Stainless Steel 321 Pipes bring titanium prevents carbide precipitation to your projects. GXH Steels supplies these pipes for demanding industrial applications where standard grades fall short.
What Is Stainless Steel 321?
Grade 321 stainless steel belongs to the Austenitic family. It contains 18% Cr, 10% Ni, Ti stabilized. This composition gives the material its titanium prevents carbide precipitation.
GXH Steels manufactures Stainless Steel 321 Pipes to meet ASTM and international standards. Each pipe goes through quality checks before shipping.
For applications needing non-stabilized alternative, Stainless Steel 304 Pipes provide an excellent choice.
Key Features
Here’s what sets Stainless Steel 321 Pipes apart:
- Corrosion Resistance – Excellent for welded high-temperature service.
- Temperature Performance – Rated for service up to 870°C continuous.
- Material Composition – Contains 18% Cr, 10% Ni, Ti stabilized for balanced properties.
- Quality Assurance – Every batch includes mill test certificates and documentation.
Projects requiring niobium-stabilized may also benefit from Grade 347 Pipes.
Stainless Steel 321 Pipes Chemical Composition
The chemical composition of Grade 321 stainless steel per ASTM/AISI standards:
| Element | Composition (%) |
|---|---|
| C | 0.08 |
| Mn | 2.00 |
| Si | 0.75 |
| P | 0.045 |
| S | 0.030 |
| Cr | 17.0-19.0 |
| Ni | 9.0-12.0 |
| Ti | 5xC min |
Stainless Steel 321 Pipes Mechanical Properties
Mechanical properties of Grade 321 in annealed condition:
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa (74694 psi) |
| Yield Strength (0.2%) | 205 MPa (29732 psi) |
| Elongation (in 50mm) | 40% |
| Hardness | 183 HB (Brinell) |
Stainless Steel 321 Pipes Physical Properties
Physical characteristics of Grade 321 stainless steel:
| Property | Value |
|---|---|
| Density | 7.92 g/cm³ |
| Melting Range | 1400-1425°C |
| Thermal Conductivity (at 100°C) | 16.1 W/m·K |
| Specific Heat | 500 J/kg·K |
| Electrical Resistivity | 72 μΩ·cm |
| Thermal Expansion (20-100°C) | 16.6 μm/m·°C |
Available Sizes and Dimensions
GXH Steels supplies Stainless Steel 321 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 321 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 321 Pipes work well for:
- Aircraft exhaust systems
- Expansion joints
- Bellows
- Aerospace industry installations
Many industries also specify SS 316 for marine use in demanding environments.
Benefits
Choosing Stainless Steel 321 Pipes saves you money on replacements and downtime. The material handles aircraft exhaust systems and expansion joints 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 aerospace and petrochemical 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.
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