Shubham Metals is a trusted Stainless Steel 347 Buttweld Fittings Manufacturers in Bangalore, India and provides high temperature resistant and corrosion free piping fitting to industries with high requirement. The Stainless Steel 347 is a niobium-stabilized austenitic alloy that was designed to resist intergranular corrosion following welding and increasing temperatures. Due to this stabilization the SS 347 fittings are currently common to heat intensive process systems where structural integrity and corrosion resistance cannot be compromised.
We manufacture our fittings as per the internationally accepted standards like ASTM A403 WP347, as well as ASME B16.9, which are demonstrating tramsmanship in terms of dimension, metallurgical consistency, and reliable pressure performance.
Metallurgical Characteristics of Stainless Steel 347
S347 Stainless steel includes chromium (17-19%) and nickel (9-13%) to make it resistant to corrosion and strong. The only difference in this grade is that the amount of niobium is added controllably (at least 10 times more than the amount of carbon) such that it does not allow the formation of chromium carbide when welding or subjected to temperatures between 450degC and 850degC.
In most applications, post-weld heat treatment is not necessary, as SS 347 is able to sustain corrosion in welded sections without post-weld heat treatment as compared to unstabilized grades. The niobium makes stable carbides, leaving chromium in the alloy matrix and guarding against inter-granular attack at grain boundaries.
This renders Stainless Steel 347 particularly ideal in:
- Constant high temperature service to about 800degC.
- Temperature can be exposed to intermittently up to 870degC.
- Steam lines and boiler elements.
- Superheater tubing systems
- Thermal process piping
The international designations entail UNS S34700 and EN 1.4550.
Available Types of SS 347 Buttweld Fittings
Our products are a complete line of buttweld fittings which are used to control the direction of flow, branching and size change in industrial piping systems.
We have long and short radius elbows (45° and 90°), return bends, equal and reducing tees, concentric and eccentric reducers, stub ends that can be fit to lap joint flanges and end caps to secure termination of the pipeline. These fittings can be constructed seamlessly and welded according to the pressure category and the service demand.
The preference should be to use seamless fittings in high pressure and critical service pipelines whereas welded fittings are economical to use in normal operating conditions. They also have custom fabrication in case the EPC project needs non-standard dimensions or wall thickness.
Manufacturing & Quality Control Approach
All of the Stainless Steel 347 Buttweld Fittings provided by Shubham Metals are manufactured with certified niobium-stabilized raw material that is obtained at authorized mills. The manufacturing procedure consists of shaping operations which are either hot pressing, cold forming, or hydraulic shaping, and then trimming and beveling the parts to a strict degree of accuracy so that they can be properly welded.
Before final marking, dimensional inspection, wall thickness verification and surface evaluation is carried out. Every fitting has a heat number, and Mill Test Certificates (MTC) are provided to ensure all requirements of EN 10204 3.1. Further third party inspection can be requested.
Technical Scope & Supply Range
- Material Grade: Stainless Steel 347
- ASTM Specification: ASTM A403 WP347
- ASME Equivalent: SA403 WP347
- Dimensional Standards: ASME B16.9 / B16.28
- MSS Standard: MSS-SP-43
- Size Range: ½” NB to 48” NB
- Wall Thickness: SCH 5S to XXS
- End Preparation: Beveled for welding
- Pressure Rating: As per schedule and operating conditions
The mechanical characteristics are usually minimum tensile strength of 515 Mpa, yield strength of 205 Mpa and elongation of 35 and stability under thermal and mechanical load.
Performance Advantages in High-Temperature Applications
The Stainless Steel 347 can be used when higher temperatures are in place as it has a better creep resistance and high oxidation resistance compared to Stainless Steel 304 and 316. The niobium stabilization process makes the welded joints resistant to corrosion even when it is exposed to intense thermal conditions over time.
This renders SS 347 Buttweld Fittings very reliable in those systems where it is exposed to:
- Thermal cycling
- Superheated steam
- Oxidizing atmospheres
- Fluids with a high level of pressure.
The petrochemical refineries, fertilizer plants, power generation facilities, and heavy engineering units are also the industries that often define 347 grade due to its suitability under the challenging service conditions.
Inspection & Testing Services
In order to check that the project is provided with the necessary specifications and responds to the international quality demands, the following tests may be conducted:
- Positive Material Identification (PMI)
- Hydrostatic testing
- Ultrasonic testing (UT)
- Dye penetrant testing (DPT)
- Radiographic testing (RT)
- Third-party inspection (TPI)
This quality framework will guarantee the traceability, reliability, and risk reduction to the procurement teams and contractors of EPC.
Applications Across Industrial Sectors
There is a wide range of applications of Stainless Steel 347 Buttweld Fittings in high-temperature and corrosion-prone conditions in various industries:
- Boilers and boiler feed water.
- Reheater piping systems, superheaters.
- Those heat exchangers which work at high temperatures.
