TP347H high pressure boiler adopts high temperature resistant stainless steel seamless tube
TP347H high-pressure boiler heat-resistant stainless steel seamless steel pipe round billet is the main material used to manufacture heat exchanger tubes, reheater tubes, steam pipes and petrochemical heat exchange tubes for large generator sets. The application environment is high temperature and high pressure, and the use environment is relatively harsh. This requires good high temperature structure stability, long-lasting performance, high temperature corrosion resistance, and good thermal processing, cold working, welding and bending. Processing performance.
TP347H trial chemical composition (mass fraction, %): 0.04 ~ 0.1C, ≤ 2.0Mn, ≤ 0.75Si, ≤ 0.03P, ≤ 0.01S, 9.0 ~ 12.0Ni, 17.0 ~ 19.0Cr, 8 × w (C) ~ 1.0% w (Nb). The production process is as follows: batching→EAF electric arc furnace initial refining→AOD furnace refining→die casting→finishing→heating→forging→straightening→finishing→inspection→packaging→into the warehouse.
The TP347H round billet was developed by using the optimized internal control components, through the electric furnace initial refining, the argon-oxygen furnace refining, the die-casting intogot, the Φ550mm reinforced mill, and the hot-rolling production process. According to the relevant standards, the comprehensive control of low-fold structure, non-metallic inclusions, α-phase content and grain size of the tube blank has reached the domestic advanced level. The quality and performance of the heat-resistant stainless steel seamless steel pipe for high-pressure boilers produced by TP347H round billet are very stable.
TP347H trial chemical composition (mass fraction, %): 0.04 ~ 0.1C, ≤ 2.0Mn, ≤ 0.75Si, ≤ 0.03P, ≤ 0.01S, 9.0 ~ 12.0Ni, 17.0 ~ 19.0Cr, 8 × w (C) ~ 1.0% w (Nb). The production process is as follows: batching→EAF electric arc furnace initial refining→AOD furnace refining→die casting→finishing→heating→forging→straightening→finishing→inspection→packaging→into the warehouse.
The TP347H round billet was developed by using the optimized internal control components, through the electric furnace initial refining, the argon-oxygen furnace refining, the die-casting intogot, the Φ550mm reinforced mill, and the hot-rolling production process. According to the relevant standards, the comprehensive control of low-fold structure, non-metallic inclusions, α-phase content and grain size of the tube blank has reached the domestic advanced level. The quality and performance of the heat-resistant stainless steel seamless steel pipe for high-pressure boilers produced by TP347H round billet are very stable.
评论
发表评论