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Alloy Steel F91 Flanges Manufacturer | Asme B16.47 Astm A182 F91 Chrome Moly Alloy Steel Flange

Alloy Steel F91 Flanges Manufacturer | Asme B16.47 Astm A182 F91 Chrome Moly Alloy Steel Flange

Specification Details
Flanges TypesSlip On, Lap Joint, Weld Neck, Long Weld Neck, Threaded, Blind, Companion
Class150 Lbs, Pn 6, 10, 300 Lbs, 16, 25, 600 Lbs, 40, 900 Lbs, 64, 100, 1500 Lbs, 160, 2500 Lbs Asa 150, Asa 300
Size1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000
TypeRaised Face (rf), Flat Face (ff), Small Male Female (smf), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Tongue & Groove, Large Male Female (lmf), Small Tongue, Groove

Alloy Steel F91 Flanges Manufacturer | ASTM A182 F91 ASME B16.5 Flange

Nitech Stainless Inc. has been known as a reputable Alloy Steel F91 Flanges Manufacturer, which produces high-quality flanges to be used in high-pressure and high-temperature applications of industrial systems. Alloy Steel F91 flanges are made out of chromium-molybdenum alloy steel and are characterized by their high mechanical strength and creep property, as well as oxidation property at high temperatures. They are common in power generation plants, petrochemical plants, refineries, and boiler systems where consistency in operation under stringent operating conditions is needed. Alloy Steel F91 Flanges are available in weld neck, slip, blind, socket weld, and threaded designs, which will guarantee leak-free connections to the critical piping as well as a long service life with better structural integrity.

Alloy Steel F91 Flanges are made per ASTM, ASME, ANSI, and DIN requirements and are highly durable, accurate in dimensions, and resistant to corrosion. These products are widely distributed by way of a steady b2b market to EPC contractors, fabrication industries, and industrial buyers across the globe. Alloy Steel Flanges find extensive application in the industrial piping networks due to their strength, ability to resist pressure, and reliability of sealing. Alloy Steel F91 Flanges are widely used in steam lines, pressure vessels, heat exchangers, thermal power stations, and chemical processing plants where the high-temperature resistance and operational safety are of utmost importance.

Material & Grades Table – Alloy Steel F91 Flanges

MaterialGradeStandardOD (mm)Thickness (mm)Weight (kg/m)
Alloy SteelF91ASTM A18215 – 150010 – 150As per size
Alloy SteelF91ASME SA18215 – 150010 – 150As per size
Alloy SteelF91ANSI B16.515 – 120010 – 120As per size
Alloy SteelF91DIN Standard15 – 100010 – 100As per size
Alloy SteelF91EN 1092-115 – 120010 – 120As per size
Alloy SteelF91MSS SP-4450 – 150015 – 150As per size
The table above summarizes the popular grades, standards, and dimensional requirements of Alloy Steel F91 Flanges in high-temperature and high-pressure industrial applications. The flanges are designed to deliver superior mechanical stress, thermal stability, and corrosion resistance, and they can be used in power plants, refineries, petrochemical plants, boilers, heat exchangers, and very important piping systems, which need reliable long-term operations.



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Frequently Asked Questions

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Countries We Export

  • India


Cities We Supply

  • Bangalore Urban

  • Hyderabad

  • Jaipur

  • Kalyan

  • Rampura

  • Sion, Mumbai

  • Surat

  • Thane

  • Gandhinagar

  • Rajahmundry

  • Panipat

  • Ahmadnagar

  • Ahmadpur

  • Bangalore Rural

  • Chandigarh

  • Chennai

  • Coimbatore

  • Haridwar

  • Jodhpur

  • Kolhapur

  • Mumbai

  • Murud (raigad)

  • Navi Mumbai

  • New Delhi

  • Rudrapur

  • Hosdurg

  • Durgapur

  • Ahmedabad

  • Jodhpur (ahmedabad)

  • Kolkata

  • Mumbai Suburban

  • Nashik

  • Raipur

  • Rajkot

  • Varanasi

  • Visakhapatnam

  • Angul

  • Bengaluru

  • Lucknow

  • Nagpur

  • Pune

  • Moradabad

  • Bharuch


Industries We Serve

  • Oil And Gas Industries industry

    Oil And Gas Industries

  • Gasket Industry industry

    Gasket Industry

  • Sugar industry

    Sugar

  • Automobile Industry industry

    Automobile Industry

  • Defense Industry industry

    Defense Industry

  • Construction & Fabrications industry

    Construction & Fabrications

  • Paper Mill industry

    Paper Mill

  • Bridge And Building industry

    Bridge And Building

  • Aerospace Industries industry

    Aerospace Industries

  • Railways industry

    Railways

  • Pharmaceuticals Industry industry

    Pharmaceuticals Industry

  • Power Plant industry

    Power Plant

  • Electrical Industry industry

    Electrical Industry

  • Ring Man Units industry

    Ring Man Units


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