SS 347 Stainless Steel Channels Manufacturer
Precision Alloy is a reliable manufacturer and global supplier of SS 347 stainless steel channels, delivering high-performance structural solutions for welded, high-temperature, and pressure-based applications. Engineered to meet standards like ASTM A276, ASME SA276, and EN 10088, our SS 347 channels are widely used across aerospace, chemical, thermal processing, and refinery sectors.
What are SS 347 Stainless Steel Channels?
SS 347 stainless steel channels are niobium (columbium)-stabilized austenitic stainless steel profiles that offer outstanding resistance to intergranular corrosion following welding or long-term exposure to high temperatures. SS 347 maintains its strength and oxidation resistance up to 900°C, making it ideal for cyclic thermal environments where structural reliability is critical.
Available in U-Channel, C-Channel, and custom-fabricated profiles, SS 347 channels are built for high-stress, high-temperature installations.
SS 347 Stainless Steel Channels Specifications
| Property | Specification |
|---|---|
| Material Grade | SS 347 |
| UNS Number | S34700 |
| EN / WNR | 1.4550 / X6CrNiNb18-10 |
| Channel Types | U-Channel, C-Channel, Custom Shapes |
| Sizes | 25 mm to 300 mm web height (custom sizes on request) |
| Thickness | 3 mm – 12 mm |
| Length | 3m, 6m, or custom cut-to-size |
| Surface Finishes | HRAP, No. 1, No. 4, Pickled, Polished |
| Standards | ASTM A276, ASME SA276, EN 10088, DIN 1.4550 |
Chemical Composition – SS 347 Stainless Steel Channels
| 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 |
| Niobium (Nb) | ≥ 10 × C (min) |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
Mechanical Properties – SS 347 Stainless Steel Channels
| 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 Channels
SS 347 Stainless Steel Channels is widely used in structural, fabrication, and sanitary applications:
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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