446 Shims Manufacturers and Suppliers in India
Unimix Metal Corporation is among the leading 446 shims manufacturers and suppliers in India, specializing in ASTM A240 Grade 446 stainless steel shims, sheets, foils, and plates. Based in Mumbai, India, we manufacture and supply precision‑engineered shim stock for high‑temperature and corrosive industrial environments, serving customers across India and global export markets.
Overview of Grade 446 Ferritic Stainless Steel
446 Stainless Steel (UNS S44600 / DIN 1.4762) is a high‑chromium ferritic stainless steel designed for exceptional resistance to oxidation and sulfidation at elevated temperatures. Due to its low nickel content, it offers cost efficiency while maintaining excellent performance in aggressive, sulfur‑bearing atmospheres.
Key performance characteristics
Superior oxidation resistance up to 1150°C
Excellent resistance to sulfidation and scaling
Magnetic ferritic structure
Cost‑effective alternative to austenitic grades
Ideal for thin‑gauge shim stock and high‑temperature components
Stainless Steel 446 Hot Rolled Shims, Stainless Steel 446 with 2D Finish Shims, SS 446 Shims, 446 Stainless Steel Shims Supplier, Stainless Steel 446 Cold Rolled Shims, SS 446 Pre-Cut Shims, SS 446 Shims Exporter, Stainless Steel 446 with BA Surface Finish Shims.
At Unimix Metal Corporation, our Stainless Steel 446 Shims are highly appreciated for their remarkable durability, high tensile strength, and excellent corrosion resistance. These qualities make them a popular choice in industries such as pulp and paper, textiles, and beyond. They feature a well-balanced chemical composition, including elements like Copper, Chromium, Iron, Manganese, Molybdenum, Nickel, Silicon, and Sulphur. Moreover, Stainless Steel 446 Shims exhibit impressive physical properties such as tensile strength, yield strength, elongation at break, and modulus of elasticity.
ASTM & International Standards
We manufacture and supply 446 stainless steel shims in compliance with Material Test Certificates (EN 10204 3.1), which are provided with every supply.
ASTM A240 / ASME SA240 – Sheets, Plates & Shims
ASTM B564 – Forged components
ASTM B575 – Plates & cut circles
Equivalent grades: DIN 1.4762, JIS, ISO
Key Features
- Provides excellent corrosion resistance, high strength, and remarkable durability.
- Easily shaped, welded, and non-magnetic when annealed.
- Available in finishes like 2B, BA, and No.4, ensuring accurate dimensional tolerances.
- Complies with ASTM A240/ASME SA240 standards for assured quality.
- Customizable in various sizes and thicknesses to meet diverse needs.
- Low carbon content (446) enhances weldability and versatility.
Why are Stainless Steel 446 Shims preferred for precision machining?
Manufacturing Process & Quality Assurance
At Unimix Metal Corporation, all 446 stainless steel shims undergo strict quality checks:
Spectro chemical analysis
Dimensional accuracy & thickness tolerance checks
Surface finish inspection
Mechanical testing
PMI & third‑party inspection on request
Why Source Grade 446 Stainless Steel Shims from Unimix Metal Corporation?
As a trusted 446 shims manufacturer and supplier in India, we focus on quality, compliance, and reliable supply for critical industrial applications.
- Reliable Indian supplier of ASTM A240-compliant Grade 446 shim stock
- ISO‑certified manufacturing & testing
- Ready stock & fast delivery across India
- Competitive pricing & custom solutions
- Exporter to Gulf countries, Europe & Asia‑Pacific
ASTM A240 446 Stainless Steel Shims Equivalent Grades
| Grade | UNS | DIN | EN | AFNOR |
| SS 446 | S44600 | 1.4762 / 1.4763 | X10CrAlSi25 / X10CrAlSi24 | Z12CAS25 |
Chemical Composition of Stainless Steel 446 Shim
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Ti + Cb |
| SS 446 | 0.030 max | 1.0 max | 1.0 max | 0.040 max | 0.030 max | 25.0 – 28.0 | 3.0 – 4.0 | 1.0 – 3.50 | 0.20 – 1.0 |
Mechanical Properties of Stainless Steel 446 Shims
| Density | Melting Point | Annealed | Quench |
| 7.7 g/cm 3 / 0.28 lb/in 3 | 1510 (°C) / 2750 (°F) | 800 – 860 (°C) / 1650 – 1700 (°F) | Rapid Water |
Available Thickness Range for Grade 446 Shim Stock
As a leading supplier of high-temperature Grade 446 stainless steel shim stock in India, we offer:
Shim Stock: 0.05 mm to 5 mm
Sheets & Plates: 5 mm to 100 mm
Custom Sizes: Cut‑to‑length, narrow strips, and precision shims
Industrial Applications of Grade 446 Stainless Steel Shims
ASTM A240 Grade 446 stainless steel shims are used in boilers and furnaces for scaling resistance, heat exchangers and condensers for thermal stability, petrochemical plants in reactors and ducts, power generation for turbines and pollution control, marine engineering for seawater handling and desalination, and pharmaceutical industries for clean high‑temperature systems.
FAQs
Learn More About Grade 446 Performance
For a detailed technical discussion on oxidation resistance, sulfidation behavior, and material selection in high‑temperature environments, read our technical guide:
Grade 446 Stainless Steel Shims: Properties, Applications, and Selection Criteria
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