Grade GH4751
Other names: GH4751 751
Corresponds to standard GB T 12773-2021
Steel-grade alloy bars for internal combustion engine valves.
valve steel and superalloy bars for internal combustion engines
Classified as Nickel and nickel alloys.
Tags: Austenitic superalloys.
Note Scope: This standard is applicable to hot-rolled and forged bars with a diameter of no more than 120mm and cold-drawn steel, silver bright steel and alloy rods with a diameter of no more than 35mm for the manufacture of internal combustion engine valves.
timber and wire rod. GH4751 Chemical element content (%)
Composition: fe c si, mn p s, cr mo, ti, nb al, more.
The minimum value is 5 003 - 14 - 2 0.7 0.9 ni: margin.
The maximum value is 9 01 0.5 0.5 0.015 0.015 17 0.5 2.6 1.2 1.5
Other names are abbreviations for the material (see Appendix B of the original version of the 08 edition).
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