What is Stainless Steel 347 fastener ?
347 Stainless Steel fasteners are austenitic stainless steel fasteners that are stabilized with columbium. These provide excellent resistance to corrosion. These fasteners also work great at elevated temperatures and reduce the amount of carbide precipitation that can occur at these high temperatures. These fasteners can also be very easily formed. 347 Stainless Steel fasteners possess the property of being weldable.
These fasteners can withstand a temperature up to 1500 degrees Fahrenheit. The cold working procedure is the only way these fasteners can be hardened. 347 Stainless Steel fasteners are highly durable and have an excellent surface finishing. Due to the elements present in the alloy of these fasteners, these fasteners could easily resist corrosion-related corrosion pitting and corrosion cracking.

STAINLESS STEEL DIN 1.4550 / 1.4961 NYLON INSERT NUT, SS UNS S34700 / S34709 WASHER HEAVY HEX NUTS, 347 SS DOUBLE ENDED STUD, STAINLESS STEEL 347H THREADED ROD, SS 347 FASTENER MANUFACTURER & STOCKIST IN MUMBAI, INDIA.
Sumit Impex is known for producing excellent quality 347 Stainless Steel fasteners. Also, these fasteners could be available in different shapes, sizes, and dimensions depending upon the user specifications and as well as the requirement of the application. To ensure the quality of the fasteners, they undergo a series of quality checks and other tests.
These fasteners are produced with excellent quality raw materials, and therefore they also have a long life as compared to the other fasteners. Due to all the properties and characteristics these fasteners contain, they are widely used in a large number of industrial applications. Sumit Impex also understands the requirements of the clients thoroughly and aims at providing the best quality products.
Stainless Steel 347 fastener Specifications
Grade | Stainless Steel 347 |
Specification | ASTM A 193 ASME SA 193 |
Standard | DIN, ASTM, BS and all International Standards |
Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
Length | 3 mm to 200 mm |
Form | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
Application | Most commonly used in petroleum refineries, Boilers, Heat exchangers, Condensers, Pipelines, Cooling towers, Steam exhausts, Electric generation plants, On occasion will be found in fertilizer and chemical plants. |
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
347 | S34700 | – | X6CrNiNb18-10 | 1.4550 | – | – | – |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
347 | min. | – | – | – | – | – | 17.0 | 2.00 | 9.0 | – |
max. | 0.08 | 2.0 | 1.00 | 0.045 | 0.030 | 20.0 | 3.00 | 13.0 | – |
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
347 | 515 | 205 | 40 | 95 | 201 |
Other Products
Stainless Steel 347 Eye Bolt | SS 347 Eye Bolt |
Stainless Steel 347 T Bolt | SS 347 T Bolt |
Stainless Steel 347 Hex Bolt | SS 347 Hex Bolt |
Stainless Steel 347 Lag Bolt | SS 347 Lag Bolt |
Stainless Steel 347 Counter sunk Bolt | SS 347 Steel Counter sunk Bolt |
Stainless Steel 347 Hex Head Nut | SS 347 Hex Head Nut |
Stainless Steel 347 fastener Price List
- 347 stainless steel Bolt/Nut
US $2500-4100 / Ton (FOB Price) - Bolt/Nut astm A193 347
US $600-1200 / Ton (FOB Price) - stainless steel Bolt/Nut 347
US $500-2000 / Ton (FOB Price) - ASTM A193 347 stainless steel Bolt/Nut
US $850-2200 / Metric Ton (FOB Price) - sA193 347 Bolt/Nut
US $1.5-9 / Kilogram (FOB Price) - 347 Bolt/Nut manufacturer
US $850-2200 / Metric Ton (FOB Price) - ASTM A193 Gr. 347 Bolt/Nut
US $500-1000 / Ton (FOB Price)

Packaging
We Sumit Impex Metal Ensure the best quality of Packing , because its play important role especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put extraordinary concern regarding packaging.
We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,
- Boxes and Crates
- Shrink-wrapped
- Carton boxes
- Wooden pallets
- Wooden boxes
- Wooden crates

Testings (Destructive, Non Destructive)
- Mechanical Testing Such as Tensile, Elongation, Reduction of Area
- Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
- Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
- Positive Material Identification – PMI Testing
- Chemical Analysis – Spectro Analysis
- Intergranular Corrosion (IGC) Test
- Pitting Resistance Test
- Dye Penetrant Test (DP Test)
- Micro Test
- Macro Test
- Hardness Test
- Flaring Test
- Flattening Test
- Hydrostatic Test
- Radiography Test
- Ultra Sonic Test (UT)
- Eddy Current Testing
- Impact Test
- Bend Test

Application Industries
These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.
- Construction
- Bridges
- Petrochemical Industry
- Ship Building
- Engineering
- General Structural Purposes
- Offshore and Onshore Services

Stainless Steel Sheet Manufacturers












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