421 Stainless Steel Coil 

Core Specifications

Grade: 421 Martensitic Stainless Steel

Form: Coil (Custom slitting into sheets available)

Thickness Range: 0.3–6.0 mm

Width Range: 1000–1500 mm (Custom widths on request)

Finish: 2B, No.1 (Standard); BA (Customizable)

Hardness: Annealed (Soft) / 1/2H / 3/4H (Customizable)

Key Performance Advantages

Excellent corrosion resistance against mild acids, alkalis, and atmospheric conditions.

Moderate tensile strength and good ductility, ideal for forming and machining.

Superior heat treatability, enabling hardness adjustment to meet specific application needs.

Cost-effective balance of performance and price, suitable for mass production.

Typical Applications

Widely used in mechanical parts, automotive components, hardware tools, fasteners, and precision instruments. Perfect for scenarios requiring both corrosion resistance and mechanical stability.

Quality Assurance

Complies with international standards (ASTM/AISI).

Strict quality control from raw material to finished product, with full inspection reports available.

Warehoused in dry, ventilated environments to ensure no rust or damage during storage.

Customization & Service

Accept custom slitting, cutting, and heat treatment services.

Fast delivery for stock products; flexible MOQ for custom orders.

Professional technical support and after-sales service to solve application issues.

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