ERW Steel Pipe DN355 ASTM A178 For Heat Recovery Boiler Systems

Huayang ERW DN355 ASTM A178 pipes are manufactured using advanced high-frequency electric resistance welding technology with strict dimensional and weld quality control. ASTM A178 material is specifically designed for electric-resistance-welded boiler and superheater tubes, offering excellent heat resistance, stable mechanical strength, and reliable performance under elevated temperature conditions. These pipes are widely used in heat recovery boilers, thermal circulation systems, waste heat utilization projects, and industrial energy facilities. Smooth internal surfaces improve thermal efficiency and fluid circulation performance. Each pipe undergoes hydrostatic testing, non-destructive weld inspection, and mechanical property verification to ensure dependable long-term operation in demanding thermal service environments.