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Custom CNC machined parts for oil and gas equipment

Materials for Oil & Gas Parts

Materials used for oil & gas parts must meet the highest performance standards to withstand extreme operating environments. These parts are exposed to high pressure, corrosive media (including H₂S and CO₂), saltwater, and wide temperature fluctuations, making material selection critical to long-term reliability and safety.

We provide oil and gas machining for a wide range of high-performance materials, including corrosion-resistant alloys and advanced engineering plastics. Materials can be selected to meet sour service requirements with NACE-compliant options available for demanding oilfield applications.

Each material is carefully chosen based on application-specific requirements such as mechanical strength, corrosion resistance, thermal stability, and wear performance—ensuring consistent quality and durability of oil and gas parts in high-pressure and harsh environments.

Materials for Oil & Gas Applications

MaterialGrade / StandardPerformance AdvantagesTypical Oil & Gas ApplicationsMachining Challenges
Carbon SteelA105 / A216 WCBCost-effective, good strengthFlanges, valves, general pipingScale control, corrosion protection required
Alloy Steel4140 / 4130High strength, fatigue resistanceWellhead, connectors, shaftsHeat treatment distortion
High-Strength Alloy Steel4330V ModExcellent toughness, high load capacityFluid ends, BOP componentsDifficult machining after hardening
Stainless Steel304 / 304LGeneral corrosion resistanceFittings, housingsWork hardening
Stainless Steel316 / 316LImproved corrosion resistanceOffshore, chemical exposure partsLow thermal conductivity
Precipitation Hardening Stainless Steel17-4 PHHigh strength + corrosion resistanceValve components, shaftsHeat treatment sensitivity
Duplex Stainless Steel2205High strength + chloride resistanceSubsea, pipelinesTool wear, cutting control
Super Duplex Stainless Steel2507Extreme corrosion resistanceDeepwater subsea systemsHigh cutting forces
Nickel AlloyInconel 625Excellent corrosion & oxidation resistanceSubsea, chemical processingSevere work hardening
Nickel AlloyInconel 718High strength at elevated temperatureHigh-pressure valves, downhole toolsTool wear, slow cutting speeds
Nickel-Copper AlloyMonel 400Seawater corrosion resistanceMarine and offshore equipmentGalling tendency
Nickel-Molybdenum AlloyHastelloy C276Extreme chemical resistanceAcidic and corrosive environmentsDifficult chip control
Low Alloy Steel8620 (Carburized)High surface hardnessGears, bearing componentsDistortion after carburizing
Bearing SteelM50High fatigue resistanceHigh-speed rotating partsHard machining required
Cobalt AlloyStellite 6Wear & heat resistanceValve seats, sealing surfacesVery difficult machining
Titanium AlloyTi-6Al-4VLightweight + corrosion resistantSubsea and aerospace crossover partsLow thermal conductivity
Aluminum Alloy6061-T6Lightweight, easy machiningManifolds, housingsSurface finish control
Copper-Nickel AlloyCuNi 90/10Excellent seawater resistanceHeat exchangers, pipingSoft material deformation
Aluminum BronzeC95400Wear & corrosion resistanceBearings, bushingsTool wear
Engineering PlasticPTFE (Carbon Filled)Chemical resistance, low frictionSeals, seatsDeformation during machining