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Ferritic Hollow Rod 430/444/409
Ferritic stainless steel hollow rod in grades 409, 430, and 444, OD 20–100mm, wall thickness 2–5mm, custom lengths. Used for exhaust hanger rods, heat shield supports, and EGR tube spacers. Benefits: good oxidation resistance up to 750°C, reduced weight vs solid rod, low thermal expansion, cost-effective.
Forged Hollow Bar / Hollow Round Bar – Martensitic Stainless Steel 410 / 420 / 431 / 440C
Forged hollow round bar in martensitic stainless steel, grades 410, 420, and 431, OD 50–250mm, custom wall thickness. Ideal for chemical pump casings, high-pressure valve seats, wellhead components, and compressor cylinder liners. Advantages: 431 offers highest corrosion resistance among martensitic grades, heat treatable for improved mechanical properties, forged structure for reliability, seamless construction.
Forged Hollow Bar / Seamless Hollow Round Bar – Austenitic Stainless Steel 304 / 316L / 321
Forged and seamless austenitic stainless steel hollow bar, grades 304/316L/321, OD 2"–16", wall from 0.5"–3". Ideal for flange rings, pressure pipe spools, and nozzle adapters. Advantages: zero center waste, excellent weldability, 316L option for high corrosion resistance.
Ferritic Stainless Steel Forged Rings – Grades 409/430/439/444
Ferritic stainless steel forged ring in grades 430, 439, and 444, OD 8"–24", any wall thickness. Main applications: chemical tank flanges, scrubber rings, ducting flanges, and industrial mixer flanges. Benefits: 444 offers molybdenum-enhanced pitting resistance (similar to 316), excellent resistance to chloride stress corrosion cracking, good formability, full traceability available.
Martensitic Stainless Steel Forged Ring – 410 / 420 / 431 / 440C
Martensitic stainless steel forged ring in 410, 420, 431, and 440C, OD 6"–20", any wall thickness. Main applications: wellhead components, BOP rings, riser flanges, and downhole tool rings. Benefits: excellent strength and hardness, 440C for maximum wear life, NACE options available for 410/431, full traceability and certification included.
Austenitic stainless steel forged rings 316L/904L
Austenitic stainless steel forged ring in grades 316L and 904L, OD 6"–48", wall thickness 1"–10". Main applications: chemical reactor flanges, acid tank manway rings, heat exchanger tube sheets, and scrubber nozzle rings. Benefits: 904L offers exceptional resistance to sulfuric/phosphoric acid, 316L provides cost-effective chloride resistance, forged microstructure for reliability, custom dimensions available.
AMS4675 ASTM B164 B564 MONEL 400 FORGING RING
MONEL 400 nickel-copper alloy forged ring per ASTM B564 and AMS 4675, OD 150–900mm, custom cross-section. Main applications: heat exchanger flanges, chemical reactor rings, feedwater heater rings, crude distillation column rings, and pickling bath heating coil rings. Advantages: excellent resistance to hydrofluoric and sulfuric acids (de-aerated), good weldability, resistant to chloride stress corrosion cracking, full traceability available.
904L/1.4539/UB6/UNS N08904 Forged Ring
904L (UNS N08904 / 1.4539 / UB6) austenitic stainless steel forged ring per ASTM B564, OD 8"–48", wall thickness 1"–10". Main applications: sulfuric acid tank flanges, phosphoric acid reactor rings, chemical manway rings, and scrubber nozzle rings. Benefits: exceptional resistance to sulfuric, phosphoric, and formic acids, high molybdenum (4-5%) and copper (1-2%) for pitting resistance, excellent weldability, custom dimensions.