Carbon Steel Cap Fittings Manufacturer in India
Carbon Steel Cap Fittings Manufacturer in India
Sachiya Steel International, established in 2005 and headquartered in Mumbai, India, is a trusted Carbon Steel Cap Fittings Manufacturer in India, supplier, and exporter with over 20+ years of industry experience. We supply carbon steel pipe caps and a wide range of industrial pipe fittings for oil and gas, petrochemical, chemical, power generation, marine, and engineering applications. Our products support standard, bulk, and project-specific requirements for customers across 85+ countries.
We offer carbon steel cap fittings in various grades, sizes, and specifications to meet diverse piping needs. Our products follow applicable ASTM, ASME, ANSI, DIN, and ISO standards, with inspection, testing, and material traceability documentation available as required. Supported by ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and applicable TÜV certifications, we focus on consistent quality, competitive pricing, and reliable global delivery. Our wide material portfolio also includes stainless steel, alloy steel, duplex, nickel alloy, and specialty metal fittings to serve different industrial requirements.
What Are Carbon Steel Cap Fittings?
Carbon steel cap fittings are pipe fittings designed to close the open ends of pipes and prevent the flow of liquids or gases. Made from carbon steel, these fittings offer good strength, durability, and pressure resistance for industrial piping systems. They are commonly used in oil and gas, petrochemical, chemical, power generation, and water processing industries. Carbon steel pipe caps are available in different sizes, wall thicknesses, and grades to suit specific operating conditions and piping requirements.
These fittings typically feature a butt weld connection that provides a secure, leak-resistant joint when properly installed. Buyers can choose from different carbon steel grades, such as ASTM A234 WPB, depending on project specifications and service conditions. Carbon steel cap fittings are suitable for permanent pipe closure in new installations, maintenance work, and industrial projects. Their reliable performance and compatibility with standard piping systems make them a practical choice for applications that require a strong and durable pipe-end closure.
Carbon Steel Cap Fittings
High-quality Carbon Steel Cap Fittings for demanding oil and gas, petrochemical, chemical, power generation, marine and engineering applications, available in various sizes, grades and specifications to ensure durability, strength and reliable performance.
Carbon Steel Cap Fittings Types We Supply
As a trusted carbon steel cap fittings manufacturer, we offer different types of pipe caps to meet the needs of various industrial piping systems. Our range supports oil and gas, petrochemical, chemical, power generation, and engineering applications. Each type is selected based on pipe size, material grade, wall thickness, and project specifications to ensure a suitable fit and reliable pipe-end closure.
- Butt Weld Carbon Steel Caps: Provide a secure welded connection for permanent pipe closure.
- Seamless Carbon Steel Caps: Suitable for applications requiring seamless construction and consistent material integrity.
- Welded Carbon Steel Caps: Designed to meet specific industrial piping requirements using welded construction.
- Custom Carbon Steel Caps: Available for project-specific dimensions and technical requirements, subject to availability.
We supply carbon steel cap fittings in grades such as ASTM A234 WPB, with sizes and specifications based on applicable standards and customer requirements. Our range supports standard orders, bulk purchases, and industrial projects across different sectors.
Why Choose Carbon Steel Cap Fittings?
Carbon steel cap fittings offer a practical solution for closing pipe ends in industrial piping systems. They provide the strength and durability needed for demanding operating conditions while supporting reliable performance across various applications. As an experienced carbon steel cap fittings manufacturer, we supply products that meet different industrial requirements for quality, material grades, and dimensional accuracy.
- High Strength: Carbon steel provides the mechanical strength needed for demanding piping applications.
- Durable Construction: These fittings can withstand regular industrial use when selected for suitable operating conditions.
- Leak-Resistant Closure: Properly installed caps help prevent leakage from closed pipe ends.
- Wide Grade Availability: Options such as ASTM A234 WPB support different project specifications.
- Multiple Size Options: Available in different dimensions to match piping system requirements.
- Cost-Effective Solution: Carbon steel offers a practical balance of strength, performance, and material cost.
- Versatile Applications: Suitable for oil and gas, petrochemical, chemical, power generation, and engineering industries.
Choosing the right carbon steel cap fittings helps ensure compatibility with your piping system, supports safe operation, and meets the technical requirements of your project.
Types of Caps Fittings
Explore our range of industrial cap fittings, including pipe end caps, butt weld caps, threaded caps, socket weld caps, stainless steel caps and carbon steel caps for diverse piping applications.
