347 SS Bars, Stainless Steel UNS S34700 Rod, SS 347 Round Bar Supplier, Stockist of SS 347 Round Rod In Mumbai, Stainless Steel DIN 1.4961 Round Bars, Stainless Steel 347 Rods / Bars Exporter, Stainless Steel 347 Round Bar Manufacturer India.
Stainless Steel 347/347H Round Bar is available in market from many manufacture but if you want to choose the best one and never want to face any kind of quality issue then Skytech Rolling is there for you. We are the top manufacturer of stainless steel products and there is a huge range offered. The SS 347/347H Round Bar is offered corrosion free and it has the higher melting points as well as it is delivered to your abrasion free. The quality is ensured by our team and our products are tested before the dispatch which makes us the leading exporter. The quality is surely the reason behind our popularity and the good thing is reasonable prices. This factor is making us the best one and helping in go up.
The tensile and yield strength is tested and most of the time we found that it is able to provide 70,000 psi tensile and 30,000 psi yield strength. On the cold temperature, it is able to serve the best quality and hard nature with ease. The SS 347 graded is used in industries and it is also used in many home appliances. Surely the quality is ready to serve you in many works. The durability is extremely high and the credit goes to right use of proposition. Even the corrosion free nature makes it one of the best to purchase. These are factors making Skytech as the leading manufacturer, supplier and exporter globally as well as in the local cities.
SS 347H Rods / Bars Exporter In India, SS UNS S34700 Round Bar, SS DIN 1.4961 Round Rods Manufacturer, 347H StainlessSS Round Bar, SS 347H Round Bar Supplier, 347H Steel Round Rods Stockist, SS 347H Rods Supplier In Mumbai, India.
Grade 347 round bars are stabilized with niobium, which ties up carbon and keeps chromium free to protect against intergranular corrosion after welding. SS 347H uses the same base chemistry, but its 0.04% to 0.10% carbon content promotes coarser grains for sustained high-temperature service. Both grades resist oxidation up to 870°C and handle polythionic acid in sour environments. Niobium also separates them from 321 stainless steel, since niobium carbides remain stable where titanium carbides can degrade. Refineries, fertilizer plants, and power facilities use ASTM A276 Type 347 bars for repeated thermal cycling, with full batch traceability supplied by the manufacturer.
Round bars remain the primary product in the 347/347H lineup, but the alloy is also available as bright, hex, square, flat, and forged bars to suit varied applications. Standard bar material is produced to ASTM A276, pressure-vessel bars to ASTM A479, and forged flanges and fittings to ASTM A182. Available sizes run from 6 mm to 350 mm, with bright, black, and polished finishes plus custom-cut lengths. Niobium improves oxidation resistance under continuous heat exposure while reliable creep strength maintains long boiler-tube service. The controlled carbide precipitation in thick sections allows these grades to be generally welded without post-weld heat treatment. These grades are well suited for superheater and reheater tubing applications with demanding thermal cycles.
Why Choose This Mill for SS 347/347H Round Bars
Sourcing 347/347H bars from a mill that controls the entire process, from raw material to final cut, removes the guesswork from procurement. Here's what sets the right supplier apart.
- ● Raw material comes from certified mills with mill test certificates accompanying every heat lot.
- ● All round bars meet ASTM A276, A479, and A182 specifications with dimensional tolerances verified before dispatch.
- ● Inventory across multiple diameters and lengths means most standard orders ship without waiting on a fresh rolling run.
- ● Custom cutting services bring bars down to exact project lengths, cutting down on on-site fabrication waste.
- ● We keep our prices competitive by dealing directly with the mills, rather than having our product marked up at several different points in a distribution chain.
- ● Export documentation, including certificates of origin and packing lists, gets prepared for shipments to over 40 countries.
- ● Standard orders leave the facility within 7 to 10 working days of confirmation.
- ● Before release, each batch undergoes mechanical testing, intergranular corrosion testing and spectro analysis.
- ● Technical teams assist with grade selection when a project sits on the line between 347 and 347H.
- ● Bars get wrapped in corrosion-resistant packaging suited for sea freight and long transit times.
