Home > Knpc approved pipes
Sumakhsteel is a reliable manufacturer and supplier based in California, USA, focusing on premium pipes that satisfy the rigorous standards established by the Kuwait National Petroleum Company (KNPC). These pipes are engineered for demanding industrial uses, guaranteeing exceptional quality, safety, and performance. Sumakhsteel serves key industries such as oil & gas, petrochemicals, and infrastructure, contributing significantly to projects across the Middle East and further afield. Equipped with cutting-edge manufacturing facilities, a workforce of experienced professionals, and rigorous quality control practices, the company delivers precisely engineered pipes that arrive on schedule and are made to endure, positioning it as a dependable partner in tough industrial environments.
The KNPC certified pipes supplied by Sumakhsteel are manufactured using premium-grade materials such as carbon steel, stainless steel, and alloy steel. Their makeup includes precisely regulated proportions of carbon, chromium, nickel, and molybdenum, which improve their corrosion resistance, strength, and durability. These pipes deliver outstanding tensile strength, superb yield strength, and exceptional toughness, guaranteeing efficient performance even under elevated pressure and temperature. Compliance with KNPC specifications ensures they retain uniform mechanical properties, structural integrity, and an extended service life, even within the most demanding petrochemical and industrial settings.
| Category | Parameter | Carbon Steel | SS 304 | SS 316 | Duplex S32205 | Super Duplex S32750 | Inconel 625 |
|---|---|---|---|---|---|---|---|
| General | Approval | KNPC Approved Vendor | KNPC Approved | KNPC Approved | KNPC Approved | KNPC Approved | KNPC Approved |
| Product | Pipes & Tubes | Pipes & Tubes | Pipes & Tubes | Pipes & Tubes | Pipes & Tubes | Pipes & Tubes | |
| Type | Seamless / Welded / ERW / EFW | Same | Same | Same | Same | Same | |
| Standards | ASTM / ASME / API / DIN / EN | Same | Same | Same | Same | Same | |
| Certification | EN 10204 3.1 / 3.2 | Same | Same | Same | Same | Same |
| Chemical Composition (%) | C | ≤0.30 | ≤0.08 | ≤0.08 | ≤0.03 | ≤0.03 | ≤0.10 |
|---|---|---|---|---|---|---|---|
| Cr | – | 18–20 | 16–18 | 22–23 | 24–26 | 20–23 | |
| Ni | – | 8–10.5 | 10–14 | 4.5–6.5 | 6–8 | ≥58 | |
| Mo | – | – | 2–3 | 3–3.5 | 3–5 | 8–10 | |
| Mn | 0.6–1.2 | ≤2.0 | ≤2.0 | ≤2.0 | ≤1.2 | ≤0.50 | |
| Si | 0.1–0.35 | ≤1.0 | ≤1.0 | ≤1.0 | ≤0.80 | ≤0.50 | |
| P | ≤0.035 | ≤0.045 | ≤0.045 | ≤0.030 | ≤0.035 | ≤0.015 | |
| S | ≤0.035 | ≤0.030 | ≤0.030 | ≤0.020 | ≤0.020 | ≤0.015 | |
| N | – | – | – | 0.14–0.20 | 0.24–0.32 | – |
| Mechanical Properties | Yield Strength (MPa) | ≥240 | ≥205 | ≥205 | ≥450 | ≥550 | ≥414 |
|---|---|---|---|---|---|---|---|
| Tensile Strength (MPa) | ≥415 | ≥515 | ≥515 | ≥620 | ≥795 | ≥827 | |
| Elongation (%) | ≥20 | ≥40 | ≥40 | ≥25 | ≥15 | ≥30 | |
| Hardness (HB) | ≤137 | ≤201 | ≤217 | ≤290 | ≤310 | ≤220 |
At Sumakhsteel, we take great pride in being the largest supplier and manufacturer in the USA, delivering advanced solutions for every one of your piping requirements. With cutting-edge manufacturing facilities strategically positioned across the USA, we maintain an extensive stock of more than 25,000 tons of top-quality materials ready and available in inventory.
Reach out to us for a fast quote on your requirement.
We supply These Waspaloy Wire in accordance with DIN, ISO, JIS or ANSI Standard.
Owing to their remarkable characteristics, Waspaloy Wire serves as a vital component throughout numerous industrial fields. Celebrated for resisting corrosion, they are extensively used in marine settings, withstanding the harsh demands of saltwater contact with durability and dependability. Within the construction sector, stainless steel fasteners are crucial to structural assemblies, delivering reliable connections while preserving structural integrity in outdoor and exposed conditions.
Yes, KNPC-approved pipes are suitable for recycling once they have been used. The valuable materials they contain, including nickel, cobalt, and chromium, can be recovered via dedicated recycling methods, which makes them both an eco-friendly and cost-effective choice for reuse in producing new high-performance components.
Sumakhsteel’s KNPC certified pipes are widely employed in oil refineries, petrochemical facilities, and pipeline networks for conveying oil, gas, and chemicals. They serve a vital function in process piping, across both offshore and onshore setups, as well as in structural uses for a range of industrial projects. Built to withstand extreme conditions, these pipes are capable of managing high pressure, raised temperatures, and corrosive surroundings. Their adherence to KNPC standards guarantees that they remain safe, long-lasting, and efficient in performance. Sumakhsteel in California, USA, backs major engineering and energy projects by delivering reliable piping solutions.
Phone Us: +91 7208967217
E-mail: sales@sumakhsteel.com