Pipe End Cap Fittings
→
Butt Weld Cap Fittings
→
Threaded Cap Fittings
→
Socket Weld Cap Fittings
→
Stainless Steel Cap Fittings
→
Carbon Steel Cap Fittings
→Get Certified Carbon Steel Cap Fittings at Competitive Factory Prices
Carbon Steel Cap Fittings Specifications
| Property | Specification |
|---|---|
| Product Name | Carbon Steel Cap Fittings |
| Types | Butt weld cap, forged threaded cap, forged socket weld cap, seamless, welded, heavy wall |
| Butt Weld Size Range | 1/2" to 24" NB |
| Forged Size Range | 1/8" to 4" NB |
| Wall Thickness | Sch 10, 20, 30, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS (butt weld), Class 3000 and 6000 (forged) |
| Head Shape | 2:1 ellipsoidal (standard), hemispherical on request |
| Grades | ASTM A234 WPB, WPC, A420 WPL6, MSS SP-75 WPHY, ASTM A105, A350 LF2 |
| Dimension Standards | ASME B16.9, MSS SP-75, ASME B16.11 |
| Material Standards | ASTM A234, A420, A105, A350 |
| End Type | Bevel end per ASME B16.25 (butt weld), socket weld or threaded (forged) |
| Construction | Seamless, welded and forged |
| Surface Finish | Black painted, varnished, oil coated, epoxy coated, sand blasted, galvanised (forged) |
| Heat Treatment | Normalising, stress relieving |
| Testing | PMI, hardness, dimensional, hydrostatic, NDT, impact test (WPL6 and LF2) |
| Certification | EN 10204 3.1, 3.2 on request |
| How to Order | Size, type, schedule or class, grade and standard (for example: Carbon Steel Cap 6", Sch 40, A234 WPB, ASME B16.9) |
| Custom Work | Special sizes, walls, heads and coatings |
Carbon Steel Cap Fittings Chemical Composition
Values are in %, maximum unless a range is shown.
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| A234 WPB | 0.30 | 0.29–1.06 | 0.10 min | 0.050 | 0.058 | 0.40 | 0.40 | 0.15 |
| A234 WPC | 0.35 | 0.29–1.06 | 0.10 min | 0.050 | 0.058 | 0.40 | 0.40 | 0.15 |
| A105 | 0.35 | 0.60–1.05 | 0.10–0.35 | 0.035 | 0.040 | 0.30 | 0.40 | 0.12 |
| A350 LF2 | 0.30 | 0.60–1.35 | 0.15–0.30 | 0.035 | 0.040 | 0.30 | 0.40 | 0.12 |
A234 grades also carry up to 0.40% copper and 0.08% vanadium. A105 carries up to 0.40% copper and 0.05% vanadium.
Carbon Steel Cap Fittings Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| A234 WPB | 415–585 | 240 min | 22 min |
| A234 WPC | 485–655 | 275 min | 22 min |
| A420 WPL6 | 415–585 | 240 min | 22 min |
| A105 | 485 min | 250 min | 22 min |
| A350 LF2 Class 1 | 485–655 | 250 min | 22 min |
Carbon Steel Cap Fittings Size Chart
| NB | Inch | Pipe OD (mm) | Where This Carbon Steel Cap Size Goes |
|---|---|---|---|
| 15 | 1/2" | 21.3 | Instrument and sample line ends |
| 25 | 1" | 33.4 | Compressed air and utility line ends |
| 50 | 2" | 60.3 | Cooling water and fuel line ends |
| 80 | 3" | 88.9 | Fire water and lube oil line ends |
| 100 | 4" | 114.3 | Steam and process header ends |
| 150 | 6" | 168.3 | Pump manifold and header ends |
| 200 | 8" | 219.1 | Main process header ends |
| 300 | 12" | 323.9 | Transfer line and cooling circuit ends |
| 400 | 16" | 406.4 | Refinery and plant main closures |
| 600 | 24" | 609.6 | Pipeline and water main closures |
Carbon Steel Cap Fittings Dimension Chart (ASME B16.9 and B16.11)
Butt weld caps (ASME B16.9). E is the overall length of the cap for standard walls, and E1 is the overall length for heavier walls. The walls shown are standard weight (STD), extra strong (XS) and double extra strong (XXS), in mm.
