Seamless Pipes
Available in Carbon Steel, Stainless Steel, Alloy Steel, and CR materials, our seamless pipes are manufactured to meet international quality and performance standards for a wide range of industrial applications.
Flanges & Fittings
We supply a complete range of flanges and fittings, including butt-weld fittings, forged fittings, pipe nipples, high-pressure tube fittings, and cast iron fittings—all designed for durability, precision, and reliable performance in demanding environments.
Materials
Our products are available in various materials such as cast iron, cast steel, forged steel, stainless steel, brass, and special alloys, ensuring the right solution for every process requirement.
Stepsco Group offers a comprehensive range of carbon and stainless steel fittings engineered to meet diverse industrial requirements. Our cast threaded 150 lb fittings are available in 304 and 316 stainless steel grades, providing durability and reliability in critical applications.
Our stainless steel weld fittings and flanges are commonly dual-certified as 304/304L and 316/316L, ensuring versatility and compliance with international standards. In most operating environments, 316/316L stainless steel fittings deliver enhanced corrosion resistance and superior strength at elevated temperatures compared to 304/304L grades.
We supply fittings and components in a variety of standards and configurations:
Class 150 lb Threaded & Socket Weld – ASTM A351 / ASME SA351
Class 3000 lb & 6000 lb Forged Threaded & Socket Weld – ASTM A182 / ASME SA182
Schedule 40 & 80 Butt Weld – ASTM A403 WP / ASME SA403 WP
Class 150 lb & 300 lb Flanges – ASTM A182 / ASME SA182
Sanitary Tri-Clamp Fittings
Grooved Mechanical Connections
Instrumentation Tube Fittings & Valves
Available Stainless Steel Grades:
304, 304L, 304H, 316, 316L, 309, 309S, 310, 310S, 317L, 321, 330, 347, 410, 420, 904L, Duplex 2205, Super Duplex 2507, 254 SMO, and AL6XN.
| BUTT WELD FITTINGS | |
|---|---|
| Specifications | Sizes Available |
| Elbows, Tees, Barred Tees,Reducers, Caps, Bends | 1/2" through to 64" |
| Wall Thickness | Carbon Steel |
| Schedule 10 through to Schedule XXS | ASTM A234 WPB, WPC |
| High Yield: ASTM A860 WPHY42, 46, 52, 60, 65, 70 | |
| Stainless Steel | Alloy Steel |
| ASTM A403WP 304/L/H, 316/L/H | Upon request |
| Dimensions | |
| ASME Bl 6.9, ASME B16.28, ASME B16.25, MSS SP75 | |
| FORGED FITTINGS | |
|---|---|
| Specifications | Sizes Available |
| Elbows, Tees, Unions, Couplings, Plugs, Bushes, Outlets, Caps | 1/8" through to 4" |
| Socket Weld , Threaded | |
| Wall Thickness | Dimensions/Pressure Ratings |
| Schedule 10 through to Schedule XXS | ASTM A234 WPB, WPC |
| Thread according to ASME B16.11, ASME B1.20.1 | |
| NPT, BSPT, BSPP, UN/F and other kind upon request | |
| 3000lb through to 9000lb | |
| Material Grades | |
| Carbon Steel | Stainless Steel and Alloy Steel |
| ASTM A105 | ASTM A182 F304L/H, F316L/H, F5, F11, F22 |
| Low Temperatures: ASTM A350 | |
| Dimensions | |
| ASME B16.11 | |
Stepsco Group supplies an extensive range of pipes manufactured from carbon steel, stainless steel, and various alloy grades such as Hastelloy, Inconel, Monel, Duplex, and Copper-Nickel, with additional materials available upon request.
Our comprehensive inventory includes pipes in multiple sizes and grades, offered in single random (SRL) and double random lengths (DRL), with wall thicknesses conforming to ASME B36.10 and ASME B36.19 standards. These products are designed to meet diverse project specifications and delivery schedules efficiently.
All pipes sourced through Howell comply with NACE MR0175 / ISO 15156 requirements. Destructive testing—including HIC (Hydrogen-Induced Cracking) and SSCC (Sulfide Stress Corrosion Cracking)—can be performed by approved laboratories to verify suitability for sour service environments.
The following table presents the full range of pipe sizes and specifications available from our stock inventory as well as through direct mill supply.