Offshore & Deepwater Precision Forging — API 6A, 6D, 17D, NORSOK M-650
Shivam Forge manufactures precision hot forgings for global offshore oil and gas operations — supplying Subsea 7, TechnipFMC, SLB (Schlumberger), Baker Hughes, Halliburton, Saipem, MODEC, SBM Offshore, and Aker Solutions. Our offshore forging range covers: API 6A PSL3 subsea Xmas tree forgings (15,000 psi), Super Duplex 2507 subsea valve bodies, Alloy 625 manifold closure forgings, NACE MR0175 sour service wellhead forgings in 4130/4340, riser clamp forgings in 17-4 PH stainless, and high-pressure FPSO process nozzle forgings. NORSOK M-650 qualified, API Q1 certified, EN 10204 3.1/3.2. Serving deepwater fields in the North Sea, Gulf of Mexico, West Africa, Brazil pre-salt, and Southeast Asia. ISO 9001:2015, Rajkot, Gujarat, India.
The global offshore oil and gas industry operates in some of the world's most extreme environments — North Sea (100-year storm wave heights of 30+ metres), Gulf of Mexico ultra-deepwater (3,000m+ water depth, 15,000 psi wellhead pressure), Brazil pre-salt Santos Basin (6,000m+ total depth through 2km of salt), and West Africa deepwater (Bonga 225,000 bbl/day FPSO, Egina 200,000 bbl/day FPSO) — all demanding forgings that meet or exceed the highest international standards. Subsea 7 — one of the world's leading offshore EPCI contractors — specifies Super Duplex 2507 (UNS S32750) for all subsea connector forgings (PREN ≥43, CVN at −46°C ≥45 J), Alloy 625 (UNS N06625) for high-sour service, and NORSOK M-650 material qualification for all subsea structural forgings. TechnipFMC's subsea tree systems (XT-150 for 15,000 psi service, XT-1000 for 10,000 psi) are assembled from forged bodies in API 6A PSL3 H2S (low-alloy 4130 with 22 HRC maximum) and stainless (316L/Duplex/Super Duplex) depending on service classification. SLB (Schlumberger, the world's largest oilfield services company) supplies perforation guns (forged in 4130 or 4340 Q+T), ESP (electric submersible pump) motor housings, and downhole completion tools — all requiring precision forgings with tight dimensional tolerances (±0.01 mm on bore diameter) and 100% UT inspection. Shivam Forge manufactures all these components under API Q1 9th Edition quality management, with EN 10204 3.1 and 3.2 material traceability, NORSOK M-650 qualification data, and full NDE reports — delivering to offshore fabrication yards in the UK (Aberdeen, Wick), Norway (Stavanger, Bergen), Netherlands (IJmuiden, Rotterdam), Singapore (Jurong, Tuas), and Houston, Texas.
XT-150 and XT-1000 subsea Xmas tree body forgings in API 6A PSL3 H2S (4130 steel, 22 HRC max, NACE MR0175), tree cap forgings in ASTM A182 F316L stainless, subsea manifold body forgings in Super Duplex 2507 (UNS S32750, PREN ≥43, CVN −46°C ≥45 J), and flowline connector forgings in Alloy 625 (UNS N06625). TechnipFMC Category 3 vendor documentation.
ESP pump casing forgings in Duplex 2205 (produced water corrosion resistance), perforating gun carrier forgings in 4130 Q+T, wireline tool body forgings in 718 Nickel Alloy (UNS N07718, H900 aged, 1,200 MPa tensile), and downhole safety valve body forgings in 316L stainless per API 14A (surface-controlled subsurface safety valves). ±0.01 mm bore tolerances.
Baker Hughes SUBSEA-qualified valve bodies in Super Duplex 2507 (API 6DSS, subsea ball valves), downhole packer mandrel forgings in 4340 Q+T (Rm 1100 MPa, Charpy −40°C ≥47 J), and intelligent completion ICV (interval control valve) body forgings in Inconel 718. Full Baker Hughes SQMS (Supplier Quality Management System) qualification documentation.
