Stainless Steel 310S Flanges Supplier

Stainless Steel 310S Flanges are high-temperature, high-performance piping components made of high-chromium, high-nickel composition for durable high temperature activities. The resulting robust chemical profile offers strength and good scale-resistance at severe temperatures which is significantly superior to typical austenitic grades. Bhansali Overseas leading manufacturer & suppliers of these components in several forms such as weld neck, slip-on and blind flanges which are manufactured in accordance with international standards such as ASME B16.5 and ASTM A182.

What are Stainless Steel 310S Flanges?

Grade 310S is an austenitic stainless steel carrying roughly 25% chromium and 20% nickel, a composition that gives it exceptional resistance to oxidation at temperatures up to around 1150°C. Flanges made from this grade connect pipe sections, valves, and equipment in systems where heat resistance matters as much as corrosion resistance.


Features & Benefits

High-temperature oxidation resistance is at the core of 310S's value, letting it perform in furnace and heat-treatment environments that would destroy standard 304 or 316 components. Low carbon content in the "S" variant limits carbide precipitation during welding, preserving corrosion resistance at the joint. The alloy also retains good strength and ductility across a wide temperature swing, from cryogenic conditions up through its high-temperature service range.

Types of Stainless Steel 310S Flanges

TBhansali Overseas stocks weld neck, slip-on, blind, socket weld, threaded, and lap joint flanges in 310S, manufactured to ASME B16.5 and B16.47 dimensional standards across a range of pressure classes.

Manufacturing Process

Production begins with forging round bar or plate stock under high pressure to achieve the correct grain flow for pressure-retaining service. Machining brings each flange to its final bore, face, and bolt-hole dimensions according to the applicable ASME standard. Heat treatment follows to relieve internal stress and restore a uniform microstructure before final finishing.

Quality & Testing

Each batch is tested for chemical composition and mechanical testing for tensile and yield strength to confirm it fulfils the specification. Dimensional inspection ensures bore, face and bolt-circle to the required. Surface and interior problems are screened with non-destructive testing such as dye penetrant and radiographic examination. Hydrostatic testing to confirm pressure integrity as required. Mill Test Certificate to EN10204 3.1 is issued with each flange.

Why Choose Bhansali Overseas?

We at Bhansali Overseas has high temperature 310S flanges in stock with complete material traceability for typical sizes. Our quality testing, long-standing supply relationships and technical support for custom engineering needs ensure reliable, high-performance piping components. Buy your critical high temperature infrastructure from a trusted manufacturer with confidence.

Applications

Furnace and heat-treatment equipment: 310S flanges connect piping exposed directly to sustained high-temperature service.

Petrochemical processing: High-temperature process lines depend on 310S for both heat and chemical resistance.

Power generation: Boiler and exhaust system piping uses 310S where oxidation resistance is critical.

Oil and gas: High-temperature refinery piping relies on 310S flanges for long-term reliability.

Chemical processing plants: Reactors and process equipment running at elevated temperatures use 310S connections to avoid scaling.

Stainless Steel 310S Flanges Equivalent Grades

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
SS 310S 1.4845 S31008 SUS 310S 310S16 20Ch23N18 - X8CrNi25-21

SS 310S Flanges Specification

Specification : ASTM A182 / A240, ASME SA182 / SA240

Dimensions : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Standard :ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc.

Pressure Ratings :Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.

Size : 1/2" (15 NB) to 48" (1200NB)

Flange Face Type :Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)


ASTM A182 / SA240 Stainless Steel 310S Flanges Useful Info

Element SS 310S
Ni 19.00 – 21.00
C 0.08 max
Mn 2.00 max
P 0.045 max
S 0.030 max
Si 1.00 max
Mo 0.75 max
Cr 24.00 – 26.00
Fe 53.095 min
Element SS 310S
Density 8.0 g/cm3
Melting Point 1454 °C (2650 °F)
Tensile Strength Psi – 75000 , MPa – 515
Yield Strength (0.2%Offset) Psi – 30000 , MPa – 205
Elongation 35 %

