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About Us上海鑫鑫荣特钢材料有限公司于2012年通过德国莱茵检测认证服务有限公司TUV Rheinland 的ISO9001国际质量体系认证，现正和英国英国船级社子公司劳氏质量认证公司 LRQA （Lloyd's Register Quality Assurance）申请认证通过ISO9001质量体系、ISO14001国际环境管理体系和ISO45001职业健康管理体系国际认证。
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Products & Solutions
Oil & Gas Steel
Oil & Gas Steel
Oil & Gas Field Pipes, Fittings & Flanges
1) Overview
Oil & gas fields operate under high pressure, sour service (H₂S), CO₂, chlorides, high/low temperature, and severe corrosion. Wellheads, Christmas trees, gathering lines, processing plants, and transmission pipelines require materials with high strength, sour service resistance, CO₂ resistance, cryogenic toughness, and weldability.
Product range includes:
• Pipes: Seamless, welded, casing, tubing, alloy steel, stainless steel, nickel alloys
• Fittings: Elbows, tees, reducers, caps, socket-weld & butt-weld fittings
• Flanges: Weld neck, slip-on, threaded, blind, API flanges
All products comply with ASTM, API, ASME, GB/T, DIN standards, certified to NACE MR0175/ISO 15156 with third-party inspection (TUV, SGS, LR, BV).
2) Manufacturing Process
• Pipes: Hot rolled, cold drawn, extrusion, welded (ERW/LSAW/HFW/SAW)
• Heat Treatment: Normalizing, quenching & tempering, solution annealing
• Surface Protection: Pickling, passivization, sandblasting, epoxy/FBE/3PE coating, PTFE/Glass lining
• Fittings/Flanges: Forging, machining, welding, precision finishing
3) Grades & Standards
Carbon Steel Pipes
• API 5L Gr.B/X42–X80, ASTM A106 Gr.B/C, ASTM A53
• Applications: Gathering lines, water injection, utility services
Cr-Mo Alloy Steel Pipes
• ASTM A335 P11, P22, P91
• Applications: Wellhead manifolds, steam flooding, fired heaters
Stainless Steel Pipes
• ASTM A312 (304/304L, 316/316L, 321, 347)
• Applications: Sour gas wells, offshore platforms, chloride service
Special Alloys
• Duplex Stainless Steel: 2205 (S31803), 2507
• Nickel Alloys: Incoloy 825, Inconel 625, Hastelloy C-276
• Low-Temperature Steels: ASTM A333, 9%Ni
• Sour Service Steels: NACE MR0175/ISO 15156 compliant
• Applications: Sour gas fields, subsea pipelines, LNG systems
Fittings & Flanges
• ASME B16.5, B16.9, B16.11
• API 6A (wellhead & Christmas tree flanges)
• DIN/EN 1092-1
• GB/T 9112–9124
4) Dimensions
• Pipes: OD 6 – 1200 mm; WT 1 – 100 mm; Length 6m, 12m or custom
• Fittings: DN15 – DN1200 (BW/SW/THD)
• Flanges: DN15 – DN2000, Class 150 – 2500 (API flanges 5000–20000 psi)
5) Applications
• Wellheads & Christmas Trees: high-pressure sour service → P22, Inconel 625
• Gathering Pipelines: crude oil, natural gas, water injection → API 5L X42–X70
• Sour Gas & High CO₂ Fields: → 316L, Duplex 2205, Incoloy 825
• Offshore Platforms & Subsea Pipelines: high chloride service → Duplex 2507, Nickel Alloys
• LNG Plants & Cryogenic Storage: low-temp steels → A333, 9%Ni
6) Key Features
• Sour Service Resistance: H₂S corrosion per NACE MR0175
• CO₂ Resistance: prevention of SCC in acid gas environments
• High Pressure & Low Temp Performance: -196℃ to 650℃
• High Strength: API 5L X70/X80 for transmission pipelines
• Excellent Weldability: suitable for field construction & retrofit
7) Quality & Testing
• Chemical Analysis: spectrometry
• Mechanical Tests: tensile, impact, hardness
• Corrosion Tests: H₂S and CO₂ environments
• NDT: UT, RT, ET, MT