- Refinery process pipelines
- Chemical processing units and reactors.
- Distribution systems of high temperature steam.
- Power generation plants
- Empowerment of petrochemicals industry.
- Systems of industrial furnace and thermal processing.
- Aerospace structural and high-temperature products.
- Marine systems that are subjected to heat and corrosion conditions.
These fittings have been selected as they possess superior defense against intergranular corrosion, against oxidation at high temperature, and have great weld stability in the rigorous pipeline grid.
Stainless Steel 347 Buttweld Fittings Suppliers in Bangalore, India
Shubham Metals is a dependable high quality Stainless Steel 347 Buttweld Fittings Suppliers in Bangalore, India and serves the industrial customers with ready inventories, certified materials, and quick delivery. We have strategic inventory in terms of sizes, schedules, and types of fitting to maintain a continuous project implementation.
Our supply network is meant to serve time-sensitive industrial needs, such as power plants, refineries, chemical processing units and boiler systems in which the high-temperature resistance is a critical factor.
The reasons why Industry Buyers like our Supply Model:
- Large inventory in normal sizes.
- Certified niobiumstabilized SS 347 alloys.
- Fast processing of orders and a fast dispatch.
- Unified quality in bulk quantities.
- Grade selection and application technical support.
We also provide smooth supply chain to the contractors and procurement team that rely on reliable sourcing without delays.
Stainless Steel 347 Buttweld Fittings Dealers in Bangalore, India
We are best Stainless Steel 347 Buttweld Fittings Dealers in Bangalore, India , Our dealership program is designed to support fabricators, contractors, industrial traders, and regional distributors who require consistent access to premium-grade fittings.
As an certified suppliers, we will be able to provide our customers with authentic Stainless Steel 347 products that are fully traced and certified.
Dealer Benefits Include:
- Variable minimum order quantities.
- Wholesale competitive pricing.
- Priority stock allocation
- Fast logistics support
- Assistance in the technical documentation.
- High resale margin in the region.
In collaboration with our dealers, we also ensure local availability is enhanced but brand quality is upheld regardless of markets.
Stainless Steel 347 Buttweld Fittings Exporters from Bangalore, India
Shubham Metals also deals in high-quality Stainless Steel 347 Buttweld Fittings Exporters in Bangalore, India to foreign markets with appropriate documentation, quality certification and packaging in accordance with the export regulation.
Our export business is conducted in accordance to the international trade standards and this makes the international buyers who seek reliable stainless steel piping components to conduct their business at a very easy time.
Export Advantages:
- FOB and CIF shipping options
- Co-ordination of third party inspection (where necessary)
- Total support in export documentation.
- Traceable Mill Test Certificates (MTC).
- Watertight transport to ensure safety of overseas transport.
- Timely shipment scheduling
Our products are sold to areas that need highly-temperature stainless steel fittings in industrial infrastructural applications, which meet international standards of engineering.
Why Choose Shubham Metals for Stainless Steel 347 Buttweld Fittings?
Shubham Metals is a reliable manufacturer partner due to the fact that we have a combination of the technical, material management and customer oriented service under a single roof.
Our Core Strengths:
- Direct manufacturer whose quality of production is controlled.
- Distribution certified niobium-stabilized stainless steel.
- High-end forming, beveling and finishing technology.
- Stern dimensional check prior to shipment.
- Complete heat number marking.
- Stock on hand in case of emergency needs in the project.
- Competitive pricing for bulk and project orders
- International supply capability and PAN Bangalore, India .
- Technical support dedicated to the EPC contractors and procurement teams.
We are not only interested in the provision of fittings, but in the construction of quality engineering solutions, which decrease the downtime, enhance the life of the system, and match the industrial standards.
Get Expert Support for Your SS 347 Requirements!
When your project requires high-temperature, niobium-stabilized piping element, which is guaranteed to maintain integrity in weld and/or long service life, then our technical staff is pleased to help you. Since grade selection up to the verification of the dimensional and bulk pricing, we support the industrial procurement team end to end.
Technical Specifications
| Stainless Steel 347 Buttweld Fittings – Technical Specifications | |
|---|---|
| UNS Number | S34700 |
| ASTM Specification | A312 TP347 |
| Size Range | Seamless 1/2" to 24", Welded 6" to 48" |
| Type | Elbow 45°/90°/180°, Tee (Equal/Reducing), Reducer (Concentric/Eccentric), Cap, Stub End, Cross |
| Wall Schedule | SCH 10 to XXS |
| Standards | ASME B16.9, B16.28, MSS-SP-43, MSS-SP-75 |
| Manufacturing | Cold-formed / Hot-formed / Forged |
| End Finish | Bevelled End as per ASME B16.25 |
| Testing | Hydrostatic, PMI, Hardness, IGC, Ultrasonic, Dye Penetrant |
| Certification | EN 10204 3.1 / 3.2 Mill Test Certificate |
