Valve Body Forging Manufacturer India – Forged Ball Valve & Gate Valve Bodies
Shivam Forge manufactures forged valve bodies, bonnets, and disc components in ASTM A105, F304, F316, F11, and F22 from Shapar GIDC, Rajkot. Ball valve bodies, gate valve bodies, check valve bodies, butterfly valve discs, and valve bonnets produced to ASME B16.34, API 600, and API 602 standards. ISO 9001:2015 certified. Export to oil & gas, petrochemical, and power generation industries worldwide.
Primary Material Grades
Pressure Class Range
Valve Size Range (NPS)
Design Standard Compliance
Quality Certification
Export Countries
Forged Valve Bodies – Pressure Integrity Starts with the Right Manufacturing Process
A valve body is the pressure-retaining boundary of a piping system — its mechanical integrity directly determines the safety and reliability of the entire process line. Forged valve bodies have no internal porosity, no shrinkage cavities, and no residual casting stresses that lead to premature cracking or leakage. The closed-die forging process produces dense, directional grain flow aligned with the hoop stress direction in the body wall, giving forged valve bodies consistently higher pressure ratings, better cyclic load endurance, and more predictable NDT results compared to cast valve bodies. Shivam Forge produces valve body forgings in ASTM A105, F304, F316, F11, F22, and custom alloys for Class 150 through Class 2500 applications.
Valve Body Forgings We Manufacture
Ball Valve Body Forgings
Two-piece and three-piece ball valve body forgings in ASTM A105 (carbon steel), F316 (stainless), and F11/F22 (chrome-moly alloy) for Class 150 to Class 1500 ratings in NPS 1/2 through NPS 12. Forged body blocks are machined with end connections to ASME B16.11 or B16.34. The ball port diameter, seat pocket diameter, and stem bore are machined to close tolerances from the forged blank, eliminating the porosity-related seat leakage problems common with cast ball valve bodies.
Gate Valve Body & Bonnet Forgings
Full-bore and reduced-bore gate valve body forgings in ASTM A105, F304, and F316 for Class 150 through Class 600 in NPS 2 through NPS 24. API 600 gate valve bodies require thick wall sections at the flow passage area — forging fills these sections solidly, while cast gate bodies often show shrinkage at the thickest cross-sections. Bonnet forgings with raised face, RTJ, and socket weld ends produced as separate items or mated pairs.
Globe Valve Body Forgings
Forged globe valve bodies in ASTM A105 and F316 for Class 800 and Class 1500 high-pressure throttling applications. The body internal contour — inlet chamber, throat seat, outlet chamber — is forged near-net and CNC-machined to final profile. ASME B16.34 wall thickness minimums are maintained with machining allowance confirmed on pre-machining dimensional review.
Check Valve Body Forgings
Swing check and piston check valve body forgings in ASTM A105, F304, F316, and bronze equivalents. Check valve bodies have asymmetric internal cavity geometry — this is where casting shrinkage causes the most problems. Forged check valve bodies are free of internal voids, making them the standard choice for high-cycle, high-pressure check valve applications in oil & gas and power generation.
Butterfly Valve Disc & Body Forgings
Concentric and eccentric butterfly valve disc forgings in F316, Duplex 2205, and Hastelloy C276 for corrosive process fluids. Disc forgings are produced near-net from rolled ring or closed-die processes, then CNC-profiled to final stem pocket and disc profile. Valve body wafer shells and lug bodies forged in A105 and WCB equivalent for Class 150 and 300 flanged applications.
Valve Bonnet & Cover Forgings
Pressure-retaining bonnet forgings for gate, globe, and angle valves in ASTM A105, F11, F22, and F316. Bonnets with integral pressure seal grooves, bolted gland flanges, and extension bonnets for cryogenic service produced to OEM drawings. The bonnet-to-body joint is a critical sealing interface — forged bonnets machine to consistently flatter mating faces than cast equivalents.
Materials for Valve Body Forgings
ASTM A105 – Carbon Steel (Class 150–2500)
The industry-standard material for carbon steel forged valve bodies and fittings in ambient and moderate-temperature piping systems up to 425°C. A105 forged valve bodies meet ASME B16.34 Class 150 through 2500 pressure-temperature ratings. We stock A105 billets in multiple sizes for fast response on common ball valve and gate valve body forgings.
ASTM A182 F304 / F316 – Stainless Steel
Austenitic stainless steel forged valve bodies for corrosive service environments including chemical processing, food and beverage, pharmaceutical, and saline process fluids. F316 (with molybdenum) provides superior chloride pitting resistance versus F304. Solution-annealed per ASTM A182 table requirements, with intergranular corrosion test (IGC/ASTM A262 Practice E) on request.
ASTM A182 F11 / F22 – Chrome-Moly Alloy Steel
1.25Cr-0.5Mo (F11) and 2.25Cr-1Mo (F22) forged valve bodies for elevated-temperature service in power generation, steam systems, and refinery process lines up to 593°C service temperature. F22 is the standard specification for high-temperature gate valve bonnets and bodies in critical power plant applications.
