321H stainless steel p分農ipes are applied to open-pi理算t machines, building materials,女中 heat-resistant parts and 對制difficult pa站司rts for heat treatme理答nt, which are highly resistant t生人o grain boundary corrosion.

Mainly used fo子這r the manufacture of high a內放nd higher pressure steam做舞 boiler pipes with high qu行低ality carbon steel, 他票alloy steel and stainless ste刀技el seamless steel tubes, the boiler tub友錢es often in h上算igh temperature and high pres雨媽sure pipe will 照書work, oxidation and corrosion但妹 in high temperature flue ga花器s and water vapor, so the 自對requirements of steel pipe have anti子鐘oxidant properties 水店lasting high str還坐ength and high, and has good organi窗自zational stab山討ility, hydraulic pilla資舊r. Therefore, it is applied to t從什he open field machi她車nes in the chemical, coal and petrole得玩um industries with hi喝樂gh corrosion一得 resistance to the grain boundary, 遠月the heat-resistant part工這s of building materials 內書and the difficult parts in土醫 heat treatment

1. oil exhaust gas burning 民習pipe

2. engine exhaust pipe

3. boiler shell, heat exchanger, h國遠eating furnace component快湖

4. muffling co上票mponents for diesel engines

5. boiler pressure vessel

6. chemical 去都transport vehicle

7. telescopic j下她oint

Spiral welded pipe for 8. combustion f我離urnace pipe and drye朋中r