| NPS | Pipe OD | Length (E) | Length for Heavier Walls (E1) | STD Wall | XS Wall | XXS Wall |
|---|---|---|---|---|---|---|
| 1/2" | 21.3 | 25 | 25 | 2.77 | 3.73 | 7.47 |
| 3/4" | 26.7 | 25 | 25 | 2.87 | 3.91 | 7.82 |
| 1" | 33.4 | 38 | 38 | 3.38 | 4.55 | 9.09 |
| 1 1/2" | 48.3 | 38 | 38 | 3.68 | 5.08 | 10.15 |
| 2" | 60.3 | 38 | 44 | 3.91 | 5.54 | 11.07 |
| 3" | 88.9 | 51 | 64 | 5.49 | 7.62 | 15.24 |
| 4" | 114.3 | 64 | 76 | 6.02 | 8.56 | 17.12 |
| 6" | 168.3 | 89 | 102 | 7.11 | 10.97 | 21.95 |
| 8" | 219.1 | 102 | 127 | 8.18 | 12.70 | 22.23 |
| 10" | 273.1 | 127 | 152 | 9.27 | 12.70 | 25.40 |
| 12" | 323.9 | 152 | 178 | 9.53 | 12.70 | 25.40 |
| 14" | 355.6 | 165 | 191 | 9.53 | 12.70 | – |
| 16" | 406.4 | 178 | 203 | 9.53 | 12.70 | – |
| 18" | 457.2 | 203 | 229 | 9.53 | 12.70 | – |
| 20" | 508.0 | 229 | 254 | 9.53 | 12.70 | – |
| 24" | 609.6 | 267 | 305 | 9.53 | 12.70 | – |
Forged threaded caps (ASME B16.11). A is the overall length, D is the outside diameter and G is the minimum wall at the closed end. All dimensions are in mm.
| NPS | Class 3000 A | Class 3000 D | Class 3000 G | Class 6000 A | Class 6000 D | Class 6000 G |
|---|---|---|---|---|---|---|
| 1/2" | 32 | 28 | 6.4 | 33 | 38 | 7.9 |
| 3/4" | 37 | 35 | 6.4 | 38 | 44 | 7.9 |
| 1" | 41 | 44 | 9.7 | 43 | 57 | 11.2 |
| 1 1/4" | 44 | 57 | 9.7 | 46 | 64 | 11.2 |
| 1 1/2" | 44 | 64 | 11.2 | 48 | 76 | 12.7 |
| 2" | 48 | 76 | 12.7 | 51 | 92 | 15.7 |
| 2 1/2" | 60 | 92 | 15.7 | 64 | 108 | 19.0 |
| 3" | 65 | 108 | 19.0 | 68 | 127 | 22.4 |
For other sizes, walls and for forged socket weld caps, we cut the cap to the ASME table or to your drawing.
Carbon Steel Cap Fittings Grades We Supply
Selecting the right material grade is essential for achieving a secure pipe-end closure and long-term performance in industrial systems. Our carbon steel cap fittings are available in several grades to suit different service environments, fabrication needs, and engineering specifications. As a carbon steel cap fittings supplier, we help buyers identify suitable material options for their piping projects.
- ASTM A234 WPB: Commonly used for standard industrial butt weld piping systems.
- ASTM A234 WPC: An option for applications requiring the specified mechanical properties of this grade.
- ASTM A420 WPL6: Designed for low-temperature butt weld piping applications.
- ASTM A350 LF2: Used for forged components in low-temperature service.
- MSS SP-75 WPHY Grades: Suitable for high-strength pipeline applications where specified by the project.
- ASTM A105: Used for forged components, including certain threaded and socket weld connections.
Grade availability, dimensions, impact testing, coatings, and inspection requirements depend on the order and applicable standards. Reviewing the operating temperature, design pressure, and piping specifications helps ensure the selected cap meets the project's technical requirements.
Carbon Steel Cap Fittings Standards and Certifications
Meeting recognised industry standards helps ensure that carbon steel cap fittings meet the dimensional, material, and performance requirements of industrial piping systems. As a carbon steel cap fittings supplier in India, we offer products manufactured to applicable specifications, including ASME B16.9 for butt weld caps, MSS SP-75 for high-strength pipeline fittings, and ASME B16.11 for forged fittings. Material options follow relevant standards such as ASTM A234, ASTM A420, ASTM A105, and ASTM A350. Where required, end preparation complies with ASME B16.25, while threaded connections follow ASME B1.20.1.
