Seamless Steel Pipe Fittings ASTM A234 WPB ASME/ANSI B16.9 S Butt Welding Cross

Product Specification

• Introduction of Pipe Fittings Carbon Steel A234 WPB Cross

The A234 WPB Cross is a type of pipe fitting made from carbon steel that meets the specific chemical composition requirements set by the ASTM A234 standard. This type of cross fitting is commonly used in piping systems to connect multiple pipelines and redirect flow, providing both structural support and fluid transfer capabilities.

Chemical Composition of A234 WPB:

The chemical composition of A234 WPB is carefully controlled to ensure its mechanical properties and performance. The key elements and their specified ranges are:

Carbon (C) ≤ 0.03%: Carbon is a major contributor to the strength and hardness of steel. By limiting the carbon content to 0.03% or less, A234 WPB achieves a balance between strength and ductility.
Manganese (Mn) = 0.29~1.06%: Manganese improves the hardenability and toughness of steel. The specified range of 0.29% to 1.06% provides good weldability and machinability.
Phosphorus (P) ≤ 0.05%: Phosphorus improves machinability but excessive levels can reduce weldability and ductility. The limit of 0.05% ensures good overall performance.
Sulfur (S) ≤ 0.058%: Sulfur is typically considered an impurity in steel as it can cause brittleness. However, in A234 WPB, sulfur is controlled within a narrow range to enhance machinability.
Silicon (Si) ≥ 0.10%: Silicon acts as a deoxidizer and improves the heat resistance of steel. A minimum of 0.10% ensures adequate performance.
Chromium (Cr) ≤ 0.40%, Molybdenum (Mo) ≤ 0.15%, Nickel (Ni) ≤ 0.40%, and Copper (Cu) ≤ 0.40%: These alloying elements are added in small quantities to improve the corrosion resistance, strength, and other mechanical properties of the steel.
Vanadium (V) ≤ 0.08%: Vanadium is a strengthening agent that can improve the hardness and wear resistance of steel. However, excessive levels can compromise ductility, so the limit is set at 0.08%.
Special Composition Adjustment:

An important aspect of the A234 WPB specification is the allowance for composition adjustment. Specifically, for every 0.01% decrease below the specified carbon maximum value, an increase of 0.06% manganese will be allowed above the specified maximum value, up to 1.65%. This adjustment ensures that the steel maintains its desired mechanical properties while allowing for some flexibility in the chemical composition.

Limitation on Alloying Elements:

To maintain the overall performance and properties of A234 WPB, the total amount of copper, nickel, chromium, and molybdenum shall not exceed 1.00%. This limitation ensures that the steel does not become overly brittle or lose its ductility due to excessive levels of these alloying elements.

In summary, the A234 WPB Cross is a reliable pipe fitting made from carbon steel with a carefully controlled chemical composition. Its balance of strength, ductility, and corrosion resistance makes it suitable for a wide range of piping applications.

• Details

Our company can produce carbon steel, stainless steel, and alloy steel pipe fittings according to standards such as ASME/ANSI, JIS, DIN, ISO etc. The varieties include equal diameter tees, reducing tees, tees, elbows, cross, concentric reducer, eccentric reducer etc.

We provide the very best quality pipe and fittings, prompt delivery and reliable services at competitive prices.