Stainless Steel 321
Stainless Steel 321
Stainless Steel 321 is a high-performance austenitic stainless steel alloyed with titanium to enhance resistance to intergranular corrosion. Known for its excellent corrosion resistance, high strength, and stability at elevated temperatures, it is suitable for applications in chemical processing, aerospace, automotive, heat exchangers, and industrial furnaces. Its durability in high-temperature environments makes it a preferred choice for components exposed to heat, stress, or corrosive atmospheres.
At Apar Alloys, we are a reliable stockist and supplier of quality Stainless Steel 321 materials, offering products sourced from reputed global mills. Our inventory includes bars, sheets, plates, and pipes available in multiple dimensions and finishes to meet project-specific requirements. Each product is thoroughly inspected and certified to ensure consistent performance, quality, and reliability for diverse industrial applications.
Specifications
| Grade | AISI | UNS | ASTM A276 / A479 | ASTM A182 | EN (W-Nr) | DIN Spec |
|---|---|---|---|---|---|---|
| 321 | AISI 321 | S32100 | ASTM A240 | A312 | 1.4541 | X6CrNiTi18-10 |
General Characteristics
Austenitic stainless steel with titanium stabilization
Excellent corrosion and oxidation resistance
High strength, ductility, and toughness
Superior weldability and easy formability
Hygienic, easy-to-clean surface
Non-magnetic in annealed condition
Chemical Composition (nominal) %
| Element | C | Mn | Si | Cr | Ni | Ti | S | P | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 321 | ≤0.08 | ≤2.00 | ≤1.00 | 17.0–19.0 | 9.0–12.0 | 0.70 max | ≤0.030 | ≤0.045 | Balance |
Applications
High-temperature chemical and petrochemical equipment
Aerospace and automotive heat-resistant components
Heat exchangers, furnace parts, superheaters
Food processing equipment for high temperatures
Piping systems and storage tanks
Industrial machinery and heat-stressed structures
Advantages
- Excellent corrosion and oxidation resistance, even at high temperatures
- High strength, ductility, and toughness
- Titanium stabilization prevents carbide precipitation during welding
- Superior weldability and formability
- Non-magnetic in the annealed condition
- Durable and reliable in extreme heat environments
Mechanical Properties (Typical at Room Temperature)
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 515 – 760 |
| Yield Strength (MPa) | 205 |
| Elongation (%) | 40 |
| Hardness (Brinell) | 170 – 190 HB |
Why Choose Apar Alloys
At Apar Alloys, we merge technical expertise with a customer-first approach. Our extensive inventory and sourcing network ensure that clients receive certified stainless steel materials that meet international standards and project-specific requirements.
Reliable Stockist & Supplier
We maintain a ready-to-dispatch inventory of stainless steel materials, ensuring fast and dependable delivery.
Sourced from Trusted Global Mills
All materials are procured from reputed international suppliers, guaranteeing quality and traceability.
Stringent Quality Checks
Each product undergoes thorough inspections and traceable certifications to meet stringent standards.
Custom Sizing & Cutting
We provide tailored solutions, including custom sizing, cutting, and finishing as per client needs.
Competitive Pricing and Timely Delivery
Apar Alloys ensures cost-effective supply with on-time delivery across industries.
Dedicated Client Support
Our experienced team provides personalized assistance, ensuring smooth transactions and lasting partnerships.
Get in Touch
Contact Us
Looking for a reliable source for Stainless Steel 321 materials? Connect with Apar Alloys today for quotes, technical guidance, and customized supply solutions.
[Call] +91 98333 89128
301, 3rd floor, A WING, Krishvi Escape, Near Vinay Health Home, Fanaswadi Bhuleshwar, Mumbai - 400002.
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