Our Alloy Steel Butt Weld Fittings are the essential link in high-performance piping networks, specifically designed to change direction, branch off, or reduce pipe size in extreme temperature and pressure environments.
Manufactured from high-grade Chrome-Molybdenum alloy steel, these fittings provide the superior creep resistance and thermal stability required for supercritical steam lines and refinery headers. Our butt weld components ensure a smooth flow transition with minimal turbulence, maintaining structural integrity under intense thermal cycling and mechanical stress.
We offer a comprehensive inventory of WP5, WP9, WP11, WP22, and WP91 Fittings, including Long Radius Elbows, Equal Tees, Concentric Reducers, and Pipe Caps. Fully compliant with ASME B16.9 and B16.28 standards, our fittings undergo rigorous non-destructive testing (NDT) to guarantee leak-proof performance in the most demanding power generation and petrochemical applications.
| Specification | Technical Details |
|---|---|
| Dimensional Standard | ASME B16.9, ASME B16.25 (Buttweld Ends), MSS-SP-43 |
| Material Standards | ASTM A234 / ASME SA234 (Wrought Alloy Steel) |
| Available Grades | WP5, WP9, WP11 (CL1/CL2), WP12, WP22 (CL1/CL3), WP91, WP92 |
| Fitting Types | 45°/90°/180° Elbows (LR & SR), Equal/Reducing Tees, Concentric/Eccentric Reducers, Caps, Stub Ends, Crosses |
| Size Range | 1/2" NB to 48" NB (Seamless up to 24"; Welded/Fabricated up to 48") |
| Schedules (Wall Thickness) | Sch 10, 20, 40, STD, 80, XS, 100, 120, 160, XXS |
| Manufacturing Process | Hot Forming, Mandrel Expansion, Cold Drawing, Forged & Machined |
| Testing & QA | X-Ray (Radiography) for Welds, Magnetic Particle (MPI), Ultrasonic (UT), Hydrostatic Testing |
| Heat Treatment | Normalized, Quenched & Tempered, Stress Relieved (PWHT) |
| Surface Finish | Sand Blasting, Shot Blasting, Black Painting, Anti-Corrosion Oil, Galvanized |
| Standard / Specification | Available Material Grades & Performance |
|---|---|
| ASTM A234 (Wrought Alloy) | WP1, WP5, WP9, WP11 (CL1/CL2), WP12, WP22 (CL1/CL3), WP91 |
| ASTM A420 (Low-Temp Service) | Grade WPL3, WPL6, WPL8, WPL9 (For cryogenic & sub-zero piping) |
| ASTM A691 (Large Diameter EFW) | 1-1/4Cr, 2-1/4Cr, 5Cr, 9Cr, 91 (Fabricated from A387 Plates) |
| Dimensional Standards | ASME B16.9 (Long Radius), ASME B16.28 (Short Radius), MSS-SP-43 |
| Heat Treatment Standards | ASTM A960 (Common Requirements), Stress Relieving, Normalizing |
| European Standards (EN 10253) | 13CrMo4-5, 10CrMo9-10, 16Mo3, P235GH, P265GH |
| High-Nickel Alloy Fittings | Monel 400, Inconel 600/625, Hastelloy C276, Alloy 20 |
| End Prep Standards | ASME B16.25 (Buttweld Beveling), Plain End, Square Cut |
| Quality Compliance | NACE MR0175 (Sour Service), ISO 9001, PED 2014/68/EU |
Critical for changing flow direction in high-pressure lines. Available in Long Radius (LR) for smooth flow and Short Radius (SR) for tight spaces.
Used for branching piping systems. Equal tees maintain diameter, while reducing tees allow for smaller branch connections.
Designed to join pipes of different diameters. Eccentric reducers are essential in horizontal lines to prevent air pockets or scale buildup.
Protective end-of-line fittings used to block off the flow in high-temperature headers or pressure vessel openings.
Used in conjunction with lap joint flanges to facilitate easy alignment and dismantling of piping sections for maintenance.
Four-way fittings used where four pipes meet at a single junction, providing high structural integrity for manifold systems.
Dhanavir Steel is a premier stockholder and global supplier of high-performance Stainless Steel, Special Alloys and Nickel Alloys.
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Dhanavir Steel provides end-to-end industrial steel solutions, specializing in Pipes, Fittings, and Flanges. We combine technical expertise in NACE and IBR testing with a robust global supply chain to deliver quality-assured materials for demanding environments.
Dhanavir Steel provides end-to-end industrial steel solutions, specializing in Pipes, Fittings, and Flanges. We combine technical expertise in NACE and IBR testing with a robust global supply chain to deliver quality-assured materials for demanding environments.