SS WERKSTOFF NR. 1.4841 Nippo Flanges Weight Chart

Pipe Normal Diam. O.D. Flange Thk. Of Flange Min Diam.
of
Hub
Diameter of Raised Face Length Hub.Y Thread Length Diam.
of Bolt
Circle
Diam.
of Bolt
Holes
Number
of Bolts
Diam. of
Bolts
(inch)
KG LB
inch dn O C X G Y T BC BH BN BD
1/2" 15 89.00 11.20 30.20 35.10 15.70 15.70 60.50 15.80 4 1/2" 0.4 0.9
3/4" 20 98.50 12.70 38.10 42.90 15.70 15.70 69.90 15.80 4 1/2" 0.7 1.5
1" 25 108.00 14.20 49.30 50.80 17.50 17.50 79.30 15.80 4 1/2" 0.8 1.8
1-1/4" 32 117.50 15.70 58.70 63.50 20.60 20.60 88.90 15.80 4 1/2" 1.2 2.6
1-1/2" 40 127.00 17.50 65.00 73.20 22.40 22.40 98.60 15.80 4 1/2" 1.5 3.3
2" 50 152.50 19.10 77.70 91.90 25.40 25.40 120.70 19.10 4 5/8" 2.3 5.1
2-1/2" 65 178.00 22.40 90.40 104.60 28.40 28.40 139.70 19.10 4 5/8" 3.7 8.1
3" 80 190.50 23.90 108.00 127.00 30.20 30.20 152.40 19.10 4 5/8" 4.1 9
3-1/2" 90 216.00 23.90 122.20 139.70 31.80 31.80 177.80 19.10 8 5/8" 5.1 11.2
4" 100 228.50 23.90 134.90 157.20 33.30 33.30 190.50 19.10 8 5/8" 5.9 13
5" 125 254.00 23.90 163.60 185.70 36.60 36.60 215.90 22.40 8 3/4" 7 15.4
6" 150 279.50 25.40 192.00 215.90 39.60 39.60 241.30 22.40 8 3/4" 8.4 18.5
8" 200 343.00 28.40 246.10 269.70 44.50 44.50 298.50 22.40 8 3/4" 13 28.6
10" 250 406.50 30.20 304.80 323.90 49.30 49.30 362.00 25.40 12 7/8" 18 39.5
12" 300 482.50 31.80 365.30 381.00 55.60 55.60 431.80 25.40 12 7/8" 29 64
14" 350 533.50 35.10 400.10 412.80 57.20 57.20 476.30 28.50 12 1" 39 86
16" 400 597.00 36.60 457.20 469.90 63.50 63.50 539.80 28.50 16 1" 47 103
18" 450 635.00 39.60 505.00 533.40 68.30 68.30 577.90 31.80 16 1 1/8" 57 126
20" 500 698.50 42.90 558.80 584.20 73.20 73.20 635.00 31.80 20 1 1/8" 76 167
24" 600 813.00 47.80 663.40 692.20 82.60 82.60 749.30 35.10 20 1 1/4" 97 214

Price list of Stainless Steel F310 Plate Flange

ASTM A182 Gr F310 Pipe Flange Price Per Piece in India ASTM A182 Grade F310 Flange Price in INR ASTM A182 Grade F310 Flange Price in UAE Dirham
Stainless Steel ASTM A182 F310 Slip on Flanges Price List Rs. 1185.96 UAE Dirham 61.35
ASTM A182 Gr F310 Flanges Price per Kg Rs. 1420.31 UAE Dirham 73.48
ASTM A182 Grade F310 Blind Flanges Price in India Rs. 617.83 UAE Dirham 31.96
310 Stainless Steel Flanges Cost in Mumbai Rs. 994.22 UAE Dirham 51.44
Cost of SA182 F310 Pipe Flanges in Mumbai Rs. 355.08 UAE Dirham 18.37

SS 310S Pipe Flanges Supplier

We Supply SS 310S Pipe Flanges in Bengaluru, Thiruvananthapuram, Ho Chi Minh City, London, Colombo, Rio de Janeiro, Dammam, Gimhae-si, Chennai, Chiyoda, Manama, Kuala Lumpur, Jaipur, Ahvaz, Doha, Aberdeen, Sydney, Edmonton, New York, Kanpur, Ernakulam, Haryana, Jakarta, Brisbane, Ulsan, Petaling Jaya, Tehran, Granada, Nashik, Chandigarh, Vung Tau, Calgary, Mexico City, Indore, Bhopal, Bogota, Cairo, Ranchi, Mumbai, Hanoi, Bangkok, Al Khobar, Dallas, Geoje-si, Ludhiana, Pune, Courbevoie, Abu Dhabi, Visakhapatnam, Atyrau, New Delhi, Santiago, Moscow, Seoul, Perth, Howrah, Dubai, Jeddah, Busan, Coimbatore, Secunderabad, Riyadh, Hong Kong, Lagos, Vadodara, Sharjah, Faridabad, Milan, Navi Mumbai, Istanbul, Toronto, Port-of-Spain, Karachi, Lahore, Kuwait City, Gurgaon, Baroda, Algiers, Noida, La Victoria, Pimpri-Chinchwad, Montreal, Muscat, Ahmedabad, Melbourne, Singapore, Los Angeles, Al Jubail, Jamshedpur, Rajkot, Surat, Ankara, Madrid, Thane, Hyderabad, Houston, Caracas, Kolkata, Nagpur.

Stainless Steel 310S Plate Flanges Availability Worldwide

We Export SS 310S Plate Flanges in Switzerland, Indonesia, Thailand, Colombia, Japan, Netherlands, New Zealand, Saudi Arabia, Poland, South Africa, Iran, Nigeria, Venezuela, Sri Lanka, Canada, Algeria, Hungary, Costa Rica, Finland, Turkey, Ireland, Denmark, Chile, Slovakia, Norway, Bhutan, Serbia, Bahrain, Bangladesh, Malaysia, Iraq, South Korea, Iran, Afghanistan, Austria, Greece, Romania, Egypt, Mongolia, Kazakhstan, Zimbabwe, Nigeria, Mexico, Argentina, Belarus, Philippines, Yemen, Hong Kong, Tibet, Sweden, Chile, France, Singapore, United States, Ghana, Ecuador, Italy, Spain, Puerto Rico, United Arab Emirates, Peru, Angola, Ukraine, Lebanon, Germany, Vietnam, Nepal, Gambia, Croatia, Jordan, Portugal, Russia, Kuwait, Australia, Kenya, Oman, India, Taiwan, Libya, Czech Republic, Brazil, Estonia, Belgium, Namibia, Israel, Bulgaria, Mexico, Azerbaijan, China, Pakistan, Trinidad & Tobago,Tunisia, Qatar, United Kingdom, Macau, Morocco, Bolivia, Poland, Gabon, Lithuania.

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Stainless Steel 310S Flanges Application Industry