Stainless Steel 303 Pipes bring free-machining grade to your projects. GXH Steels supplies these pipes for demanding industrial applications where standard grades fall short.
What Is Stainless Steel 303?
Grade 303 stainless steel belongs to the Austenitic family. It contains 18% Cr, 9% Ni, sulfur added. This composition gives the material its free-machining grade.
GXH Steels manufactures Stainless Steel 303 Pipes to meet ASTM and international standards. Each pipe goes through quality checks before shipping.
For applications needing better corrosion resistance, Stainless Steel 304 Pipes provide an excellent choice.
Key Features
Here’s what sets Stainless Steel 303 Pipes apart:
- Corrosion Resistance – Lower than 304 due to sulfur content.
- Temperature Performance – Rated for service up to 760°C continuous.
- Material Composition – Contains 18% Cr, 9% Ni, sulfur added for balanced properties.
- Quality Assurance – Every batch includes mill test certificates and documentation.
Projects requiring superior chemical resistance may also benefit from Grade 316 Pipes.
Stainless Steel 303 Pipes Chemical Composition
The chemical composition of Grade 303 stainless steel per ASTM/AISI standards:
| Element | Composition (%) |
|---|---|
| C | 0.15 |
| Mn | 2.00 |
| Si | 1.00 |
| P | 0.20 |
| S | 0.15 min |
| Cr | 17.0-19.0 |
| Ni | 8.0-10.0 |
Stainless Steel 303 Pipes Mechanical Properties
Mechanical properties of Grade 303 in annealed condition:
| Property | Value |
|---|---|
| Tensile Strength | 620 MPa (89923 psi) |
| Yield Strength (0.2%) | 240 MPa (34809 psi) |
| Elongation (in 50mm) | 50% |
| Hardness | 183 HB (Brinell) |
Stainless Steel 303 Pipes Physical Properties
Physical characteristics of Grade 303 stainless steel:
| Property | Value |
|---|---|
| Density | 7.94 g/cm³ |
| Melting Range | 1400-1420°C |
| Thermal Conductivity (at 100°C) | 16.2 W/m·K |
| Specific Heat | 500 J/kg·K |
| Electrical Resistivity | 72 μΩ·cm |
| Thermal Expansion (20-100°C) | 17.2 μm/m·°C |
Available Sizes and Dimensions
GXH Steels supplies Stainless Steel 303 Pipes in the following size range:
| Specification | Range |
|---|---|
| Nominal Pipe Size | 1/8″ to 24″ NPS (DN6 to DN600) |
| Wall Thickness | 0.5mm to 50mm |
| Length | Up to 12 meters (random or fixed) |
| Schedules Available | 5S, 10S, 40S, 80S, SCH 10, SCH 40, SCH 80, SCH 160, XXS |
Applicable Standards
Stainless Steel 303 Pipes conform to these industry standards:
- Seamless Pipes: ASTM A312, ASTM A213, ASTM A269
- Welded Pipes: ASTM A312, ASTM A358, ASTM A409
- Tubes: ASTM A213, ASTM A249, ASTM A269
- General: EN 10088, JIS G4304/G4305
Applications
Stainless Steel 303 Pipes work well for:
- Screws
- Bolts
- Nuts
- Fastener manufacturing industry installations
Benefits
Choosing Stainless Steel 303 Pipes saves you money on replacements and downtime. The material handles screws and bolts conditions without degrading quickly. You get pipes that perform as expected, backed by GXH Steels’s technical support.
Why GXH Steels?
GXH Steels has supplied stainless steel products to fastener manufacturing and machinery sectors for years. Our team knows the technical details of each grade. We help you pick the right specification for your project and provide documentation for your quality requirements.
Get Stainless Steel 303 Pipes Today
Ready to order? Contact our sales team for pricing and availability on Stainless Steel 303 Pipes.
Request a Quote | Learn About Us
Related Products
Explore more stainless steel pipe grades from GXH Steels: