ASTM A312 TP304L Seamless Pipe 1/4"-24" OD Sch40 for Power Plant High Pressure Systems

TP304L features ultra-low carbon design to significantly enhance intergranular corrosion resistance. Its high Cr-Ni content maintains strength and toughness during continuous operation above 400°C. The heavy-wall Sch40 construction provides higher pressure tolerance, safely withstanding chloride corrosion and thermal cycling in power plant steam and high-pressure feedwater systems.

Grade: TP304, TP304H, TP304L, TP316, TP316L, TP321, TP321H, TP317L, TP310S, TP347H, S31803, 2205, 2507, and more

Manufacturing Method: Seamless (Cold-drawn)

Length: Standard 6m / Customized available

Certification: ISO, PED certified

TP304L seamless pipes excel in power generation due to ultra-low carbon content (<0.03%) preventing intergranular corrosion during welding and 400-550°C service. Their 18% Cr/8% Ni composition maintains oxidation resistance in boiler feedwater systems, while Sch40 heavy-wall design withstands 1,500+ psi steam pressure.

• Immunity to chloride stress corrosion cracking (SCC) in cooling water circuits
• Consistent toughness for thermal cycling in superheater headers
• PED/ASME B36.19 compliance eliminating post-weld heat treatment

Three-tier quality control process ensures superior product reliability:

• Raw material PMI verification
• Full-length ET + UT during production
• 100% dimensional inspection with per-pipe photo documentation pre-shipment

All data is traceable with available SGS/TÜV third-party reports, ensuring consistent performance and stable quality across batches.

LCL shipments: Plywood crates + end caps

FCL shipments: Woven sacks with bundling + end caps

All wooden crates comply with automated US/EU warehouse requirements. Impact/moisture-proof packaging ensures transit safety, delivering shelf-ready products that eliminate customer reprocessing.

SMLSCO maintains 2000 tons of TP304L pipe year-round (Sch5s - XXS), with standard specifications shippable within two weeks. Centralized procurement of high-alloy billets and scaled cold-drawing processes optimize cost efficiency - empowering distributors with dual competitive edge in pricing and lead time for high-corrosion applications.