Introducing ASTM A240 Cold Rolled SUS443 Stainless Steel Sheet
We are pleased to announce the availability of our premium ASTM A240 Cold Rolled SUS443 (UNS S44330 / DIN 1.4611 / X2CrTi21) Stainless Steel Sheet, now in stock at competitive factory-direct pricing. With a specification of 1.2 × 1220 mm and a comprehensive range of customizable dimensions, this high-performance ferritic grade is engineered for demanding industrial applications across global markets.
Why Grade 443? A Rising Star in Ferritic Stainless Steel
Grade 443 is a specialty ferritic stainless steel that is steadily gaining recognition worldwide. Widely adopted by Japanese manufacturers and proven in rigorous industrial environments, it features a precisely balanced composition of chromium and titanium with extremely low carbon content. This unique metallurgical profile delivers exceptional resistance to corrosion — particularly against moisture, salt, and chloride-rich environments — making it an outstanding alternative to conventional austenitic grades in many applications.
Key Advantages Over Conventional 304 Stainless Steel
- Superior Corrosion Resistance: The elevated chromium content — the most corrosion-resistant metallic element — provides Grade 443 with better anti-corrosion performance than many austenitic alloys, especially in humid and saline conditions.
- Lower Thermal Expansion: Grade 443 expands significantly less with heat compared to 304 stainless steel, resulting in reduced thermal stress and minimal warping during temperature fluctuations. This makes it ideal for applications involving heat cycling.
- Proven Industry Synergy: Leading grill manufacturers such as Summerset Grills utilize a combination of grades 304 and 443, leveraging the best characteristics of each material for optimal product performance and longevity.
- Cost-Effective Performance: As a ferritic grade, 443 offers an excellent balance of durability and cost-efficiency, making it a smart choice for volume-driven industrial applications without compromising quality.
Product Specifications at a Glance
| Parameter | Details |
|---|
| Grade | 443 (SUS443 / UNS S44330 / DIN 1.4611 / X2CrTi21) |
| Standard | AISI, ASTM, GB, JIS, EN |
| Thickness Range | 0.5 mm – 3.0 mm (customizable up to 20 mm for plates) |
| Width Range | 1000 mm – 1500 mm (or as required) |
| Length Range | 1000 mm – 6000 mm (or as required) |
| Surface Finishes | 2B, No.1, BA, HL, No.3, No.4, 4K, 6K, 8K, Mirror |
| Brands Available | TISCO, JISCO, LISCO and other premium mills |
| Certifications | ISO9001, SGS, RoHS, IBR, BV |
| Packing | Interlayer paper, kraft paper, wooden packing (standard seaworthy export packaging) |
Surface Finish Options & Applications
| Finish | Characteristics | Typical Applications |
|---|
| 2B | Smooth, bright surface with excellent flatness; enhanced mechanical properties through specialized surface treatment | General industrial use, food processing equipment, medical devices |
| No.1 | Polished with #100–#200 abrasive belt; bright with discontinuous coarse stria | Building ornaments, electrical appliances, kitchen utensils |
| BA | Cold rolled, bright annealed and skin-passed; mirror-like brightness and reflectivity | Kitchen apparatus, decorative ornaments, architectural panels |
| HL | Continuous hairline streaks polished with #150–#320 abrasive belt on No.4 finish | Elevator panels, building doors, frontal plates, architectural ornaments |
| 8K / Mirror | Premium brightness with superior reflectivity comparable to glass mirror | High-end architectural decoration, luxury interior design, display fixtures |
Versatile Industrial Applications
Our SUS443 stainless steel sheets serve a broad spectrum of industries worldwide, including:
- Construction & Building: Structural components, cladding, roofing, and interior decorative elements
- Shipbuilding & Marine: Components exposed to saline and humid environments
- Petroleum & Chemical: Storage tanks, piping, and processing equipment requiring high corrosion resistance
- Food Processing & Medical: Hygienic surfaces, worktops, surgical instrument components, and food-grade machinery
- Boiler & Heat Exchanger: Thermal equipment components benefiting from low thermal expansion
- Machinery & Hardware: Precision parts, fasteners, structural frames, and industrial tooling
Factory-Direct Supply Chain & Global Reach
We maintain robust inventory levels of 400 series stainless steel grades including 409L, 410L, 430, 430LX, 436L, 439, 441, 443, and 444, alongside 304, 316L, and other austenitic grades. Our products reach markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, Eastern Asia, and Western Europe.
With standard delivery times of 7–20 days depending on order volume and comprehensive value-added services including laser cutting, bending, and custom surface protection films, we are equipped to fulfill both standard and highly customized requirements.
Contact Us for Quotations & Technical Consultation
For detailed product data sheets, pricing inquiries, or technical consultation regarding ASTM A240 SUS443 stainless steel sheets, please contact our export team. We welcome OEM and ODM partnerships and are committed to delivering premium-quality stainless steel solutions backed by rigorous quality control and responsive customer service.
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