What are SS 347 Stainless Steel Angles?
What are SS 347 Stainless Steel Angles?
SS 347 stainless steel angles are titanium-stabilized austenitic stainless profiles that offer excellent resistance to intergranular corrosion and weld decay, especially during prolonged exposure to elevated temperatures or post-weld heat. The titanium content inhibits carbide precipitation, making SS 347 ideal for welded structures operating in cyclical thermal environments.
SS 347 Stainless Steel Angles Specifications
| Property | Specification |
|---|---|
| Material Grade | SS 347 |
| UNS Number | S34700 |
| EN / WNR | 1.4550 / X6CrNiNb18-10 |
| Sizes | 20×20 mm to 150×150 mm (Equal & Unequal Angles) |
| Thickness | 3 mm – 12 mm |
| Length | 3m, 6m, or custom cuts |
| Surface Finishes | HRAP, No. 1, No. 4, Pickled, Polished |
| Standards | ASTM A276, ASME SA276, EN 10088, DIN 1.4550 |
Types of SS 347 Stainless Steel Angles
Chemical Composition of SS 347 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 – 13.0 |
| Titanium (Ti) | ≥5× C (min) |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
Mechanical Properties of SS 347 Stainless Steel Angles
| Property | Value |
|---|---|
| Tensile Strength | 515 – 690 MPa |
| Yield Strength | 205 MPa min |
| Elongation | 40% min |
| Hardness | ≤ 90 HRB |
| Service Temperature | Up to 900°C (1650°F) |
Applications of SS 347 Stainless Steel Angles
SS 347 angles are ideal for fabricated, welded, and heat-exposed structures, including:
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
People Also Search For
- SS 347 Stainless Steel Angles for High-Temperature Service
- ASTM A276 SS 347 Equal & Unequal Angle Bar
- SS 347 vs SS 321 – Which Angle Grade is Better?
- Weld-Decaying Resistant SS 347 Angles
- SS 347 Angle Bars for Heat Exchangers & Boilers
- Buy SS 347 Angles with Titanium Stabilization
Frequently Asked Questions
What makes SS 347 suitable for welding?
Can SS 347 be used at high temperatures?
Are mirror or polished finishes available for SS 347 angles?
What’s the difference between SS 321 and SS 347?
Do you offer documentation for export compliance?