ASTM A105N – Normalized Carbon Steel
Normalized condition A105 forgings (the 'N' suffix) are increasingly specified for pressure class 600 and above valve bodies where superior notch toughness is required. The normalizing heat treatment refines grain size and reduces hardness variability, giving more consistent machining behavior across the body wall cross-section.
WCB Forging Equivalent (ASTM A216 WCB Grade)
While WCB is technically a cast grade, many buyers transitioning from cast to forged valve bodies require forging equivalents. We supply ASTM A105 forgings as the direct forged equivalent to WCB cast bodies — same composition family, superior mechanical properties, and directly interchangeable in valve assembly drawings that reference WCB.
Duplex & Super-Duplex (F51, F53, F55)
Duplex 2205 (F51) and Super-Duplex (F53/F55) forged valve bodies for offshore, desalination, and chloride-containing process service requiring combined corrosion resistance and high strength. Duplex forgings are solution-annealed and water-quenched after forging to maintain the 50/50 austenite-ferrite microstructure. Ferrite number verified by Feritscope before release.
Quality, Standards & Testing for Valve Forgings
ASME B16.34 & API 600 / 602 Compliance
Our valve body forgings are designed and produced to meet ASME B16.34 wall thickness, end connection, and pressure-temperature rating requirements. API 600 (flanged gate valves) and API 602 (compact gate valves) dimensions are followed for oil & gas supply chain customers. Documentation references the applicable standard clause for each dimension verified.
Radiographic & Ultrasonic Inspection
Forged valve bodies for Class 900 and above are 100% ultrasonically tested (UT) per ASTM A388 to detect internal inclusions or laminations. Machined bodies are radiographically tested (RT) per ASME B16.34 Appendix I on customer request. RT eliminates any doubt about internal integrity in pressure-retaining walls — a critical assurance for high-pressure valve service.
Hydrostatic Pressure Testing
Shell hydrostatic test at 1.5x rated working pressure per ASME B16.34 or API 598 is performed on fully machined valve bodies in our test facility. Test pressure, duration (minimum 30 seconds for shell test), and result (pass/no visible leakage) are documented on the hydrostatic test certificate issued with each valve body.
PMI (Positive Material Identification)
All stainless steel, alloy steel, and duplex forged valve bodies undergo 100% PMI using a calibrated XRF (X-ray fluorescence) analyzer before machining commences. PMI prevents material mix-ups between similar-looking grades (e.g., F304 vs F316 vs 316L) that are indistinguishable by eye but have significantly different corrosion performance.
Impact Testing (Charpy, ASME B16.34)
Low-temperature service valve bodies in A105N and F11 for LNG, cryogenic, and sub-zero hydrocarbon service require Charpy impact testing at -29°C, -46°C, or lower per ASME B16.34 supplementary requirements. We perform Charpy testing on representative test specimens from each forging heat and provide the certified results with documentation.
Material Test Certificates – EN 10204 3.1
All valve body forgings for oil & gas, power, and export applications are supplied with EN 10204 3.1 material test certificates (type 3.1 certification by the manufacturer's quality department). Certificates include heat analysis, product analysis, mechanical test results, heat treatment record, and identity marking per the order specification.
Shivam Forge has been supplying forged valve bodies, bonnets, and disc components to the oil & gas, petrochemical, power generation, and process industries for over 20 years from Shapar GIDC, Rajkot. Our valve body forging portfolio covers ASTM A105 carbon steel, A182 F304 and F316 stainless steel, F11 and F22 chrome-moly alloy steel, and Duplex F51 and F53, for ball valve, gate valve, globe valve, check valve, and butterfly valve applications from Class 150 to Class 2500. The forged construction eliminates the internal porosity and shrinkage problems endemic to cast valve bodies — a critical reliability advantage in high-pressure, high-cycle process applications.
The technical case for forged valve bodies over cast ones has been well established in the API and ASME codes. ASME B16.34 explicitly calls out forged bodies as the preferred construction for Class 900 and above pressure ratings because of the demonstrably superior mechanical properties, absence of internal defects, and more predictable wall thickness uniformity. Our ASTM A105 ball valve bodies for Class 1500 service, F316 gate valve bodies for corrosive service, and F22 globe valve bonnets for high-temperature power plant steam systems are all produced to ASME B16.34 minimum wall thickness requirements with machining allowances verified before CNC work begins.
Our valve body quality system goes beyond material and dimensional verification. All stainless and alloy steel valve body forgings undergo 100% PMI (positive material identification) by XRF analysis before machining — this prevents the grade mix-up risk that exists in any multi-grade manufacturing environment. Class 900 and above bodies are UT inspected per ASTM A388 for internal soundness. Fully machined valve bodies go through shell hydrostatic testing at 1.5x rated pressure before dispatch. NDT, PMI, hydrostatic test records, and EN 10204 3.1 material certificates are all included in the standard documentation package — not charged as extras.
