SS 321 Stainless Steel Angles Manufacturer
What are SS 321 Stainless Steel Angles?
SS 316 stainless steel angles are molybdenum-bearing austenitic stainless profiles that provide excellent resistance to pitting, crevice corrosion, and chloride attack, particularly in marine and chemical environments.
SS 316L is the low-carbon variant of SS 316, offering the same corrosion resistance with enhanced weldability and reduced risk of intergranular corrosion post-welding.
Both grades are available in equal and unequal leg angles, and are ideal for structural reinforcement, bracing, frames, and supports in corrosive or high-purity applications.
SS 321 Stainless Steel Angles Specifications
| Property | Specification |
|---|---|
| Material Grade | SS 321 |
| UNS Number | S32100 |
| EN / WNR | 1.4541 / X6CrNiTi18-10 |
| Sizes | 20×20 mm to 150×150 mm (Equal & Unequal Angles) |
| Thickness | 3 mm – 12 mm |
| Length | 3m, 6m, or custom cut sizes |
| Surface Finishes | Hot Rolled, Pickled, No. 1, No. 4, Polished |
| Standards | ASTM A276, ASME SA276, EN 10088, DIN 1.4541 |
Types of SS 321 Stainless Steel Angles
Chemical Composition of SS 321 Stainless Steel Angles
| Element | % Composition |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 12.0 |
| Titanium (Ti) | ≥5x C (min) |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
Mechanical Properties of SS 321 Stainless Steel Angles
| Property | Value |
|---|---|
| Tensile Strength | 515 – 690 MPa |
| Yield Strength | 205 MPa min |
| Elongation | 40% min |
| Hardness | ≤ 90 HRB |
| Working Temperature | Up to 900°C (1650°F) |
Applications of SS 321 Stainless Steel Angles
SS 321 angles are trusted in applications requiring both strength and thermal stability:
Construction & Infrastructure
Automotive & Transportation
Marine & Offshore
Aerospace & Defence
Oil & Gas Industry
Manufacturing & Industrial Machinery
Why Choose Precision Alloy?
- ISO 9001:2015 Certified Manufacturer
- Wide Range of Stainless Steel Bar Shapes & Sizes in Stock
- Surface Finish Options for Decorative or Industrial Use
- Customized Machining & Fast Lead Times
- Global Delivery with Competitive Pricing
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Frequently Asked Questions
What makes SS 321 better for high-temperature structures?
Can SS 321 be used in place of SS 304 or SS 316?
Are SS 321 angles weldable and formable?
Do you offer unequal leg SS 321 angles?
What finishes are available for SS 321 angles?
