Labdhi Metals is a trusted manufacturer, stockist, and exporter of high-performance Stainless Steel 347 Fittings, known for their excellent strength, durability, and resistance to intergranular corrosion. Stainless Steel 347 is a stabilized austenitic stainless steel containing niobium (columbium), which helps prevent chromium carbide precipitation during welding and high-temperature service. These fittings are ideal for demanding industrial applications where resistance to thermal fatigue and high-temperature oxidation is essential.
The primary advantage of SS 347 fittings is their superior performance in environments subjected to continuous or repeated heat cycles. The stabilization provided by niobium makes them ideal for use in chemical processing, heat exchangers, refineries, petrochemicals, and power plants. Labdhi Metals manufactures a wide variety of fittings including elbows, tees, reducers, caps, stub ends, and crosses in both seamless and welded forms.
All fittings are produced as per international specifications such as ASTM A403 / ASME SA403, and dimensional standards like ASME B16.9, B16.11, and MSS-SP-43. Labdhi Metals ensures these fittings are available in multiple pressure ratings (e.g., 150#, 300#, 600#) and sizes ranging from ½” NB to 24” NB. Custom sizes and fabrication services are also offered to meet project-specific requirements.
As a reliable stockist, Labdhi Metals maintains a large inventory of SS 347 fittings, enabling fast delivery across India and export markets such as the USA, Germany, UAE, Saudi Arabia, Qatar, and South Africa. All products are supplied with Mill Test Certificates (MTCs), third-party inspection reports, and documentation confirming compliance with required specifications.
Standard | ASTM A403 / ASME SA403 |
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Grade | Stainless Steel 347 |
Size Range | ½" NB to 24" NB |
Type | Seamless, Welded |
Forms | Elbows, Tees, Reducers, Caps, Stub Ends, Crosses |
Dimensions | ASME B16.9, B16.11, MSS-SP-43 |
Pressure Ratings | 150#, 300#, 600#, 900#, 1500# |
With ISO-certified facilities, a skilled workforce, and a strong commitment to quality, Labdhi Metals continues to provide dependable stainless steel solutions to critical industries. Their SS 347 fittings are known for excellent weldability, high-temperature strength, and corrosion resistance, making them a preferred choice in aggressive and high-performance applications.
Element | SS 347 (%) |
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Carbon (C) | ≤ 0.08 |
Manganese (Mn) | ≤ 2.00 |
Silicon (Si) | ≤ 1.00 |
Phosphorus (P) | ≤ 0.045 |
Sulfur (S) | ≤ 0.030 |
Chromium (Cr) | 17.0 – 19.0 |
Nickel (Ni) | 9.0 – 13.0 |
Niobium (Nb + Ta) | ≤ 1.0 |
Property | SS 347 |
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Tensile Strength (MPa) | ≥ 515 |
Yield Strength (MPa) | ≥ 205 |
Elongation (%) | ≥ 30 |
Hardness (HRB) | ≤ 95 |