ASTM A358 TP347H Class1 Stainless Steel EFW Pipes
Outer Diameter：1/8inch-24inch
Type：Welded Pipe
Wall Thickness：Sch10s~Sch160
Test：Radiographic Examination
Delivery Time：Stock 7 Days
Transport Package：Packed in Bundles or Plywooden Box
ASTM A358 TP347H Class1 Stainless Steel EFW Pipes introduction
ASTM A358 TP347H Stainless Steel EFW Pipes has a high carbon content (0.04-0.10%), strengthens the austenite matrix, and has a creep rupture strength of ≥80MPa at 700°C for 1000 hours, which is 20% higher than ordinary 347 steel. It is suitable for ultra-high temperature scenarios with continuous service at 900°C (such as boiler reheaters and catalytic reforming furnace tubes).
ASTM A358 TP347H Stainless Steel round Pipes Oxidation Resistance A dense Cr₂O₃-NbO₂ composite oxide film is formed on the surface, and the oxidation resistance temperature reaches 950℃ (1150℃ for a short time), which is better than similar titanium stabilized alloys (such as 321H).
ASTM A358 TP347H Class1 Stainless Steel EFW Pipes 100% radiographic flaw detection (RT), accurately detects internal defects (such as lack of fusion, slag inclusions) of ≥2% wall thickness, and the defect detection rate reaches 99.5%
Electric Fusion Welded 347H Pipe
application of ASTM A358 TP347H EFW Round Pipe
1. Nuclear power and energy
Supercritical boiler superheater tubes (700-900℃): High niobium and high carbon design resists high temperature creep and oxidation, Class 1 flaw detection ensures the safety of nuclear-grade pipelines and reduces the risk of pipe explosion;
Fast neutron reactor auxiliary pipelines
2. Petrochemical and chemical
Catalytic reforming furnace tubes
Ethylene cracking furnace tubes
3. Aerospace and heat treatment
Aircraft engine exhaust pipes
Vacuum heat treatment furnace muffle tubes
Reasons to choose GNEE
Electrofusion welded EFW pipe is made of rolled plates and welds. GNEE manufactures and supplies ASTM 358/SA358 EFW stainless steel pipes that meet ASME and ASTM standards. We have been exporting ASTM A358 EFW stainless steel pipes for many years, please feel free to contact us if you have any needs.
EFW Stainless Steel 347H Pipe Specification
ASTM A358 / ASME SA358 TP347 / 347H EFW Class1 Stainless Steel Double Welded Pipe
Test :
1 . X-ray , Size test , Length test
2 . Chemical Analysis ( Photoelectric Emission Spectroscopic ) etc
| Material Grade | TP304 , TP304L , TP304H , TP316 , TP316L , TP316Ti , TP309S , TP310S , TP321 , TP321H , TP347 , TP347H , etc |
| Outer Diameter | 10.3mm-1219mm |
| Wall Thickness | 1.24mm-59.54mm |
| Length | Normally fixed length 6m , can as per customer's requirement |
| Standard | ASTM A312 ; ASTM A358 ; ASTM A789 ; ASTM A790 ect . |
| Process Method | ERW , EFW etc |
Stainless Steel 347H EFW Pipe Stockists
Customer visit
Testing of Austenitic Stainless Steel 347 EFW Pipe
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