Your Professional Carbon Steel Pipe Fittings Supplier
Henan Shuangzhong Intelligent Technology Co., Ltd., an expert in precision manufacturing and pipeline system solutions, was founded in 1999. We are a professional manufacturer specializing in precision machining customization, pipeline equipment and pipe fittings customization, as well as the manufacturing and processing of rubber hoses.
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![API 5L Grade Pipe Fittings]()
API 5L Grade Pipe FittingsApplicable Fittings: Factory-made wrought steel butt-welding fittings (elbows, tees, reducers, caps, crosses)Size Range: NPS ½ to 48 (DN 15 to 1200), covering both seamless and welded fittings; wall -
![ASTM A53 90° LR Elbow]()
ASTM A53 90° LR ElbowName:ASTM A53 90° LR ElbowBrand：SHUANGZHONGThickness:Sch5s-SchxxsType: Elbow, Tee, Reducer, Cross, Cap, Short PipeStandards: ASME, MSS, ISO, DIN, JIS -
![Carbon Steel Concentric Reducer]()
Carbon Steel Concentric ReducerName: Carbon Steel Concentric ReducerStrength grade: Based on material gradeMaterial: Carbon steel (e.g., ASTM A234 WPB, ASTM A105)Standard: ASME B16.9Mechanical properties: Tensile strength
Why choose us
One-Stop Customized Solutions
We are committed to providing customers with one-stop customized solutions — from design support and precision manufacturing to quality assurance — to meet the diverse needs of various industries for high-performance, high-precision, and high-reliability industrial components.
Certification
We ensure quality through comprehensive system certifications: the company has passed the ISO 9001:2015 quality management system certification and the American Petroleum Institute (API) quality certification system.
Sales Market
Our products have been successfully exported to many countries and regions around the world, including the United States, Canada, Germany, India, Malaysia, Pakistan, the United Arab Emirates, Egypt, and the Middle East. We have earned the trust and praise of overseas customers.
On-Site Quality Supervision
We dispatch professional quality inspection teams to supervise the production of steel pipe fittings and rubber hoses. From raw material entry to the shipment of finished products, we maintain strict quality control throughout the process and accommodate special customer requirements, such as product identification and packaging methods.
Carbon Steel Pipe Fittings
Carbon steel pipe fittings are components used to connect, control, or terminate sections of carbon steel pipes. They are made from carbon steel — an alloy of iron and carbon — which provides excellent mechanical strength and thermal resistance.
Product Parameters
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Type |
concentric reducer(con reducer) , eccentric reducer(ecc reducer), seamless reducer , butt welding reducer,carbon steel reducer(CS reducer), mild steel reducer(MS reducer), alloy steel reducer(AS reducer), stainless steel reducer(SS reducer)… |
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Size |
1/2"-48"(DN15-DN1200) |
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Varieties |
SCH5,SCH10,SCH20,SCH30,STD,SGP, SCH40, SCH60,XS, SCH80, XXS,SCH100,SCH120,SCH140,SCH160 |
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Standred |
ANSI B 16.9/ANSI B16.28/MSS SP43/MSS P75/JIS2311/JIS 2312/JIS2313/ DIN2615 /GB-12459/GB-T13401,Gost17378 |
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Material |
Carbon steel: ASTM A234 GR WPB , ST37.2 , ST35.8…… |
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Alloy steel: A234 WP5/WP9/WP11/WP22/WP91, A420 WPL6,A860 WHPY 42/52/60/65/70/80...... |
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Stainless steel: A403 WP304/TP304 , WP304L/TP304L , WP316/TP316 ,WP316L/TP316L, WP321/TP321 , WP310/TP310….. |
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Surface treatment |
Carbon steel:Shot blasted, black painting, rust-proof oil, transparent oil,galvanizing,, hot galvanizing |
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Alloy steel:Shot blasted, black painting, rust-proof oil,transparent oil, galvanizing,,hot galvanizing |
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Stainless steel: pickled,Polish |
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Application Fields |
Chemical Industry /Petroleum Industry /Power Industry/Metallurgical Industry Building Industry /Ship-building Industry |
Chemical Composition
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Carbon (C) |
Manganese (Mn) |
Phosphorus (P) |
Sulfur (S) |
Silicon (Si) |
Copper (Cu) |
Nickel (Ni) |
Chromium (Cr) |
Molybdenum (Mo) |
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≤0.30% |
0.29-1.06% |
≤0.035% |
≤0.035% |
0.10-0.35% |
≤0.40% |
≤0.40% |
≤0.30% |
≤0.15% |
Carbon steel fittings come in various grades, each suitable for specific applications based on their chemical composition and mechanical properties. Common grades include ASTM A234 WPB, ASTM A105, and ASTM A350 LF2, each offering distinct advantages for different temperature and pressure conditions.
Types of Carbon Steel Pipe Fittings
To understand how these fittings serve in different setups, it’s helpful to look at their types and specific functions:
Elbows (90° and 45°)
Used to change the direction of flow in a piping system. They help in routing pipelines around obstacles or within confined spaces.
Tees
Allow the flow to be split into two directions or combined from two into one. Ideal for branching pipe systems.
Reducers
Used when changing pipe size from one diameter to another. This helps maintain fluid velocity and pressure.
Caps and Plugs
Seal the ends of pipes to stop flow or prepare the system for future extension.
Couplings
Connect two pipes in a straight line. They can be full or half couplings depending on the connection type.
Unions
Enable easy disassembly and reassembly of pipes for maintenance.
How Are These Fittings Installed?
Carbon steel fittings are typically joined using
Threaded Connections
Common in low-pressure applications. They’re easy to install and remove.
Socket Welds
Provide a strong, durable joint, ideal for small diameter piping.
Butt Welds
Used in high-pressure applications for a smooth internal flow and long-term stability.
Flanged Ends
Useful in systems where frequent dismantling is needed.
Carbon steel fittings are a staple across many industries due to their strength and adaptability. Common uses include:
Oil & Gas Pipelines: For transporting crude oil, natural gas, and refined products.
Power Plants: In both fossil and nuclear facilities, they carry steam, cooling water, and other critical fluids.
Chemical Processing: Suitable for handling aggressive chemicals under pressure.
Water Treatment Plants: For both wastewater and clean water pipelines.
Fire Protection Systems: Due to their reliability under pressure and temperature fluctuations.
Coating For Carbon Steel Pipe Fittings
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Types Of Coating |
Coating Color |
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Black painting coating |
Black |
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Anti rust coating |
Mid grey, black red oxide |
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PE coating |
Milky-white or Black |
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PTFE coating |
Grey and Black |
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Zinc coating |
Gray |
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FBE coating |
Green, Red and Blue |
Our Certificate
FAQ
As one of the leading carbon steel pipe fittings manufacturers in China, we warmly welcome you to buy high quality carbon steel pipe fittings for sale here from our factory. Good service and reasonable price are available.
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