ARK Stainless Inc. is a leading manufacturer and supplier of high-quality Monel Pipes & Tubes, recognized for their excellent corrosion resistance, high strength, and durability in demanding environments. These pipes and tubes are engineered to perform exceptionally well in applications involving seawater, chemical processing, marine engineering, aerospace, and heat exchangers where resistance to acidic and alkaline conditions is critical.
Our range includes premium grades like Monel 400 and Monel K500, each offering unique benefits. Monel 400 is prized for its excellent toughness and resistance to corrosion and erosion in seawater, while Monel K500 combines high strength with superior resistance to stress corrosion cracking, making it ideal for more demanding mechanical applications. Manufactured to meet rigorous international standards such as ASTM B165 / ASME SB165 and dimension standards including ASTM B819, ASTM B163, and ASTM B829, our Monel pipes and tubes assure reliable performance across diverse industrial sectors.
| Grade | Ni | Fe | C | Mn | Si | Cu | Al | Ti | S |
|---|---|---|---|---|---|---|---|---|---|
| Monel 400 | ≥ 63.0% | ≤ 2.5% | ≤ 0.3% | ≤ 2.0% | ≤ 0.5% | 28.0 – 34.0% | – | – | ≤ 0.024% |
| Monel K500 | ≥ 63.0% | ≤ 2.0% | ≤ 0.25% | ≤ 1.5% | ≤ 0.5% | 27.0 – 33.0% | 2.3 – 3.15% | 0.35 – 0.85% | ≤ 0.01% |
| Grade | Tensile (ksi) | 0.2% Yield (ksi) | Elongation (%) | Hardness (HRb) |
|---|---|---|---|---|
| Monel 400 | 70 – 85 | 25 – 45 | 30 – 40 | 65 – 85 |
| Monel K500 | 110 – 160 | 80 – 130 | 15 – 30 | 85 – 100 |
Monel 400/K500 Pipes & Tubes are widely used in a range of demanding industrial applications, including marine engineering, chemical and hydrocarbon processing, heat exchangers, gas processing, power generation, offshore drilling, and pulp and paper industries. These pipes and tubes are engineered for use in both high-pressure and high-temperature environments, offering exceptional resistance to seawater, acidic conditions, and corrosive chemicals.
At ARK Stainless Inc., all Monel pipes and tubes undergo comprehensive testing procedures to ensure they meet international standards and customer specifications. These tests include hydrostatic testing, mechanical strength testing, positive material identification (PMI), chemical analysis, non-destructive testing (NDT), intergranular corrosion (IGC) testing, and visual inspections. We provide full traceability and documentation such as Mill Test Certificates, EN 10204 3.1, third-party inspection reports, and quality assurance plans along with every delivery.
| STANDARD | UNS | WNR. | EN | JIS | GOST | AFNOR | BS |
|---|---|---|---|---|---|---|---|
| Monel 400 | N04400 | 2.4360 | NiCu30Fe | NW 4400 | МНЖМц 28-2,5-1,5 | NU-30M | NA 13 |
| Monel K500 | N05500 | 2.4375 | - | - | - | - | - |
