Stainless Steel 303
Stainless Steel 303
Stainless Steel 303 is a free-machining austenitic stainless steel designed for improved machinability while maintaining good corrosion resistance and mechanical strength. It is primarily used in applications requiring extensive machining where high production efficiency is needed. The addition of sulfur enhances its cutting performance, making it ideal for manufacturing precision components used in the automotive, aerospace, and instrumentation industries.
At Apar Alloys, we are a reliable stockist and supplier of high-quality Stainless Steel 303 materials, offering products sourced from reputed global mills. Our inventory includes bars, rods, and shafts available in multiple dimensions and finishes to meet diverse project requirements. Each product is inspected and certified to ensure consistent performance, reliability, and compliance with international standards.
Specifications
| Grade | AISI | UNS | ASTM A276 / A479 | ASTM A182 | EN (W-Nr) | DIN Spec |
|---|---|---|---|---|---|---|
| 303 | AISI 303 | S30300 | ASTM A582 | ASTM A484 | 1.4305 | X10CrNiS18-9 |
General Characteristics
Austenitic chromium-nickel stainless steel
Excellent machinability due to sulfur addition
Good corrosion resistance in mild environments
High strength and toughness
Non-magnetic in annealed condition
Superior dimensional stability during machining
Chemical Composition (nominal) %
| Element | C | Mn | Si | Cr | Ni | S | P | Fe |
|---|---|---|---|---|---|---|---|---|
| 303 | ≤0.15 | ≤2.00 | ≤1.00 | 17.0–19.0 | 8.0–10.0 | 0.15 min | ≤0.20 | Balance |
Applications
Precision machined components for high-performance applications
Shafts, bolts, and nuts for machinery
Gears and fittings for industrial equipment
Aircraft parts and fasteners for aviation
Instrumentation and sensors for precise measurements
Automotive components for reliable vehicle performance
Advantages
- Superior machinability for high-speed production
- Good corrosion resistance in mild environments
- High strength and dimensional accuracy
- Non-magnetic in annealed state
- Excellent finish after machining
- Reduced tool wear during cutting operations
Mechanical Properties (Typical at Room Temperature)
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 500 – 750 |
| Yield Strength (MPa) | 190 |
| Elongation (%) | 35 |
| Hardness (Brinell) | 170 – 200 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 303 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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