Stainless Steel 347 Fasteners

Stainless Steel 347 Hex Nut, SS DIN 1.4550 Allen Cap Screw Suppling at Saudhi Arabia, ASTM A193 SS Threaded Stud Manufacturer, Stainless Steel 347 Hexagon Nut, SS 347 Hex Domed Cap Nuts Suppling at Spain, Stainless Steel 347 Hex Head Screw Manufacturer & Stockist in Mumbai, India.

Alpha Overseas manufactures and exports these SS 347 Fasteners, which is advantageous for high temperature service because of its good mechanical properties. Alloy 347 Fasteners has a slightly improved corrosion resistance over other alloys of stainless steel in strongly oxidizing environments as a result of the addition of columbium (niobium) and tantalum. The addition of columbium also allows Grade 347 Fasteners to have excellent corrosion resistance, even superior to that of alloy 321. And thus, machining Type 347 Fasteners is slightly tougher than that of grade 304 steel. AISI 347 Stud Bolts is often used in high temperature gaskets, rocket engine parts, expansion joints, etc. While 347 Stainless Steel Fasteners continue to be employed for prolonged service in the 800 Degree F to 1500 Degree F (427 Degree C to 816 Degree C) temperature range, Type 304L has supplanted these stabilized grades for applications involving only welding or short time heating. Stainless Steel 347 Nuts offers good resistance to polythionic acid stress corrosion cracking, encountered in oil refineries.

Stainless Steel 347 Fasteners
Stainless Steel 347 Fasteners
SS 347 Fasteners
SS 347 Fasteners

Stainless Steel 347 Square Neck Bolts, SS UNS S34700 Stud Bolts Suppling at Turkey, Stainless Steel 347 Spring Washers Manufacturing at Tanzania, SS 347 Self Tapping Screw Manufacturing at Austria, Stainless Steel 347 T-Head Bolts, SS 347 Threaded Rods, SS 347 Fasteners Supplier & Exporter in Mumbai India.

The intergranular corrosion resistance in Stainless Steel 347 Bolts is better than 308-type electrodes. Stainless Steel 347 Washers is similar to SS 321 with respect to intergranular corrosion which is achieved through the use of columbium as a stabilizing element to maximize this feature.

Stainless Steel 347 Screws has a soaring resistance to lengthened heat and corrosion making it well appropriate for power generation, welded fabrications, engine and other elevated heat applications.


ASTM A193, ASTM A194 SS Fasteners Specification :

Specifications : ASTM A193 / A193, ASME SA193 / SA194

Standards : DIN, ASTM, BS and all International Standards

Length : 3 mm to 200 mm

Size : M02 to M33

Nuts Size : M3 - M56 | 3/6" to 2" | Custom Sizes

Bolt / Screw Size : M3 - M56 | 3/6" to 2" | Custom Sizes

Machine Screws Size : M1.6 - M12

Washers Size : M3 - M56 | 3/6" to 2" | Custom Sizes


SS 347 Fasteners Equivalent Grades

SS 347 1.4550 S34700


Stainless Steel 347 Fasteners Chemical Composition

Element Ni C Mn P S Si Cr
SS 347 9.00 – 13.00 0.08 2.00 0.045 0.030 1.00 17.0-20.0


SS Fasteners Mechanical & Physical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
SS 347 8.0 g/cm3 1454 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 40 %

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


  • We understand the importance of packaging specially in case of international shipments as the consignment has to go through a number of channels to reach the final destination, thus we take proper care of packing.
  • We pack our goods in a various ways depending on the products. The different ways in which our products are packed are:
    • Shrink-wrapped
    • Wooden Boxes
    • Wooden Pallets
    • Wooden Crates
    • Carton boxes


  • All our products will have complete marking details which are co-related to the test certificates we supply.
  • In case of orders for cut piece of Pipes, Sheets or Round Bars, the marking is transferred from the product from which it is cut. In such cases we provide Letter confirming the marking transfer and picture of the product from which it is cut.


Delivery Time:
  • If the items are available in stock, we take 2 days from the date of receipt of advance payment to clear the shipment and send it to port.
  • And in-case the items are not availabe in stock, the time taken for manufacturing depends on the size, quantity and grade.
  • However we can claim the fact that we can compete with anyone in India on Delivery time and most of the time our production time is the least.
  • We have tied up with strong logistic partners in India which can undertake any type of shipping activites and make sure that there is no delay in shipment.


  • We welcome stage wise inspection, final stage inspection from any of your representative or third party inspection agencies.
  • We regularly have inspections ongoing at our premises from internationally acclaimed Inspection Agencies such as TUV, Llyods, BVIS, SGS, DNV etc.


  • Furnaces (piping, doors, burners, fans and recuperators)
  • Components (Cryogenic)
  • Industries processing food
  • Bed Furnaces (Fluidized) suc as grids, wind boxes, piping, coal combustors
  • Stainless Steel 347 is used in smelter and steel melting equipment, continuous casting equipment in Steel Plants and Ore Processing Plants
  • Petroleum and Petrochemical refineries for catalytic recovery systems, flares, recuperators, tube hangers
  • Stainless Steel 347 is used in Power Generation for coal gasifier internals, pulverized coal burners, tube hangers
  • Sintering/Cement Plants – burner shields, burners, wind boxes feeding and discharging systems
  • Thermal Process Plants for annealing covers and boxes, burner grids, doors, fans, muffles and retorts, recuperators, walking beams

