Hard Temper Tinplate Coil - High-Strength Electrolytic Tin Coated Steel Coil

Technical Specifications of Hard Temper Tinplate Coil

Hard Temper Tinplate Coil - High-Strength Electrolytic Tin Coated Steel Coil

Hard temper tinplate coil represents a premium-grade electrolytic tin-coated steel product engineered for applications demanding exceptional rigidity and structural integrity. This specialized cold-rolled steel substrate receives a precisely controlled tin coating through electroplating, delivering superior formability resistance and mechanical strength compared to standard temper grades. Manufactured to meet stringent international standards including JIS G3303, ASTM A623, and EN 10202, hard temper tinplate coil serves critical roles in rigid container manufacturing, industrial packaging, and structural components where dimensional stability under stress is paramount.

What is Hard Temper Tinplate Coil?

Hard temper tinplate coil is cold-rolled low-carbon steel sheet with electrolytic tin coating on both surfaces, processed to achieve Rockwell hardness values exceeding HR 30T 60, corresponding to T-5 or T-6 temper designations per international standards. The material exhibits tensile strength ranging from 550-680 MPa with minimal elongation properties (2-6%), making it the preferred choice for applications requiring maximum stiffness and resistance to deformation during high-speed forming operations.

Hard Temper Tinplate Coil Technical Specifications

Base metal thickness ranges from 0.15mm to 0.49mm with tin coating weight options of 2.8g/m² to 11.2g/m² per surface (E2.8/2.8 through E11.2/11.2 designations). The substrate steel grade typically conforms to MR-type (low-carbon aluminum-killed steel) with carbon content limited to 0.13% maximum and manganese content between 0.30-0.60% per ASTM A623 Section 6.1. Standard coil dimensions include widths from 600mm to 1050mm and coil weights up to 12 metric tons, with inner diameter of 508mm (20 inches) conforming to ISO 11949 specifications.

Why Choose Hard Temper Tinplate Coil?

Our hard temper tinplate coil delivers mill-direct competitive pricing combined with guaranteed compliance to JIS G3303:2012 and EN 10202:2001 chemical composition requirements. Each production lot undergoes rigorous testing including Rockwell hardness verification, tin coating weight measurement via coulometric stripping per ASTM A624, and surface quality inspection under ISO 11949 Class A standards. We maintain extensive inventory across temper grades T-5 (HR 30T 60-64) and T-6 (HR 30T 64+) with same-day quotation response and technical consultation from our metallurgical engineering team.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard MOQ for hard temper tinplate coil is 25 metric tons per specification (thickness/coating/temper combination), with flexibility for consolidated orders combining multiple grades. Trial orders of 10 tons minimum are available for first-time customers requiring material qualification testing, subject to mill scheduling availability and applicable surcharges for non-standard production runs.

Do you provide material test certificates?

Yes, every shipment includes EN 10204 Type 3.1 mill test certificates documenting chemical composition analysis per ASTM E1019, mechanical properties testing per ASTM A370, tin coating weight verification, and temper grade confirmation. Additional certifications available upon request include RoHS compliance declarations, REACH SVHC statements, and FDA food contact compliance documentation per 21 CFR 175.300 for applicable coating systems.

What is the typical delivery time?

Lead time for in-stock standard specifications averages 15-20 working days from purchase order confirmation to port of loading, including mill production scheduling, quality inspection, and export documentation processing. Custom specifications requiring special rolling programs or non-standard coating weights may extend to 35-45 days depending on mill capacity and raw material procurement cycles for specific steel grade requirements.

Can you cut to custom sizes?

We offer precision slitting services to customer-specified widths with tolerance of ±0.5mm, minimum slit width of 100mm, and maximum of 1050mm based on master coil dimensions. Sheet cutting to length is available through our processing partners with tolerances per ASTM A623 Table 4 requirements, minimum sheet length 500mm, and burr-free edge quality suitable for direct stamping operations without secondary deburring.

Get a Competitive Quote for Hard Temper Tinplate Coil

Contact our technical sales team today for mill-direct pricing on hard temper tinplate coil tailored to your exact specifications. Our metallurgical engineers provide complimentary application consulting to optimize material selection across temper grades, coating weights, and surface finishes. Request your detailed quotation including chemical composition guarantees, mechanical property ranges, and delivery scheduling - backed by our ISO 9001:2015 certified quality management system and 20+ years of specialized tinplate supply experience to global manufacturing operations.