Differences in pipe fitting standards
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Question: What are the differences in choosing between the standard ASTM A105 and ASTM A234 WPB? Can it be assumed that A105 has higher requirements and greater strength than A234?
The chemical composition of A234 WPB is C≤0.03, Mn=0.29~1.06, P≤0.05, S≤0.058, Si≥0.10, Cr≤0.40, Mo≤0.15, Ni≤0.40, Cu≤0.40, V≤0.08; ASTM A234 Gr.WPB carbon steel pipe fittings； The corresponding forgings are made of A105 material; differences exist in their composition, mechanical properties, and price. https://wenku.baidu.com/view/300a4eee551810a6f524860d.html Take a look at this related article; it might be helpful to you
Is ASTM A234 Gr.WPB also a forged product? The chemical composition of A234 WPB is C≤0.30. The compositional and mechanical properties are not very different; both are forged products. The question lies in this aspect, thank you!
I misunderstood; A234 refers to the material being a forged product, while A105 indicates that the product is manufactured through forging processes. Forged elbow 90°\DN20 Class3000\SW\A105\ASTM A105 seamless elbow\45°\Φ88.9×5.49\R=1.5\B16.9\WPB\A234