• Pressure Testing: hydrostatic & pneumatic 100%
• Certifications: NACE MR0175/ISO 15156, API 5L, API 6A, third-party inspection
8) Supply & Packaging
• Forms: Seamless/welded pipes, fittings, flanges, complete piping systems
• Surface Protection: oiled, painted, galvanized, epoxy, 3PE/3PP
• Packaging: bundled, wooden cases, plastic end caps, export racks
• Documents: MTC (EN 10204 3.1/3.2), third-party test reports, API/NACE certificates
9) Our Advantages
• Wide Material Range: carbon steel, alloy steel, stainless, duplex, nickel alloys, low-temp steels
• Compliance: ASTM, API, ASME, NACE standards
• Tailored Solutions: sour gas and CO₂ service design per NACE MR0175 & API 6A
• Engineering Experience: extensive supply to onshore fields, offshore platforms, subsea pipelines, LNG projects
• Quality Assurance: strict QC + international third-party inspection
Materials & Dimensions of Steel Materials for Oil & Gas Fields
1. Carbon Steel
• Pipes: ASTM A106 Gr.B/C, API 5L (X42–X70); used for gathering pipelines, water injection lines, air lines, low-pressure steam.
➝ Size Range: OD ½” – 48”, wall thickness Sch40 – Sch160.
• Fittings: Butt-weld elbows, tees, reducers → ASTM A860 WPHY42/52.
➝ Size Range: DN15 – DN1200, wall thickness Sch40 – Sch160.
• Flanges: ASTM A105 forged carbon steel flanges, widely used in wellheads and gathering stations.
➝ Size Range: DN15 – DN2000, pressure Class 150 – 2500.
Applications: Gathering pipelines, water injection networks, surface facilities, utility pipelines.
2. Cr-Mo Alloy Steel
• Pipes: ASTM A335 P11, P22, P91 → high-temperature, high-pressure service for wellheads, gas gathering, fired heaters.
➝ Size Range: OD ½” – 36”, wall thickness Sch40 – 150 mm.
• Fittings: ASTM A234 WP11/WP22 alloy butt-weld fittings.
➝ Size Range: DN15 – DN1200, wall thickness Sch40 – Sch160.
• Flanges: F11, F22, F91 forged alloy flanges.
➝ Size Range: DN25 – DN2000, pressure Class 300 – 2500.
Applications: Wellhead equipment, high-pressure gas wells, gas injection systems, oil & gas processing stations.
3. Stainless Steel
• Pipes: ASTM A312 304/316L/321/347 → for sour service, chloride, and acidic fluids.
➝ Size Range: OD 6 mm – 1200 mm, wall thickness 1 – 50 mm.
• Fittings: ASTM A403 WP304/316, socket-weld and butt-weld.
➝ Size Range: DN15 – DN600, wall thickness Sch10s – Sch80s.
• Flanges: ASTM A182 F304/F316 stainless steel flanges.
➝ Size Range: DN15 – DN1500, pressure Class 150 – 1500.
Applications: Sour gas wells, sour crude pipelines, offshore oil platforms, gas treatment units.
4. Special Alloys
• Duplex Stainless Steel (2205/2507): seawater injection systems, chloride stress corrosion environments.
➝ Size Range: OD ½” – 24”, wall thickness Sch10 – Sch80.
• Nickel Alloys (Inconel, Incoloy, Hastelloy): for high-pressure gas wells, acid gas treatment, subsea pipelines.
➝ Size Range: OD ½” – 12”, wall thickness 1 – 30 mm.
• Low-Temperature Steels (A333, 9%Ni): for cryogenic natural gas transport and LNG facilities.
➝ Size Range: OD ½” – 36”, wall thickness Sch20 – Sch160.
• NACE H₂S-Resistant Steels: compliant with NACE MR0175/ISO 15156, preventing SSC (sulfide stress cracking).
➝ Size Range: OD ½” – 24”, customizable.
Applications: Sour oil & gas wells, deepwater developments, LNG facilities, acid gas fields.
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