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Grades: ASTM A182 F11, F22, F91 & ASTM A350 LF2
Inox Steel India is a trusted manufacturer, supplier, and exporter of Pressure Vessel Components, supplying forged and machined components in ASTM A182 F11, F22, F91 (Cr-Mo alloy steels) and ASTM A350 LF2 (low-temperature carbon steel) for critical pressure applications across India, GCC, Middle East, Africa, Europe, and the Americas.
Pressure vessel components operate under high internal pressure, extreme temperatures, cyclic loading, and corrosive environments. Material selection, forging quality, and heat treatment are therefore critical for ensuring long-term safety, compliance with ASME codes, and reliable plant operation.
At Inox Steel India, pressure vessel components are manufactured through controlled forging, precise heat treatment, and application-specific machining, fully aligned with ASME Boiler & Pressure Vessel Code (BPVC) requirements.
🔧 What Are Pressure Vessel Components?
Pressure vessel components are load-bearing parts used in vessels and equipment designed to contain gases or liquids at pressures significantly different from ambient pressure. These components form the primary pressure boundary and must withstand:
Typical pressure vessel components include forged flanges, nozzles, tube sheets, rings, heads, shell components, and machined blocks, all manufactured to strict dimensional and metallurgical standards.
These grades are specifically selected for their strength, temperature resistance, and toughness, depending on service conditions.
🔹 ASTM A182 F11 (1.25Cr–0.5Mo)
Used for moderate high-temperature pressure service, offering good creep resistance and weldability.
🔹 ASTM A182 F22 (2.25Cr–1Mo)
Preferred for higher temperature and pressure applications, such as reactors and boilers, due to enhanced creep strength.
🔹 ASTM A182 F91 (9Cr–1Mo–V)
Used in very high-temperature and high-pressure service, including power plant boilers and superheaters, where long-term creep resistance is critical.
🔹 ASTM A350 LF2
A low-temperature carbon steel grade used for cryogenic and sub-zero pressure service, offering excellent impact toughness at low temperatures.
⚙️ Manufacturing Process Followed at Inox Steel India
1️⃣ Material Selection & Traceability
Certified raw materials conforming to ASTM chemical and mechanical requirements are selected with full heat traceability.
2️⃣ Forging Process
Components are produced using open-die or closed-die forging, ensuring refined grain structure and high internal integrity.
3️⃣ Heat Treatment
4️⃣ Machining
CNC machining is performed to achieve ASME dimensional tolerances for flanges, nozzles, tube sheets, and other components.
5️⃣ Inspection & Testing
All components undergo UT, MPI, PMI, and mechanical testing, ensuring compliance with pressure equipment standards.
⭐ Key Advantages of Inox Steel India Pressure Vessel Components
✔ Fully compliant with ASME BPVC requirements
✔ Superior forging quality for pressure integrity
✔ Optimized heat treatment for temperature-specific service
✔ Excellent creep, fatigue, and impact resistance
✔ Suitable for both high-temperature and low-temperature service
✔ Long operational life with reduced maintenance risk
Master Technical Datasheet – Pressure Vessel Components
For ASTM A182 F11 / F22 / F91 & ASTM A350 LF2
Manufacturer, Supplier & Exporter – Inox Steel India
| Parameter | Pressure Vessel Components |
|---|---|
| Product Type | Forged & Machined Pressure Vessel Components |
| Typical Products | Nozzles · Flanges · Tube Sheets · Heads · Rings · Shell Components · Forged Blocks |
| Manufacturing Process | Open Die Forging / Closed Die Forging → Heat Treatment → Rough / Finish Machining |
| Applicable Grades | ASTM A182 F11 · A182 F22 · A182 F91 · ASTM A350 LF2 |
| Material Category | Alloy Steel (Cr-Mo) · Low-Temperature Carbon Steel |
| Standards | ASTM · ASME Section II · ASME Section VIII · EN |
| Pressure Equipment Codes | ASME Boiler & Pressure Vessel Code (BPVC) |
| Supply Condition | Normalized & Tempered · Quenched & Tempered |
| Temperature Service Range | Cryogenic to High Temperature (Grade Dependent) |
| Pressure Rating | As per ASME Design |
| Dimensional Range | As per Drawing / Design |
| Machining Scope | Facing · Boring · Drilling · CNC Machining |
| Heat Treatment Options | PWHT · Q&T · Normalizing |
| Testing Performed | UT · MPI · PMI · Mechanical Tests |
| Inspection Standard | ASME · ASTM · EN |
| Certification | EN 10204 3.1 / 3.2 |
| Typical End Use | Pressure Vessels · Boilers · Reactors · Heat Exchangers |
| HS / HSN Code | 7228 / 7307 (Component Dependent) |
🌍 Global & Indian Industry Demand
In India, pressure vessel components are extensively used in refineries, fertilizer plants, power stations, chemical plants, and EPC projects, especially in industrial hubs such as Mumbai, Gujarat, Hazira, Jamnagar, Chennai, and Visakhapatnam.
International demand includes:
Inox Steel India supports these projects with ready forging capability and export dispatch via JNPT, Mundra, and Hazira ports.