International buyers of forged valve bodies from India frequently encounter documentation quality issues that delay project qualification and cause supply chain bottlenecks. Shivam Forge has built its export documentation process specifically to address this — our EN 10204 3.1 certificates are issued on company letterhead with lab accreditation references, our hydrostatic test certificates reference the specific standard clause and test parameters, and our dimensional inspection reports are traceable to calibrated measuring equipment with calibration certificate numbers. This documentation discipline is why export customers in the UK, Germany, UAE, and Australia return to us repeatedly rather than switching suppliers.
To begin sourcing forged valve bodies from Shivam Forge, send your drawing or standard reference (ASME B16.34 class and size, or API 600/602 series and rating), material specification (ASTM grade), machining requirement (forged blank, semi-machined, or fully machined), quantity, and documentation requirements. We respond with a detailed quotation within 24 hours. For urgent project requirements, call +91 92657 72827 or +91 63528 77378. Our facility is at Shapar GIDC, Rajkot 360024, Gujarat — located 45 minutes from Rajkot airport and well-connected to Mundra and Kandla ports for fast international freight.
Frequently Asked Questions
What is a forged valve body and why is it better than a cast valve body?
A forged valve body is manufactured by pressing a heated steel billet in closed dies to produce the valve body shape, rather than pouring molten metal into a casting mold. Forged valve bodies have no internal porosity, shrinkage cavities, or inclusions — defects inherent to casting that can cause pressure boundary failures in service. Forged grain flow aligned with the body wall hoop stress direction gives forged bodies 30–50% better fatigue life and more consistent wall thickness than equivalent cast bodies.
What ASTM grades do you supply for forged valve bodies?
We supply ASTM A105 and A105N (carbon steel), A182 F304, F316, F316L (stainless steel), A182 F11 and F22 (chrome-moly alloy steel), A182 F51 and F53 (duplex and super-duplex stainless), and A350 LF2 (low-temperature service) for forged valve body applications. Other grades including F91 (9Cr-1Mo) for ultra-high-temperature service are produced on enquiry.
What valve types can you supply as forged bodies?
We produce forged bodies for ball valves, gate valves, globe valves, check valves (swing and piston type), butterfly valve discs and wafer bodies, and valve bonnets. Both standard catalog dimensions (ASME B16.34, API 600, API 602) and custom OEM drawings are supported.
What pressure class range do your forged valve bodies cover?
We manufacture valve body forgings for ASME B16.34 Class 150, 300, 600, 900, 1500, and 2500 pressure classes, covering NPS 1/2 to NPS 24 depending on class and material. For Class 2500 components, material selection, wall thickness, and NDT requirements are reviewed with the customer to meet the full specification.
Do you perform hydrostatic testing on forged valve bodies?
Yes. Shell hydrostatic testing at 1.5x rated working pressure per ASME B16.34 or API 598 is performed in our test facility. Seat and backseat tests are performed on machined valve assemblies. Test certificates with test pressure, duration, and result are issued with each valve body shipment.
Can you supply forged valve bodies with EN 10204 3.1 certificates?
Yes. EN 10204 3.1 material test certificates are standard for all oil & gas, power, and export supply. The certificate covers heat analysis, product analysis, mechanical test results (tensile, yield, elongation, hardness), heat treatment record, and component marking. 3.2 certificates through third-party inspection bodies are available on specific request.
What is the price of forged valve bodies in India?
Forged valve body pricing depends on material grade (A105 vs F316 vs Duplex), valve size (NPS), pressure class, machining scope, NDT requirements, and quantity. ASTM A105 Class 600 NPS 2 ball valve bodies and NPS 4 gate valve bodies are among our most competitively priced items. Email your specification to sales@shivamforge.com for a quotation within 24 hours. Call +91 92657 72827.
How do I order forged valve bodies from Shivam Forge in Rajkot?
Send your valve body drawing (or reference the applicable standard: ASME B16.34, API 600, API 602), ASTM material specification, pressure class, valve size (NPS), machining requirement (rough forging or fully machined), quantity, and documentation requirements to sales@shivamforge.com. We review and quote within 24 hours. Call +91 92657 72827 or +91 76000 66117 for assistance.
Trusted forging manufacturer — Rajkot, Gujarat
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.
- Hot forging from quality alloy steel billets
- In-house CNC/VMC machining to drawing
- Heat treatment — normalizing, hardening, tempering
- CMM inspection and full quality certification
- Custom OEM forging from customer drawings
- Fast delivery from Shapar, Rajkot, Gujarat
- Export experience — Europe, Middle East, Americas
Factory Address
Plot No.3/B, Chaitanya Industrial Area, Shapar (Rajkot) – 360024, Gujarat