Review of modern requirements for welding of pipe high-strength low-alloy steels

OBRABOTKAMETALLOV Vol. 25 No. 4 2023 technology Ta b l e 5 Cross-sections of hybrid laser joints made of heavy gauge steel [32] A B C D E AH36 H1, T3 S355J2 H3, T3 S355J2 H3, T1 S355J2 H3, T2 SM490A H2+CW, T2 F G H I J API 5L X65 H2, T2 RQT701 H1, T3 AH36 H1, T2 High-strength H2,+ T4 API 5L X65 H2, T2 K L M N O API X65 H5, T3 API X65 H4, T3 API X65 H4, T3 S355 J2+N H0, T3 HSLA H2+CW, T3 P Q R S T S355J2+N H6, T4 P265GH H4, T3 Q235 H2, T2 S355 J2+N H0, T4 SM490A H2+CW, T3 U H0 – arc GMAW + laser H1 – arc GMAW + laser CO2 H2 – arc GMAW + fiber laser H3 – arc GMAW + disk laser H4 – arc SAW + disk laser H5 – arc SAW + laser CO2 H6 – GMAW + SAW T1 – OS_SP T2 – OS_MP T3 – DS_SP T4 – DS_MP S460 H5, T3 25 mm 25 mm 25 mm 25 mm 25 mm 28 mm 30 mm 30 mm 30 mm 32 mm 35 mm 35 mm 35 mm 40 mm 40 mm 40 mm 40 mm 40 mm 40 mm 50 mm 51 mm

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