Carbon Steel Buttwelding Reducer A234 WPB-WX, Pipe Fittings For Piping Systems In Chemical Plants
Price:
NEGITABLE
MOQ:
1PC
Delivery Time:
Depends on quantity
Brand:
YUHONG GROUP
Product Description
Carbon Steel Buttwelding Reducer A234 WPB-WX, Pipe Fittings For Piping Systems In Chemical Plants
Overview of A234 WPB-WX Reducer
A234 WPB-WX Reducer is a precision-engineered pipe fitting designed to connect two pipes of different diameters in a high-integrity, permanent piping system. Its specification ensures it meets rigorous standards for material quality, performance, and safety.
Here is a breakdown of its key aspects:
1. Function and Purpose
- Primary Function: To transition fluid flow between two pipes of different diameters while maintaining a smooth, welded connection.
- Key Benefits:
- Reduces Pressure Drop: A smooth internal bore minimizes turbulence and energy loss compared to mechanical alternatives.
- High Strength: The welded joint becomes as strong as the pipe itself.
- Leak-proof: Eliminates potential leak points associated with threaded or flanged joints.
- Durability: Suitable for long-term service under demanding conditions.
2. Material & Specification (ASTM A234 WPB)
- Standard: ASTM A234 is the overarching standard for "Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High-Temperature Service."
- Grade: WPB is the most common grade for carbon steel fittings.
- Chemistry: It has a controlled chemical composition (e.g., Carbon, Manganese, Silicon, Sulfur, Phosphorus) to ensure weldability and strength.
- Mechanical Properties: It must meet minimum requirements for tensile strength and yield strength.
- Temperature Range: Typically used for service temperatures between -20°F (-29°C) and 850°F (454°C). Usage outside this range requires careful evaluation.
3. The "WX" Supplementary Requirement
This is a critical differentiator. While "WPB" defines the base material, "WX" specifies an enhanced level of quality control.
- Interpretation: "WX" is not a universal ASTM code; its meaning is defined by the manufacturer or the customer's purchase order.
- Most Common Meaning: It almost always signifies that the fittings have undergone Charpy V-Notch (CVN) Impact Testing.
- Purpose: Impact testing measures the material's toughness and resistance to brittle fracture at specified temperatures.
- Implication: WX fittings are qualified for use in low-temperature environments or applications where sudden shock loading is a concern (e.g., cryogenic service, offshore platforms, or regions with cold climates). The exact test temperature (e.g., -50°F / -46°C) would be specified in the purchase documents.
4. Manufacturing and Design
- Type: Buttwelding (BW). The ends are bevelled to match the pipe preparation for a full-penetration weld.
- Styles:
- Concentric Reducer: Symmetrical, with a common centerline. Used in vertical pipes or where fluid stratification is not an issue.
- Eccentric Reducer: Asymmetrical, with one flat side. Used in horizontal pipelines to avoid trapping air (if flat on top) or to allow complete drainage (if flat on bottom).
- Dimensions: Governed by standards like ASME B16.9, which specifies the precise outside diameters, wall thicknesses, and lengths for each size combination.
Chemical Composition (%) of ASTM A234 WPB
| Grade | C | Mn | P | S | Si | Cr | Mo | Ni | Cu | V | Nb |
| WPB | 0.3 | 0.29-1.06 | 0.05 | 0.058 | 0.1min | 0.4 | 0.15 | 0.4 | 0.4 | 0.08 | 0.02 |
Mechanical properties of ASTM A234 WPB
| Tensile Requirements | WPB | WPC |
| Tensile Strength, min, ksi[MPa] | 60-85 [415-585] | 70-95 [485-655] |
| Yield Strength, min, ksi[MPa] | 32 [240] | 40 [275] |
Application of A234 WPB-WX Reducer
- Power generation plants
- Oil and gas refineries
- Chemical processing plants
- High-pressure steam lines
- Any industrial piping system requiring a reliable, permanent welded connection between pipes of different sizes.
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Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai
