Cold Rolled AISI 444 SUS444 B444Ti 00Cr18Mo2 Stainless Steel Strip Coil
444 Stainless Steel Overview
SUS444 (00Cr18Mo2) is a ferritic stainless steel with ultra-low carbon and nitrogen content, containing 18% chromium and 2% molybdenum for high corrosion resistance. The yield strength of 444 is equivalent to 1.5 times that of carbon steel and 6 times that of fiberglass steel, offering outstanding advantages in shock resistance, snow resistance, wind pressure resistance, and impact resistance.
SUS444 ferritic stainless steel features high thermal conductivity (approximately 130% to 150% of Cr-Ni austenitic stainless steel), making it ideal for heat exchange applications. It has a small thermal expansion coefficient (only 60% to 70% of chromium-nickel austenitic stainless steel), making it suitable for thermal expansion, contraction, and thermal cycle conditions.
This steel demonstrates good plasticity and toughness, making it suitable for drawing, rolling forming, and stamping manufacturing. Its corrosion resistance is particularly excellent, with better performance in high chloride media than ordinary ferritic and austenitic stainless steels, and it generally does not suffer from chloride stress corrosion cracking.
When titanium (Ti) and molybdenum (Mo) elements are added, resistance to pitting and crevice corrosion is improved. The steel can be welded using standard stainless steel welding methods and is particularly suitable for food processing equipment, heat exchangers, water heater tanks, water storage tanks, and solar energy collection panels.
Material Properties and Advantages
444 steel belongs to high alloy ferritic stainless steel. Compared with commonly used SUS430 steel:
- Chromium content is approximately 1.0% higher with added molybdenum (Mo), providing excellent resistance to pitting corrosion, crevice corrosion, and stress corrosion
- Corrosion resistance in some applications even surpasses SUS304 and SUS316
- Addition of titanium (Ti), niobium (Nb), and zirconium (Zr) stabilized elements provides good intergranular corrosion resistance and high temperature oxidation resistance
- Old designation: 00CR18MO2; New designation: 019CR19MO2NBIÜ
- Uniform digital code: S11972 (GB/T 20878-2007)
This is the most cost-effective grade of steel, with 444 Stainless Steel Sheet prices lower compared to other stainless steel grades and metallic products in general. Low carbon versions are excellent for welding applications with less carbide precipitation and localized corrosion.
Equivalent Materials
| Grade |
Euronorm |
China GB |
Japanese JIS |
| No. 444 |
1.4521N |
00Cr18Mo2 |
SUS444 |
Standard Specifications
| Parameter |
Specification |
| Thickness |
4mm-100mm |
| Width |
1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Length |
2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface |
2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
| Finish |
Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form |
Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
Chemical Composition
| Element |
Content (%) |
| C |
≤0.025 |
| Mn |
≤1.00 |
| Si |
≤1.00 |
| P |
≤0.04 |
| S |
≤0.03 |
| Cr |
17.5~19.5 |
| Mo |
1.75~2.5 |
| Ni |
≤1.00 |
| N |
≤0.035 |
Common Types
- 444 Stainless Steel Sheet
- 444 Stainless Steel Strip
- 444 Stainless Steel Coil
Surface Finishes and Processing Technology
1D Surface
Discontinuous granular shape, also known as fog surface.
Processing: Hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2D Surface
Slightly silvery white color.
Processing: Hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2B Surface
Silver white with better gloss and flatness than 2D surface.
Processing: Hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + quenching and tempering rolling.
BA Surface
Excellent surface gloss, high reflectivity, mirror-like surface.
Processing: Hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + surface polishing + quenching and tempering rolling.
No.3 Surface
Good gloss, coarse grain surface.
Processing: Polishing and tempering rolling for 2D or 2B with 100~120 abrasive materials (JIS R6002).
No.4 Surface
Good gloss, fine lines on the surface.
Processing: Polishing and tempering rolling for 2D or 2B with 150~180 abrasive materials (JIS R6002).
HL Surface
Silver grey with hair streaks.
Processing: 2D or 2B products polished with appropriate granularity abrasive materials for continuous abrasive grain surface.
Mirror Surface
Specular finish.
Processing: 2D or 2B products ground and polished to mirror effect with appropriate granularity grinding materials.
Mechanical Properties
Annealed Properties
| Property |
Value |
| Ultimate Tensile Strength |
60 KSI min (414 MPa min) |
| Yield Strength (0.2% offset) |
40 KSI min (276 MPa min) |
| Elongation |
22% min |
| Hardness |
Rb 90 max |
Tempered Properties: Type 444 can be rolled to various tempers. Available as Sheet, Strip, Coil, Foil, Wire per ASTM A268, ASTM A240 standards.
Heat Treatment: Type 444 is non-heat treatable.
Frequently Asked Questions
What thickness options are available?
Thickness ranges from 0.3 mm to 50 mm, and can be customized to your specific requirements.
What surface finishes do you offer?
We provide 2B, BA, HL, No.1, No.4, No.5, Embossed, and Mirror finishes, or as per your requirement.
Do you provide customized processing services?
Yes, we offer laser cutting, bending processing, and custom surface protection films.
What is the delivery time for orders?
Delivery typically takes 7 to 20 days, mainly depending on the quantity of the order.
Which steel grades are in stock?
We stock 400 series grades like 410L, 430, and 443, as well as 304, 316L, and other stainless steel grades.
What are the standard dimensions for the sheets?
Standard widths are 1000-2000mm and lengths are 1000-6000mm, both customizable as required.
What certifications do your products have?
Our products are certified under ISO, RoHS, IBR, BV, and SGS standards.
How are the products packaged?
We use standard seaworthy packing with plastic and wood, or according to customer requests.
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