Inconel & Super Duplex Flanges
Y'all need Inconel or super duplex flanges without waitin' months to clear import customs? Texas Flange been stockin' and shippin' high-alloy flanges right out of the Greater Houston area since 1986. If you been chasin' quotes from overseas mills with long lead times and tariff headaches, I tell you what, this here is your domestic alternative.
High-Alloy Flange Grades We Carry
We supply these to ASME B16.5 (1/2" through 24") and ASME B16.47 Series A and B (26" and up), in raised face, RTJ, and flat face, and in weld neck, blind, slip-on, socket weld, lap joint, and threaded configurations. Flanges up to 12" NPS are kept right here in approved domestic stock, with them larger sizes USA-manufactured on a made-to-order basis whenever y'all need 'em.
Inconel 625
UNS N06625
ASTM B564 / ASME SB564
Nickel-chromium-molybdenum-niobium alloy. It's got excellent resistance to pittin', crevice corrosion, and a wide range of aggressive media across a broad temperature range.
Inconel 718
UNS N07718
ASTM B564 / ASME SB564
Age-hardenable nickel alloy with high strength for dem demandin' high-pressure and elevated-temperature jobs.
Incoloy 825
UNS N08825
ASTM B564 / ASME SB564
Nickel-iron-chromium with molybdenum and copper. It's a mighty strong performer in sulfuric and phosphoric acids and sour environments.
Super Duplex 2507
UNS S32750 (ASTM A182 F53)
ASTM A182 / ASME SA182
PREN above 40. High strength and outstandin' resistance to chloride stress-corrosion crackin'. A real workhorse for offshore, seawater, and chemical service.
Super Duplex S32760 (Zeron 100)
UNS S32760 (ASTM A182 F55)
ASTM A182 / ASME SA182
Super duplex grade with mighty fine corrosion resistance and toughness, widely specified for seawater and topside process pipin'.
Duplex 2205
UNS S31803 / S32205 (F51 / F60)
ASTM A182 / ASME SA182
The standard-duty duplex grade. Roughly twice the strength of 316L with far better chloride SCC resistance.
Stock & Lead Times
Common sizes and classes generally ship from stock. Larger diameters and higher pressure classes are forged to order. Availability moves with size, class, and quantity, so dem figures below are typical ranges. Request a quote for a confirmed lead time on your exact item.
| Grade | Sizes | Pressure Classes | Typical Availability |
|---|---|---|---|
| Inconel 625 (N06625) | 1/2" - 24" (12"+ to order) | 150# - 2500# | Common sizes from stock; larger / higher class forged to order |
| Inconel 718 (N07718) | 1/2" - 24" (all to order) | 150# - 2500# | Typically forged to order |
| Incoloy 825 (N08825) | 1/2" - 24" (12"+ to order) | 150# - 2500# | Common sizes from stock; balance forged to order |
| Super Duplex 2507 (S32750 / F53) | 1/2" - 24" (26"+ to order) | 150# - 2500# | Common sizes from stock; large diameter forged to order |
| Super Duplex S32760 (Zeron 100 / F55) | 1/2" - 24" (all to order) | 150# - 2500# | Typically forged to order |
| Duplex 2205 (S31803 / S32205) | 1/2" - 24" (26"+ to order) | 150# - 2500# | Broadly stocked; large diameter forged to order |
Freight terms: Ex Works Pearland unless quoted otherwise. Availability and lead time confirmed at time of quote.
Sizes, Classes & Standards
- Sizes: 1/2" through 24" (ASME B16.5); 26" and up (ASME B16.47 Series A & B).
- Pressure classes: 150#, 300#, 600#, 900#, 1500#, 2500#.
- Facings: Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF).
- Types: Weld Neck, Blind, Slip-On, Socket Weld, Lap Joint, Threaded, Long Weld Neck, Orifice.
Certification & Traceability
- MTRs: Material Test Reports (EN 10204 3.1) with full chemistry and mechanicals.
- PMI: Positive Material Identification on request, just holler at us.
- NACE MR0175 / ISO 15156: compliant material for sour and H2S service.
- Heat traceability on ever' high-alloy order.
Why Source Domestically
When your other choice is a mill halfway 'round the world with a long lead time and a whole ocean of freight 'tween you and your turnaround date, a US source dat holds stock sure changes the math. We carry the alloy, we hold the paper, and we ship right out of Houston. Ain't gonna be no customs surprises, no runaround, and you get domestic-manufactured parts dat make sure you're compliant with your end user's quality requirements.
Get a QuoteQuestions Folks Ask Us
Where can I buy Inconel and super duplex flanges in the US?
What are typical lead times on Inconel and super duplex flanges?
What super duplex grades do y'all carry?
Do y'all provide MTRs and NACE MR0175 material?
What sizes and pressure classes y'all got available?
Get a Quote on Inconel & Super Duplex Flanges
Send us the grade, size, class, facin', and type, and we'll holler back with a price and lead time, usually in under an hour.