347SS Round Bar
Stainless Steel 347/347H Round Bars
SS 347H Round Bars
SS 347/347H Round Bars Specification :
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface : hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline
Range : Range – 3.17mm to 350mm dia
Stainless Steel 347/347H Round Bar Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
| SS 347 | 1.4961 | S34700 |
| SS 347H | 1.4550 | S34709 |
SS 347/347H Round Rod Chemical Composition :
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 347 | 0.08 max. | 17.0 – 19.0 | 2.00 max. | 9.0-13.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| SS 347H | 0.04 – 0.10 | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
SS 347/347H Round Bars Mechanical Properties :
| Element | Density | Melting Range,℃ | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 347/347H | 7.96 | 1450 ℃ | 515 | 205 | 40 | 201 |
Sizes and Weight
| ROUNDS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.49 | 1.60 |
| 18 | 0.62 | 2.02 |
| 20 | 0.76 | 2.49 |
| 22 | 0.92 | 3.02 |
| 25 | 1.19 | 3.90 |
| 28 | 1.49 | 4.89 |
| 28 | 1.49 | 4.89 |
| 30 | 1.71 | 5.61 |
| 32 | 1.95 | 6.38 |
| 36 | 2.46 | 8.08 |
| 38 | 2.74 | 9.00 |
| 40 | 3.04 | 9.97 |
| 45 | 3.85 | 12.62 |
| 50 | 4.75 | 12.62 |
| 56 | 8.96 | 19.55 |
| 60 | 6.84 | 22.44 |
| 65 | 8.03 | 26.34 |
| 70 | 9.31 | 30.54 |
| 75 | 10.69 | 35.06 |
| 80 | 12.16 | 39.89 |
| 90 | 15.39 | 50.49 |
| 100 | 19 | 62.34 |
Our Export market
New York, Hyderabad, Gimhae-si, Perth, Courbevoie, Baroda, Toronto, Haryana, Kanpur, Ranchi, Kuala Lumpur, Hong Kong, Sydney, Jakarta, Ho Chi Minh City, Mexico City, Edmonton, Al Jubail, Sharjah, Gurgaon, Busan, Noida, Brisbane, Pune, Surat, Milan, Hanoi, Indore, Muscat, La Victoria, Abu Dhabi, Ulsan, Vung Tau, Rio de Janeiro, Lagos, Dubai, Vadodara, Jeddah, Ahvaz, Chandigarh, Petaling Jaya, New Delhi, Istanbul, Pimpri-Chinchwad, Ernakulam, Chiyoda, Nashik, Santiago, Secunderabad, Montreal, Los Angeles, Coimbatore, Ludhiana, Bogota, Cairo, Howrah, Seoul, Caracas, Melbourne, Al Khobar, Navi Mumbai, Houston, Jaipur, Thiruvananthapuram, Algiers, Chennai, Rajkot, Faridabad, Jamshedpur, Port-of-Spain, Singapore, Kolkata, Granada, Moscow, Ankara, Dallas, Visakhapatnam, Kuwait City, Ahmedabad, Doha, Manama, Bengaluru, London, Thane, Bhopal, Atyrau, Riyadh, Mumbai, Colombo, Lahore, Karachi, Bangkok, Calgary, Aberdeen, Madrid, Nagpur, Tehran, Geoje-si, Dammam.
Indonesia, Sri Lanka, Thailand, Hong Kong, Ireland, Yemen, Bolivia, Libya, Namibia, Iran, Azerbaijan, Portugal, Slovakia, Finland, Mexico, Singapore, New Zealand, Japan, Spain, United Kingdom, Australia, Germany, Netherlands, Kuwait, Serbia, Estonia, Brazil, Algeria, Poland, Bangladesh, Mongolia, Venezuela, Romania, Angola, Qatar, Zimbabwe, Norway, Turkey, Lebanon, Costa Rica, China, United States, Trinidad & Tobago,Tunisia, Canada, Colombia, Ecuador, Pakistan, South Korea, Poland, Nepal, India, Saudi Arabia, Belgium, Vietnam, Switzerland, Ukraine, Czech Republic, Morocco, Nigeria, Tibet, Malaysia, Denmark, Ghana, Mexico, Iraq, Austria, Israel, Bhutan, Egypt, Kenya, Iran, United Arab Emirates, Kazakhstan, Gabon, Jordan, Bahrain, Hungary, Greece, Oman, Lithuania, Macau, Argentina, Gambia, Nigeria, Puerto Rico, France, Peru, Taiwan, Belarus, Bulgaria, Chile, Philippines, Russia, Croatia, Sweden, Afghanistan, South Africa, Italy, Chile.
Frequently Asked Questions
SS 347 has less than 0.08% carbon while SS 347H has a minimum carbon content of 0.04% and a maximum of 0.10% which improves its high temperature strength for continuous service above 540°C.
Yes. Niobium stabilization prevents carbide precipitation at weld zones, so both grades weld cleanly without post-weld heat treatment in most fabrication scenarios.
Yes, using carbide tooling and slower feed rates. The coarser grain structure machines predictably, and bars take to forging, bending, and forming without cracking.
Yes. It provides resistance to oxidation to 1640°F and maintains creep strength at elevated temperatures over long periods. The grade is the standard for superheater tubing and reformer furnace parts.