Stainless Steel Alloy
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Stainless steel alloys are a group of iron-based alloys containing at least 10.5% chromium. Depending on their composition and structure, they can be classified into austenitic, martensitic, ferritic, and duplex stainless steels. Stainless steel is known for its unique physical and chemical properties.
Available grades: 201, 202, 204, 207, 207Cu, 301, 302, 304, 304L, 304N, 308, 308L, 308Si, 309, 309L, 309Si, 310, 310S, 314, 316, 316L, 317, 321, 330, 347, 348, 410, 420, 430
- The oxide film protective layer formed by chromium gives stainless steel excellent corrosion resistance in various environments.
- Different types of stainless steel maintain good mechanical properties over a wide temperature range.
- Easy to process, form, and weld, making it suitable for the manufacture of complex-shaped products.
- Can achieve various surface finishes such as polishing and sanding.
- Non-toxic and easy to clean, making it ideal for the food processing and medical fields.
- Due to its durability and corrosion resistance, it reduces the need for maintenance during long-term use.
- Construction and infrastructure: Building facades, bridges, railings, etc.
- Food processing and pharmaceuticals: Equipment manufacturing, such as mixers, reactors, conveyors, etc.
- Chemical and petrochemical: Manufacturing reaction vessels, heat exchangers, pumps, valves, etc.
- Medical devices: Surgical instruments, implants, dental tools, etc.
- Transportation: Automotive exhaust systems, railway vehicle parts, shipbuilding, etc.
- Household appliances and kitchenware: Refrigerators, dishwashers, knives, cookware, etc.
- Environmental technology: Wastewater treatment facilities, air purification systems, etc.
- Energy industry: Cooling system components for nuclear and thermal power plants
Product Forms
Stainless Steel Alloy Wire
Stainless Steel Alloy Tube
Stainless Steel Alloy Rod
- Plate / Sheet
- Thickness: 0.3mm-200mm
- Width: 1000mm-2500mm
- Length: 2000mm-6000mm, or customizable
- Rod
- Diameter: 2mm-500mm
- Length: 1m-6m, or customizable
- Tube
- Outer Diameter: 3mm-800mm
- Wall Thickness: 0.5mm-30mm
- Length: 6m, or customizable
- Wire
- Diameter: 0.02mm-12mm
- Delivery Forms: Coiled wire or straight wire
- Strip
- Thickness: 0.05mm-3mm
- Width: 5mm-800mm
- Coiled Strip Weight: Commonly 50-200 kg
- Profile
- Common Type: Angle steel, channel steel, I-beam, H-beam
- Size: Compliant with standards or customizable
Common Types of Stainless Steel
| Type | Austenitic Stainless Steel | Ferritic Stainless Steel | Martensitic Stainless Steel | Duplex Stainless Steel | Precipitation Hardening Stainless Steel |
| Features | Non-magnetic, excellent corrosion resistance, good toughness, and machinability | High chromium content with little or no nickel, cost-effective, good oxidation resistance | High carbon content, high hardness, lower corrosion resistance | A mix of austenitic and ferritic structures, high strength, and excellent corrosion resistance | High strength and hardness achieved through heat treatment, while maintaining good corrosion resistance |
| Chemical Composition | Chromium (16-26%), Nickel (6-22%), with some containing molybdenum or nitrogen | Chromium (10.5-30%), low carbon content | Chromium (11-18%), high carbon content | Chromium (19-28%), Nickel (4.5-8%), often contains molybdenum or nitrogen | Chromium (15-17.5%), Nickel (3-7%), with additions of titanium, aluminum, copper, etc. |
| Application | Food processing equipment, medical devices, chemical installations | Automotive exhaust systems, household appliance casings | Cutlery, bearings, medical tools | Chemical equipment, marine engineering | Aerospace, nuclear industry |
| Grade | 304, 316, 310S | 430, 409 | 410, 420 | 2205, 2507 | 17-4PH |
Chemical Composition
| Iron (Fe) | Basic element |
| Chromium (Cr) | 10.5%-30% (to provide corrosion resistance) |
| Nickel (Ni) | 3%-35% (to enhance ductility and corrosion resistance) |
| Molybdenum (Mo), Titanium (Ti), Manganese (Mn), or other elements based on special properties required | Negligible content |
Physical Properties
| Density | 7.75g/cm³-8.1g/cm³ |
| Melting Point | 1370°C-1510°C (depending alloy grade) |
| Thermal Conductivity | 10-30 W/(m·K) (200°C) |
| Coefficient of Thermal Expansion | Austenitic stainless steel: 16×10⁻⁶/K (20°C-100°C) Ferritic stainless steel: 10×10⁻⁶/K |
| Electrical Resistivity | 0.73-1.0 μΩ·m |
Mechanical Properties
| Tensile Strength | Austenitic Stainless Steel | 500-750 MPa (e.g. 304, 316) |
| Martensitic Stainless Steel | 800-1500 MPa (e.g. 420, 440C) | |
| Yield Strength | 200-600 MPa | |
| Elongation at Break | 15%-40% | |
| Hardness | Annealed state | 150-300 HB |
| After aging treatment | Up to 600 HB (e.g. 440C) | |
Standard Compliant
Our production adheres to JIS G4313 standards, ensuring compliance with international quality benchmarks.
Equivalent overseas standards are listed for reference.
- ISO 12, 11, 10, 19
- RUSSIA 12KH18H9, 08KH18H10, Z2CN18.09, Z6CNDT17.12, 03KH17H14M2, Z2CND7.12N, ZCNS18.09A2
- AISI, A STM 302, S30200, 304, S30400, TP304, 304L S30403, TP304L, 316Ls S31603, TP316L, 310S, S31008s TP310S, 309S, S30908, 316Ns S31651, 304
- DIN X12CrNi88, X5CrNi89, X2CrNi189, X10CrNiTi189, X10CrNiMoTi1810, X2Cr, X2CrNiMoN1812
- BS 302S25, 304S15, 304S12, 320S17, 316S12
- GB/T 1Cr18Ni9, 0Cr18Ni9, 00Cr19Ni10, 1Cr18Ni9Ti, 0-1Cr18Ni12Mo2 Ti, 00Cr17Ni14Mo2, 0Cr25Ni20, 0Cr23Ni13, 0Cr17Ni12Mo2N, 00Cr17Ni13Mo2N, 0Cr18Ni12Mo2Cu, 00Cr18Ni14Mo2Cu2, 0CM9NM9N
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