ハステロイ G-30

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1. Introduction to Hastelloy G-30 Materials

      Hastelloy G-30 is a nickel-based high-temperature alloy composed of nickel, chromium, cobalt, tungsten and other elements, with a nickel content of about 37%. It is a high chromium content nickel-based alloy, which has excellent corrosion resistance than most other nickel-based and iron-based alloys for commercial phosphoric acid and mixed environments of many hyperoxidizing acid media such as nitric acid/hydrochloric acid, nitric acid/hydrofluoric acid and sulfuric acid. G-30 alloy can prevent the formation of grain boundary precipitation in the welding heat-affected zone, so its welded products are suitable for various chemical treatment projects.

2. Chemical composition of Hastelloy G30

合金 % C Cr フェ ムン そして Nb P S Co W
G-30 最低限 マージン 28.5 13.0 4.0 1.0 0.30 1.5
最大 0.03 31.5 17.0 1.5 0.8 6.0 2.4 1.50 0.04 0.02 5.0 4.0

 

3. Physical performance of Hastelloy G-30

 

密度 8.9g/cm3
融点 1350 ℃

 

室温における合金の機械的性質の最小値:

 

状態 引張強さ Rm N/mm 降伏強さ RP0.2 N/mm エロンゲーション A5 %
固体溶融状態 524 200 62

 

4. Hastelloy G-30 material characteristics

 

       For commercial phosphoric acid and mixed environments such as nitric acid/hydrochloric acid, nitric acid/hydrofluoric acid and sulfuric acid, it has superior corrosion resistance than most other nickel-based and iron-based alloys.

       G-30 alloy can prevent the formation of grain boundary precipitation in the welding heat-affected zone, so its welded products are suitable for various chemical treatment projects.

 

5. Hastelloy G-30 application field

 

Phosphoric acid equipment Sulfuric acid equipment Nitrate equipment

Nuclear fuel retreatment Nuclear waste treatment Pickling operation

Petrochemical products Fertilizer production Insecticides   

Gold mine extraction       

 

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