Saipem's pipelay vessels (Castorone, FDS) and FPSO operations supply demand: subsea pipeline connector forgings in 4130 NACE MR0175, offshore riser clamp forgings in 17-4 PH stainless (H1025 condition, 930 MPa tensile), structural collar forgings in A694 F65 (450 MPa SMYS), and J-lay collar forgings in duplex 2205. EN 10228-3 UT inspection for all structural forgings.
FPSO topsides process equipment forgings: crude oil separation vessel nozzle forgings in A182 F316L, gas compression train casing forgings in 4140 Q+T, water injection pump casing forgings in Duplex 2205 (PREN ≥35 for seawater injection corrosion resistance), and flare tip closure forgings in Alloy 625. ASME Section VIII Div.1 and Div.2 pressure documentation.
Aker Solutions' SPS (subsea production system) components for North Sea and deepwater: subsea wellhead housing forgings in 4130 H2S (API 6A PSL4, 15,000 psi), tubing hanger forgings in Alloy 718 (for high-temperature geothermal wells), and Subsea Processing manifold body forgings in Super Duplex 2507. NORSOK M-650 full qualification data package.
PREN (Pitting Resistance Equivalent Number) ≥43, CVN at −46°C ≥45 J, tensile ≥795 MPa, 0.2% proof ≥550 MPa. Ferrite content 40–60% (magnetically verified). Microstructure free of intermetallic phases (sigma, chi) verified by Charpy fracture surface examination. Full NORSOK M-650 qualification data package on request.
ASTM B564 Grade N06625 forgings for H2S + CO2 + chloride service environments (Gulf of Mexico, West Africa deepwater). Tensile ≥827 MPa, yield ≥414 MPa, IGC tested per ASTM A262 Practice C, intergranular corrosion resistance verified. ASME Code Case 2734 for pressure vessel nozzle qualification.
H2S service forgings in AISI 4130 (22 HRC maximum per NACE MR0175/ISO 15156, Zone 3 SSC resistance) and 4140 modified (NL designation, 28 HRC max). SSC (sulfide stress cracking) test per NACE TM0177 Method A, HIC (hydrogen induced cracking) test per NACE TM0284, and SSRT (slow strain rate tensile test) per NACE TM0198.
ASTM B637 Grade N07718 nickel alloy forgings for HPHT (high pressure/high temperature) downhole tools: tensile ≥1,380 MPa (aged H900 condition), yield ≥1,170 MPa, CVN at 21°C ≥54 J. Aerospace-grade vacuum melting (VIM/VAR) available for critical downhole safety valve components per API 14A PSL3.
API 6A (Wellhead and Christmas Tree Equipment), Product Specification Levels 1–4. PSL3 (HPO — Hostile Production Only) covers Material Class DD/EE/FF/HH for H2S service. PSL4 adds factory acceptance tests (FAT) and witness testing. Full qualification documentation: material certification, heat treatment records, hydrostatic test, dimensional inspection, and NDE reports.
API 17D (Subsea Production Equipment) covers subsea wellheads, Xmas trees, manifolds, and control systems. Our subsea valve body and connector forgings meet API 17D material requirements — Low-Alloy Steel (LAS) Class for H2S service, Corrosion-Resistant Alloys (CRA) Class for severe sour service. Full factory acceptance test (FAT) documentation.
NORSOK M-650 is the Norwegian offshore standard for material qualification of metallic materials used in subsea equipment. Mandatory for Equinor, Shell Norway, TotalEnergies Norway, and Aker Solutions procurement. Our Super Duplex 2507 and Alloy 625 forgings are qualified per NORSOK M-650 Edition 4 with full heat qualification data package (HQP).
FPSO topsides pressure vessel nozzle forgings comply with ASME Section VIII Div.1 (Design by Rules) and Div.2 (Design by Analysis). European-consortium FPSO projects (TotalEnergies, Shell, Eni) require PED 2014/68/EU Category III compliance with EU Notified Body (DNV GL, Lloyd's Register, Bureau Veritas) inspection and CE marking.
