MR Grade Tinplate Coil - Cold Rolled Electrolytic Tin Coated Steel Coil

Technical Specifications of MR Grade Tinplate Coil

MR Grade Tinplate Coil - Cold Rolled Electrolytic Tin Coated Steel Coil

MR grade tinplate coil represents a premium-quality electrolytic tin-coated cold rolled steel product specifically engineered for metal packaging applications requiring moderate temper hardness. This specialized material combines the formability and corrosion resistance of tin coating with the structural integrity of low-carbon steel substrate, making it the preferred choice for food and beverage can manufacturers, aerosol container producers, and specialty packaging converters worldwide.

What is MR Grade Tinplate Coil?

MR grade tinplate coil is a cold-rolled low-carbon steel sheet coated with a thin layer of pure electrolytic tin on both sides, manufactured to meet ASTM A623 or JIS G3303 specifications with medium-hard temper designation. The "MR" classification indicates a Rockwell hardness range of HR 30T 52-58, providing optimal balance between formability and structural strength for deep drawing and moderate forming operations.

MR Grade Tinplate Coil Technical Specifications

Our MR grade tinplate coil complies with international standards including ASTM A623M-17 and EN 10202:2001, featuring base metal thickness ranging from 0.15mm to 0.49mm with tin coating mass of 2.8g/m² to 11.2g/m² per side. The material exhibits tensile strength of 380-480 MPa, elongation of 30-36%, and surface treatment options including bright finish, stone finish, or silver finish to meet diverse packaging requirements.

Why Choose Our MR Grade Tinplate Coil

We supply mill-direct MR grade tinplate coil manufactured under ISO 9001:2015 certified production facilities, ensuring consistent mechanical properties and coating uniformity across every coil. Our value-driven pricing structure, combined with comprehensive material test certificates per EN 10204 3.1 standard and flexible customization capabilities for width (600mm-1250mm) and coil weight (3-12 metric tons), positions us as your reliable partner for cost-effective tinplate solutions.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard minimum order quantity for MR grade tinplate coil is 25 metric tons per specification, with flexibility for mixed container shipments combining different tin coating weights or surface finishes to optimize your inventory management and reduce landed costs.

Do you provide material test certificates?

Yes, we provide comprehensive mill test certificates conforming to EN 10204 Type 3.1 standard with each shipment, documenting chemical composition per ASTM E1019, mechanical properties per ASTM E8, tin coating weight per ASTM A623 Annex A1, and surface quality inspection results for full traceability.

What is the typical delivery time?

Standard delivery time for MR grade tinplate coil ranges from 25-35 days after deposit confirmation for stock specifications, while custom orders requiring specific coating weights or surface treatments may require 40-50 days depending on production scheduling and coating line availability at our partner mills.

Can you cut to custom sizes?

We offer precision slitting services to convert master coils into custom widths from 100mm to 1050mm with tolerance of ±0.5mm, as well as cut-to-length sheet cutting for sizes up to 1250mm × 2500mm, enabling just-in-time delivery of ready-to-use blanks for your stamping or forming operations.

Get a Competitive Quote for MR Grade Tinplate Coil

Contact our technical sales team today to receive factory-competitive pricing for MR grade tinplate coil tailored to your specific application requirements. We provide detailed quotations including material specifications, packaging options, shipping terms, and lead times within 24 hours, backed by our commitment to superior product quality and responsive customer service for your metal packaging needs.