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GB/T 41749-2022 English PDF (GBT41749-2022)

GB/T 41749-2022 English PDF (GBT41749-2022)

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GB/T 41749-2022: General requirements for surface condition of hot-rolled sections
This document specifies the surface condition classification, measurement rules, grinding requirements, repair welding and its inspection rules, numerical rounding off for hot-rolled sections. This document applies to the surface condition of hot-rolled H-beam and split T-beam, hot-rolled equilateral angle steel, hot-rolled unequal angle steel, hot-rolled L-beam, hot-rolled I-beam, hot-rolled channel steel sections (hereinafter referred to as section), of which the nominal thickness is 3mm ~ 160mm. The surface includes all surfaces except the rolled edge.

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