What is the base material of pipe fittings made of A420-WPL6? Where can I find relevant information in the standards?
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I’m seeking advice from friends in the materials field on this forum: 1. What is the base material of the pipe fittings made of A420-WPL6? 2. In which standards can the relevant information be found clearly? Thank you
(It can be found in ASME Standard Section D – Properties of Materials. For ASTM A420 Gr WPL6, when used in seamless fittings, the material is ASTM A333 Gr.6. The minimum operating temperature for ASTM A333 Gr.6 is -30°C; therefore, 16MnD material can be used as a substitute. It is important to ensure that the manganese content meets the requirements specified in ASTM A420 WPL6, which is 0.50%-1.35%. This aspect must be taken into account when using 16MnD as a substitute. According to ASME standards, ASTM A420 WPL6 must undergo low-temperature impact testing at -45°C, rather than -40°C, with an average impact value of more than 18 J.)
Chemical composition: C, Si, Mn, P, S, Ni
A333 Gr3: ≤0.19, 0.18-0.37, 0.31-0.64, ≤0.025, ≤0.025, 3.18-3.82
Gr6: ≤0.30, ≥0.10, 0.29-1.06, ≤0.025, ≤0.025
Chemical composition: C, Si, Mn, P, S, Ni
A333 Gr3: ≤0.19, 0.18-0.37, 0.31-0.64, ≤0.025, ≤0.025, 3.18-3.82
Gr6: ≤0.30, ≥0.10, 0.29-1.06, ≤0.025, ≤0.025
Thank you very much for your answer. If base material of A350-LF2 is used, can it meet the requirements of A420-WPL6?
The chemical composition meets the requirements, and the impact performance is also satisfactory. .
Where does ASTM A420WPL6 originate from? Is it specified in the ASME B16.9 standard?
ASTM A420WPL6 is also a forged product, but it is described as wrought, while A350-LF2 is also a forged product, but it is referred to as forged. It seems the two sources of material are in different forms.