To support quality assurance, we provide inspection and material documentation based on individual project requirements. Available documents may include EN 10204 3.1 material test certificates, chemical composition and mechanical test reports, dimensional inspection records, and positive material identification (PMI) reports. Third-party inspection, impact testing, EN 10204 3.2 certification, and other applicable compliance documents can also be arranged when specified. These measures help buyers verify material identity, check product conformity, and meet their project quality requirements.
Carbon Steel Cap Fittings Applications
- Oil and Gas Pipelines: Carbon steel cap fittings close the ends of headers, manifolds and pig traps, and seal sections during pressure testing.
- Refineries and Petrochemical Plants: Caps close process headers, utility lines and spare branches in hydrocarbon piping.
- Power Plants: Carbon steel caps seal boiler feed, steam and cooling water headers at moderate temperatures.
- Water Supply and Treatment: Caps close water mains, distribution headers and future tie-in points.
- Fire Protection Systems: Contractors use carbon steel caps to close sprinkler mains and hydrant headers.
- HVAC and Chilled Water Systems: Caps close chilled water, hot water and condenser water headers.
- Fuel and Lube Oil Lines: Caps seal fuel, lube oil and compressed air lines in plants and workshops.
- Hydrostatic Testing and Commissioning: Crews weld or screw on caps to seal sections during testing, and many projects source them from a carbon steel cap fittings supplier in India like us.
- Construction and Infrastructure: Carbon steel caps close utility and process piping on industrial and civil projects.
Carbon Steel Cap Fittings Manufacturing Capacity and Export Capability
Our manufacturing facility in Vasai, near Mumbai, has the capacity to produce up to 100 tonnes of carbon steel cap fittings per month. We manufacture butt weld caps from 1/2" to 24" NB and forged caps from 1/8" to 4" in carbon steel, low-temperature steel and high-yield grades. With forming, forging, heat treatment, machining and coating handled at one facility, we maintain better control over production and can accommodate different sizes, grades and finishes in the same order.
We also have an export capacity of up to 100 tonnes per month and handle shipments ranging from sample quantities to full container loads. As a carbon steel cap fittings supplier in India, we arrange shipments through Nhava Sheva (JNPT) and Mundra ports and manage export documentation in-house. Our products reach customers in 85+ countries, with a focus on proper packaging, smooth customs clearance and timely delivery.
Why Choose Us as Your Carbon Steel Cap Fittings Manufacturer in India?
You should choose us because we have been serving the piping industry since 2005, bringing over two decades of experience in understanding different product requirements, technical specifications, and project demands. As a carbon steel cap fittings manufacturer in India, we offer caps in various sizes, dimensions, and grades, including ASTM A234 WPB, WPC, ASTM A420 WPL6, and other grades based on availability and project specifications. Our range supports standard and custom requirements for oil and gas, petrochemical, power generation, chemical, and engineering applications.
With a monthly manufacturing and export capacity of up to 100 tons, we handle bulk orders and large-scale industrial requirements with an organised supply process. We serve customers across 85+ countries, offering products manufactured to applicable ASTM, ASME, and other recognised standards. From material selection and dimensional requirements to inspection documentation and international shipping, we work to meet your specific needs. Our focus on quality, competitive pricing, and dependable delivery makes us a practical sourcing partner for domestic and international buyers seeking carbon steel cap fittings for industrial projects.
Countries We Export To
We supply carbon steel cap fittings to customers in more than 85+ countries, supporting industrial projects across major international markets. As an experienced carbon steel cap fittings supplier, we serve buyers in the oil and gas, petrochemical, power generation, water treatment, and engineering sectors. Our export network helps businesses source products for standard piping systems, large-scale projects, and bulk requirements.
Our export markets include:
- North America: USA, Canada, and Mexico
- Europe: United Kingdom, Germany, France, Italy, the Netherlands, and Spain
- Middle East: UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain
- Asia-Pacific: Singapore, Malaysia, Indonesia, Thailand, Vietnam, and Australia
- Africa: South Africa, Nigeria, Egypt, and Kenya
- South America: Brazil, Chile, and Peru
We support international orders with export packaging, shipping coordination, and the required documentation for overseas deliveries. EN 10204 3.1 material test certificates are available as specified, while 3.2 certification and third-party inspections can be arranged upon request. Our export process focuses on proper documentation, secure packing, and dependable delivery to help customers manage their international procurement requirements.