There are no 16Mn forgings in GB/T20801.1-2025

2026-01-12View Original

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The new version of GB/T20801.1-2025 no longer includes 16Mn NB/T47008 forgings. Does this mean that NB/T47008 is on the verge of disappearing, to be replaced by A105 GB/T12228-2025?

Reply #22026-01-14

I also noticed that both 16Mn and 20 forged are gone

Reply #32026-01-14

Low-temperature steel and stainless steel forgings are also gone

Reply #42026-01-28

In Part 5 of Table B.1 of GB/T 20801-2025, there are no forgings among the stainless steels, whereas they were present in the 2020 version.

Reply #52026-02-24

The material grade code indicates \"forged\" in the parentheses

Reply #62026-02-25

This question requires an expert's answer.

Reply #72026-04-22

May 1st is coming up soon, and the new standard must be adopted; what grade should be used for forgings~~~?

Reply #82026-04-24

Table B.1 excludes the relevant materials from NB/T 47008~47010-2017 for the forgings section, for unknown reasons.

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There are no 16Mn forgings in GB/T20801.1-2025

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