Other Types Of SS Fasteners
  • Stainless Steel 347 Fasteners
  • SS 347 Bolts Stockist
  • Stainless Steel 347 Screw
  • Stainless UNS S34700 Nuts
  • SS 347 Washers Exporter
  • ASTM A193 SS 347 Allen Cap Screw
  • ASME A194 Stainless Steel Machine Screws Suppliers at Algeri
  • SS 347 Hexagon Nuts Stockist
  • SS 347 U Bolts Manufacturer
  • 347 SS Spring Washers Dealers
  • Stainless Steel DIN 1.4550 Foundation Bolts
  • Stainless Steel 347 J Bolts
  • SS 347 Fasteners
  • Stainless Steel 347 Mushroom Head Square Neck Bolts
  • SS DIN 1.4550 Hex Head Screw Suppliers
  • SS UNS S34700 Threaded Stud
  • 347 Stainless Steel Hex Domed Cap Nuts Suppliers at UAE
  • 347 Stainless Steel Marine Anchors
  • SS 347 Eye Bolts
  • 347 SS Spring Washers Exporter
  • 347 SS Pan Head Screw
  • Stainless Steel 347 T-Head Bolts
  • SS 347 Wing Screw Exporter
  • Stainless Steel 347 Structural Bolts

Approved manufacturer of
Sabic approved Stainless Steel 347 Bolts
KNPC approved SS 347 Nuts
Williamson approved SS 347 Steel Screw
MARAFIQ approved Stainless Steel 347 Washers
Magnetrol approved 347 Threaded Stud
QATARGAS approved 347 Stainless Steel Allen Cap Screw
ONGC approved Stainless Steel 347 Machine Screws
FW approved Stainless Steel 347 Hexagon Nuts
IBR approved SS 347 Hex Domed Cap Nuts
Alba approved Stainless Steel 347 Stud
Kuwait Oil Company approved 347 U Bolts
Egyptian General Petroleum Corporation approved Stainless Steel 347 Spring Washers
Industry We Serve
Stainless Steel 347 Foundation Bolts in Petrochemical Industry
Structural Bolts in Oil & Gas Industry
ASTM A182 Stainless Steel 347 Anchors in Power Plant
ASTM A276 Stainless Steel 347 Pan Head Screw in Pharmaceuticals Industry
347 SS Hexagonal J Bolts in Chemicals Industry at Oman
SS 347 Hex Domed Cap Nuts in Defence Industry
347 Stainless Steel Square Nut in Food and Beverages Industry
SS 347 Stud Bolts in Sugar Industry
Stainless Steel 347 Head Bolts in Paper Industry
347 Stainless T-Head Bolts in Cement Industry
347 Eye Bolt Dairy Industry
Fasteners in Mining Industry

We Supply Our Stainless Steel 347 Fasteners in Countries like


We are Exports in Exporting SS 347 Fasteners worldwide

We are Exporter of Stainless Steel 347 Fasteners in Worldwide Such as Qatar, Algeria, Israel, Macau, Bulgaria, Slovakia, Chile, Zimbabwe, Mexico, Namibia, Bhutan, Belgium, Iran, Philippines, Nepal, Lithuania, China, Australia, Thailand, Austria, Tibet, Argentina, Netherlands, Serbia, Bahrain, Gambia, Afghanistan, Lebanon, Iran, Peru, New Zealand, United Kingdom, Egypt, Greece, Sri Lanka, Angola, Nigeria, Belarus, Ghana, Estonia, Costa Rica, Russia, Oman, Bolivia, Mongolia, Iraq, Taiwan, France, Ecuador, Pakistan, Hong Kong, Jordan, Croatia, United States, Ukraine, Morocco, Czech Republic, Vietnam, Sweden, Kazakhstan, South Africa, Venezuela, Poland, United Arab Emirates, Brazil, Gabon, Kenya, Saudi Arabia, Spain, Japan, Germany, Bangladesh, India, Singapore, Denmark, Turkey, Libya, Nigeria, Norway, Mexico, Puerto Rico, Trinidad & Tobago,Tunisia, Switzerland, Malaysia, Hungary, Italy, Yemen, Canada, Romania, Indonesia, Kuwait, Azerbaijan, Finland, Ireland, Poland, Portugal, South Korea, Colombia, Chile.

We have supplied of SS 347 Fasteners to following places

We are Suppliers of Stainless Steel 347 Fasteners in India Such as Secunderabad, Muscat, Milan, Gurgaon, Courbevoie, Jeddah, Lahore, Ahmedabad, Noida, Bangkok, Jaipur, Faridabad, Mumbai, London, New Delhi, Madrid, Chandigarh, Riyadh, Hanoi, Al Khobar, New York, Dallas, Lagos, Istanbul, Doha, Ahvaz, Hyderabad, Montreal, Coimbatore, Al Jubail, Kolkata, Hong Kong, Jakarta, Rio de Janeiro, Karachi, Kanpur, Abu Dhabi, Bogota, Petaling Jaya, Ho Chi Minh City, Navi Mumbai, Brisbane, Chennai, Geoje-si, Thiruvananthapuram, Jamshedpur, Manama, Toronto, Dammam, Sydney, Bengaluru, Pimpri-Chinchwad, La Victoria, Ankara, Santiago, Kuala Lumpur, Dubai, Ranchi, Tehran, Aberdeen, Colombo, Gimhae-si, Bhopal, Visakhapatnam, Kuwait City, Calgary, Nagpur, Sharjah, Ulsan, Cairo, Perth, Melbourne, Moscow, Ludhiana, Vadodara, Chiyoda, Vung Tau, Ernakulam, Atyrau, Port-of-Spain, Nashik, Singapore, Baroda, Pune, Edmonton, Caracas, Houston, Thane, Haryana, Howrah, Rajkot, Seoul, Indore, Mexico City, Algiers, Busan, Surat, Los Angeles, Granada.