The global offshore oil and gas industry is among the most technically demanding environments for precision forgings — operating at water depths exceeding 3,000 metres (Angola deepwater, Gulf of Mexico ultra-deepwater), pressures to 15,000 psi at the wellhead (API 6A PSL3 rated), temperatures from −196°C (deepwater ambient) to +400°C (HPHT reservoir fluids), and in the presence of H2S, CO2, chloride, and elemental sulphur — a combination that destroys standard carbon steels through sulphide stress cracking (SSC), hydrogen induced cracking (HIC), and pitting corrosion. Shivam Forge is a specialist manufacturer of offshore oil and gas forgings: API 6A PSL3 wellhead body forgings in 4130 alloy steel (heat treated, controlled to 22 HRC maximum per NACE MR0175 Zone 3), Super Duplex 2507 (UNS S32750) subsea connector forgings (PREN ≥43 pitting resistance, full NORSOK M-650 qualification), Alloy 625 (UNS N06625) manifold closure forgings for the most corrosive H2S + CO2 + brine environments, and Inconel 718 (UNS N07718) downhole tool forgings for HPHT completions (tensile ≥1,380 MPa, hydrogen embrittlement resistant). Our manufacturing facility in Rajkot, Gujarat is API Q1 9th Edition registered and ISO 9001:2015 certified with full NDE capabilities: 100% volumetric UT, surface MT, PT, and visual inspection.
TechnipFMC — one of the world's two leading subsea tree and manifold OEMs (alongside Baker Hughes) — specifies stringent material and testing requirements for its subsea production systems. The XT-150 subsea Xmas tree (15,000 psi API 6A PR2 rated) uses body forgings in low-alloy 4130 steel (Material Class HH, 22 HRC maximum hardness, Charpy CVN at −40°C ≥54 J), tree cap forgings in ASTM A182 F316L stainless, and subsea manifold body forgings in Super Duplex 2507 for H2S + seawater service. TechnipFMC's Category 3 vendor qualification requires a complete material traceability dossier: EN 10204 3.1 mill test report, heat treatment records, hardness survey per EN 10228-4, full body and port UT per ASME V Article 5 (acceptance criteria per ASTM A388 Level B), magnetic particle inspection, and dimensional inspection against 3D model (GD&T per ISO 1101). Shivam Forge meets all these requirements and is capable of supplying CIF Aberdeen (UK), CIF Stavanger (Norway), or CIF Houston (USA) for TechnipFMC fabrication yard deliveries. SLB (Schlumberger) — the world's largest oilfield services company with $33 billion revenue and operations in 120 countries — sources forged ESP pump casings, perforating gun carriers, and downhole packer mandrels from qualified forging manufacturers. Our in-house spectrometry (OES), mechanical testing, and UT capabilities ensure SLB's tight dimensional tolerances (±0.01 mm bore, ±0.05 mm OD) and 100% inspection requirements are consistently met.
FPSO (Floating Production Storage and Offloading) vessels — the dominant production platform type for deepwater West Africa (Bonga, Egina, Dalia, CLOV — TotalEnergies, Shell, Eni), Brazil pre-salt (Tupi, Iracema, Libra — Petrobras, Shell, TotalEnergies), and Southeast Asia (Modec-operated FPSOs in Southeast Asian deepwater) — require topsides process equipment forgings of the highest integrity. Water injection pump casing forgings in Duplex 2205 (PREN ≥35 for seawater corrosion resistance at 1,500+ m³/hour injection rates), gas compression casing forgings in 4140 Q+T (for multistage centrifugal compressor barrel casings), crude oil export pump casing forgings in CA6NM martensitic stainless, and flare tip closure forgings in Alloy 625 (for H2S + sulphur service at flare tip temperatures >1000°C) — all manufactured by Shivam Forge with EN 10204 3.1 material traceability, ASME Section VIII Div.2 pressure design calculations, and PED 2014/68/EU Category III compliance for European-consortium FPSO projects. MODEC International (Japan) and SBM Offshore (Netherlands) — the world's two largest FPSO operators — are key clients for these topsides forgings.