Pressure Vessel Components – Types, Service Conditions, Sizes, Pricing Logic & Quality
Pressure Vessel Components supplied by Inox Steel India are engineered for code-compliant pressure containment, where mechanical strength, temperature resistance, toughness, and metallurgical stability are critical. Each component is manufactured based on design pressure, operating temperature, corrosion allowance, and ASME code requirements, ensuring safe and long-term operation.
🧩 Component Types Supplied
Inox Steel India manufactures and supplies a wide range of forged and machined pressure vessel components, including:
📌 All components are supplied strictly as per approved drawings and ASME design.
🌡️ Service Conditions – Grade-Wise Application
🔹 ASTM A182 F11
Service Range: Moderate high-temperature & pressure
Typical Use: Boilers, heat exchangers, process vessels
🔹 ASTM A182 F22
Service Range: Higher temperature & pressure
Typical Use: Reactors, reformers, high-pressure vessels
🔹 ASTM A182 F91
Service Range: Very high temperature & pressure (creep-critical)
Typical Use: Power plant pressure vessels, superheater systems
🔹 ASTM A350 LF2
Service Range: Low-temperature / sub-zero pressure service
Typical Use: Cryogenic vessels, LPG/LNG pressure equipment
📐 Size & Dimensional Capability
| Component | Capability |
|---|---|
| Forged Nozzles | As per ASME design |
| Flanges & Rings | Small to heavy sections |
| Tube Sheets | Thick-section machining |
| Blocks & Shell Parts | Drawing-based |
| Machining Tolerance | ASME / customer specified |
📌 Heavy-section forgings and tight machining tolerances available for critical services.
💰 Pricing Logic – Pressure Vessel Components
Pricing is project-specific and depends on:
✔ Material grade (F11 / F22 / F91 / LF2)
✔ Forging size and weight
✔ Heat treatment cycle (Q&T / PWHT)
✔ Machining complexity
✔ Testing & inspection requirements
✔ Quantity and delivery schedule
📊 Forged pressure vessel components typically offer superior lifecycle value compared to fabricated alternatives due to higher integrity and longer service life.
🔢 HS / HSN Code – Pressure Vessel Components
(Final classification depends on component type and machining level.)
🧪 Testing & Quality Assurance
All pressure vessel components are supplied after stringent inspection in line with ASME BPVC.
Standard Tests Conducted:
✔ Ultrasonic Testing (UT)
✔ Magnetic Particle Inspection (MPI)
✔ Positive Material Identification (PMI)
✔ Tensile, Yield & Elongation Tests
✔ Impact Testing (Charpy – LF2)
✔ Hardness Testing
✔ Dimensional & Visual Inspection
Optional / Project-Specific Tests:
✔ Radiography (RT)
✔ Creep & Stress Rupture (F91 – project basis)
✔ PWHT verification
✔ Third-party inspection
Third-Party Inspection:
SGS · TUV · BV · DNV · Lloyd’s · Client-appointed inspectors
All materials are supplied with EN 10204 3.1 / 3.2 certification and full traceability.
🚢 Packaging & Export Readiness
Ports of Dispatch: JNPT (Mumbai) · Mundra · Hazira
🏭 Why Choose Inox Steel India for Pressure Vessel Components?
Inox Steel India is a trusted manufacturer, supplier, and exporter of forged and machined pressure vessel components, delivering code-compliant, high-integrity components for critical pressure applications.
Our key strengths include:
✔ Full compliance with ASME Boiler & Pressure Vessel Code (BPVC)
✔ Expertise in Cr-Mo alloy steels and low-temperature carbon steels
✔ Controlled forging and heat treatment for creep & toughness
✔ CNC machining for ASME dimensional accuracy
✔ EN 10204 3.1 / 3.2 certification with complete traceability
✔ Proven execution for refineries, power plants & EPC projects
✔ Strong domestic & global export supply capability
We focus on supplying pressure-critical components that ensure plant safety, regulatory compliance, and long operational life.
🧩 Industries & Applications Served
| Industry | Application | Preferred Grade |
|---|---|---|
| Oil & Gas | Pressure vessels, reactors | A182 F11 / F22 |
| Refineries | High-pressure equipment | A182 F22 / F91 |
| Power Plants | Boilers & pressure systems | A182 F91 |
| Chemical Plants | Process pressure vessels | A182 F11 / F22 |
| Fertilizer Plants | High-temperature vessels | A182 F22 |
| Cryogenic Systems | Low-temperature vessels | A350 LF2 |
| EPC Projects | Custom pressure components | All Grades |
📦 Packaging & Export Logistics
✔ VCI-protected and moisture-resistant packaging
✔ Heat-wise and component ID marking
✔ Heavy-duty wooden crates / pallets
✔ Container-safe export packing
Regular Export Destinations:
UAE · Saudi Arabia · Oman · Qatar · Nigeria · South Africa · Germany · Italy · UK · USA · Brazil
ASTM A350 LF2 is suitable for cryogenic and sub-zero pressure applications. Yes. All pressure vessel components are manufactured in compliance with ASME BPVC. Yes. PWHT and Charpy impact testing are provided as per project requirements. Yes. All components are supplied strictly as per approved drawings and specifications. Yes. We regularly export to GCC, Europe, Africa, and the Americas. Which grade is suitable for low-temperature pressure service?
Are your components ASME BPVC compliant?
Do you provide PWHT and impact testing?
Can you manufacture as per EPC drawings?
Do you export pressure vessel components globally?