Industrial Pipe Flanges, High-Pressure Precision.
Elite Steels Inc. manufactures forged & plate industrial pipe flanges from 15NB to 1500NB (1/2" to 60") in ratings Class 150# to 2500# across Stainless, Carbon, Alloy, Duplex, Inconel & Monel grades.
Engineered for High-Pressure & Corrosion Critical Service.
2. Flanges from Elite Steels Inc. are manufactured under strict ISO 9001:2015 quality controls. Engineered from certified high-purity alloys, each item offers flawless dimensional accuracy, superior mechanical strength, and long service life in challenging environments.
Trusted across oil & gas refineries, power plants, chemical process industries, offshore platforms, and heavy industrial engineering projects globally.
Technical Snapshot
- Size Range 15NB – 1500NB (1/2" to 60")
- Pressure Classes 150#, 300#, 600#, 900#, 1500#, 2500# / PN6-PN100
- Facing Types RF (Raised Face), FF (Flat Face), RTJ (Ring Joint)
- Standards ASME B16.5, ASME B16.47 Series A/B, EN 1092-1, DIN
- Material Certs EN 10204 3.1 & NACE MR0175
- Manufacturing Forged, CNC Turned & Drilled
Nine Alloy Families, Complete Traceability.
Explore our extensive alloy inventory for 1. Buttweld Fittings. Every product is supplied with complete raw material mill test reports to EN 10204 3.1.
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Stainless & Duplex Steel
02 / 09
Carbon & Alloy Steel
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Nickel & Copper Alloy
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Hastelloy Alloys
05 / 09
Inconel Alloys
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Incoloy Alloys
07 / 09
Monel Alloys
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Titanium Alloys
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Custom Fabrications
Available Types & Configurations in Stock.
Filter or click below to view configurations available for immediate dispatch.
ASME B16.5 Class 150 Pipe Flanges Dimensions Reference
Standard dimensional specifications reference chart according to ASME / ASTM engineering codes.
| Nominal Size (NB) | Flange OD | Thickness (C) | Bolt Circle Dia (Y) | Bolt Holes Qty | Hole Dia |
|---|---|---|---|---|---|
| 15 NB (1/2") | 89 mm | 11.2 mm | 60.3 mm | 4 | 15.9 mm |
| 20 NB (3/4") | 98 mm | 12.7 mm | 69.8 mm | 4 | 15.9 mm |
| 25 NB (1") | 108 mm | 14.3 mm | 79.4 mm | 4 | 15.9 mm |
| 40 NB (1.5") | 127 mm | 17.5 mm | 98.4 mm | 4 | 15.9 mm |
| 50 NB (2") | 152 mm | 19.1 mm | 120.7 mm | 4 | 19.1 mm |
| 80 NB (3") | 190 mm | 23.9 mm | 152.4 mm | 4 | 19.1 mm |
| 100 NB (4") | 229 mm | 23.9 mm | 190.5 mm | 8 | 19.1 mm |
| 150 NB (6") | 279 mm | 25.4 mm | 241.3 mm | 8 | 22.2 mm |
| 200 NB (8") | 343 mm | 28.6 mm | 298.5 mm | 8 | 22.2 mm |
| 300 NB (12") | 483 mm | 31.8 mm | 431.8 mm | 12 | 25.4 mm |
Three Decades of Manufacturing & Supply Excellence.
100% Traceability
Every order is supplied with authentic Mill Test Certificates (MTC) to EN 10204 3.1, NACE MR0175, and 100% PMI testing.
Precision CNC Machining
High-precision machining, smooth surface finish, and exact tolerances for effortless field installation.
Extensive Ready Stock
Largest ready inventory of standard stainless, carbon, alloy, and nickel components for urgent requirements.
Global Logistics
Swift PAN India dispatch and international export packaging compliant with ISPM-15 seaworthy standards.