Shivam Forge's offshore oil and gas forging business spans the complete spectrum from surface wellhead components (API 6A PSL3) through subsea production systems (API 17D, NORSOK M-650) to FPSO topsides (ASME VIII/PED) and deepwater pipeline infrastructure (ASME B31.4/B31.8). Our material expertise covers 15+ alloys critical to offshore service: low-alloy steels (4130, 4140, 4340, 8630, 4145H), stainless steels (316L, Duplex 2205, Super Duplex 2507, 17-4 PH, 13Cr), nickel alloys (Alloy 625, Alloy 718, C-276, Alloy 825), and titanium alloys (Ti-6Al-4V for weight-critical deepwater components). All offshore forgings are manufactured under API Q1 9th Edition quality management, issued with EN 10204 3.1 (or 3.2 on request) material certificates, and supported by our in-house mechanical testing laboratory (tensile, Charpy impact, hardness), spectrometry (OES), and NDE capabilities. Contact our offshore accounts team at +91-9265772827 for TechnipFMC, Baker Hughes, SLB, Saipem, and MODEC vendor registration support and offshore forging quotations.
Yes. We manufacture Super Duplex 2507 (UNS S32750) forgings with PREN ≥43, CVN impact ≥45 J at −46°C, tensile ≥795 MPa, and ferrite content 40–60% verified by magnetic measurement. Full NORSOK M-650 heat qualification data package (HQP) available for North Sea subsea vendor qualification with Equinor, TechnipFMC, and Aker Solutions.
API 6A PSL3 (Product Specification Level 3) is the highest commercial grade for wellhead and Xmas tree equipment, covering Material Class DD/EE/FF/HH for H2S service. We manufacture subsea Xmas tree body forgings in 4130 (22 HRC max, NACE MR0175 Zone 3) and F316L stainless at PSL3, including hydrostatic test, NDE, and full material traceability documentation.
Yes. We manufacture Alloy 625 (UNS N06625, ASTM B564) forgings for deepwater H2S + CO2 + chloride service environments including Gulf of Mexico, West Africa, and Brazil pre-salt. Tensile ≥827 MPa, IGC tested per ASTM A262 Practice C, and ASME Code Case 2734 qualification for pressure vessel nozzle use.
Yes. We supply TechnipFMC subsea tree body forgings (API 6A PSL3 H2S in 4130), tree cap forgings in A182 F316L stainless, subsea manifold body forgings in Super Duplex 2507, and flowline connector forgings in Alloy 625. TechnipFMC Category 3 vendor documentation package and PPAP-equivalent qualification dossiers provided.
Our Super Duplex 2507 and Alloy 625 forgings comply with NORSOK M-650 Edition 4 (material qualification for subsea metallic materials). We provide full heat qualification data package (HQP) including chemistry, tensile, Charpy impact (−46°C), hardness, PREN calculation, ferrite content, microstructure examination, corrosion testing, and pitting test results (ASTM G48 Method C).
Yes. We supply 4130 alloy steel forgings controlled to 22 HRC maximum hardness per NACE MR0175/ISO 15156 Zone 3 requirements. Full sour service documentation: SSC test per NACE TM0177 Method A (100% SMYS at 22°C for 720 hours), HIC test per NACE TM0284 (saltwater solution A), SSRT per NACE TM0198, and 100% UT inspection per ASME V Article 5.
Yes. We manufacture Alloy 718 (UNS N07718, ASTM B637) forgings for HPHT downhole safety valves, completion tools, and packers. Properties: tensile ≥1,380 MPa (H900 aged), yield ≥1,170 MPa, CVN at 21°C ≥54 J. VIM/VAR vacuum-melted material available for API 14A PSL3 safety valve components.
Standard NDE package for offshore forgings: 100% volumetric UT per ASME V Article 5 (for forgings >50mm cross-section), surface MT per ASME V Article 7 (magnetic particle) or PT per ASME V Article 6 (liquid penetrant for non-magnetic materials), and visual inspection per EN ISO 17637. Radiographic testing (RT) available for weld-repaired areas. ACFM and TOFD available on request.
Why Choose Shivam Forge
Shivam Forge delivers precision hot-forged components from our integrated Shapar, Rajkot facility — covering forging, CNC machining, heat treatment, and quality inspection under one roof.
