The rigor issues described in the GB150 standard
Thread Content
Do the requirements in Clause 9.5 of GB150.2 regarding the sulfur and phosphorus content in the weld metal produced by welding materials, and Clause 9.6 regarding the diffused hydrogen content in that weld metal, apply to welding materials used for pressure components made of high-alloy steel?
Requirements 9.5 and 9.6 in GB150.2 regarding the sulfur and phosphorus content as well as the diffused hydrogen content in the weld metal of welding materials apply to all welding materials for pressure vessels, including those used for pressure components made of high-alloy steels. .
However, points C) in clauses 5.1.2.3 and 5.1.2.4 of 150.4 explicitly specify low-alloy steel
In clauses 5.1.2.3 and 5.1.2.4 of 150.4-2024, C refers to low-alloy steels whose minimum standard tensile strength is greater than 540 MPa
Yes, but clause 9.6 of 150.2 only specifies that steels with a minimum standard tensile strength of over 540 MPa are required; does this term \"steel\" include high-alloy steels as well?
It is clear that low-alloy steel is meant, and high-alloy steel is definitely not included
Standard terminology is imprecise and prone to causing misunderstandings.
Excluded; below 590 should refer to low-alloy steel
A judgment can be made by using steel with a minimum standard tensile strength of over 540 MPa as the criterion.