Description
J4 grade stainless steel coil, a manganese and chromium-based austenitic alloy, represents a pinnacle in stainless steel technology. Infused with reasonable amounts of nickel, copper, and nitrogen, its unique chemical composition results in unparalleled corrosion resistance, making it a cornerstone in both industrial and commercial applications. The J4 grade, introduced in Japan during the latter half of the 20th century, signifies the fourth generation of stainless steel, addressing challenges encountered in earlier versions.
Key Features of J4 Stainless Steel:
- Malleability and Durability: Renowned for remarkable malleability and durability, J4 stainless steel allows materials to bend without fracturing under stress. This property renders it ideal for shaping and welding, particularly in the automotive and manufacturing sectors.
- High Strength and Hardness: J4 stainless steel provides an excellent solution for high strength and hardness in construction and industrial machinery. Boasting an impressive tensile strength of up to 620 MPa, it resists scratching and bending. Its low carbon content contributes to exceptional strength.
- Magnetic Properties: Displaying splendid ferritic stainless steel attributes, including corrosion resistance and magnetism, J4 stainless steel’s pronounced ferromagnetism facilitates easy magnetization. This property is valuable in applications utilizing magnetic detection methods.
- Cost Efficiency: J4 stainless steel emerges as a budget-friendly choice among stainless steel options. It particularly stands out in the production of consumer goods where cost considerations play a crucial role.
Technical Specification
| Property | Value |
|---|---|
| Grade | J4 Stainless Steel |
| Type | Austenitic |
| Standard | ASTM A240 / A666 |
| Finish | 2B / BA / HR |
| Thickness Range | 0.30 mm – 3.0 mm |
| Coil Width | 1250 mm / 1000 mm / Custom |
| Hardness | 160 – 200 HB |
| Tensile Strength | 750 – 900 MPa |
| Yield Strength | 350 – 450 MPa |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Chromium (Cr) | 15.0 – 17.0 |
| Nickel (Ni) | 0.8 – 1.5 |
| Manganese (Mn) | 7.5 – 10.0 |
| Copper (Cu) | 1.5 – 2.0 |
| Carbon (C) | ≤ 0.10 |
| Nitrogen (N) | ≤ 0.20 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
Applications & Uses (J4)
- Kitchen utensils & cookware
- Tableware & cutlery
- Sinks, bowls, household items
- Furniture fittings
- Decorative applications
- Deep drawing components
- Home appliances body parts
Visit Our Branch- Ganpati Industries, Arc Stainless
What grade is best for kitchen equipment?
304 / 304L for premium items
202 / J4 / JT for economical items
316 for chemical or saltwater environments
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