ASTM A358 TP304H 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 TP304H Stainless Steel EFW Pipes introduction
ASTM A358 TP304H stainless steel electric fusion welded (EFW) pipe is an electric fusion welded austenitic stainless steel pipe used in high temperature or corrosive environments. TP304H is an austenitic stainless steel, "H" represents high carbon type, specially optimized for high temperature strength, electric fusion welding is formed by filler metal fusion welding, suitable for medium, high pressure and high temperature conditions.
Large diameter TP304H stainless steel welded pipe
Advantages of ASTM A358 TP304H EFW Round Pipe
ASTM A358 TP304H Industrial welded pipes: Excellent for moderately corrosive media such as nitric acid and organic acids, but weaker in chloride stress corrosion resistance than the molybdenum-containing TP316 series. Temperature resistance in dry air can reach 870°C, and short-term peak temperature can reach 925°C (better than TP304L due to higher carbon content). Suitable for piping systems operating at 425–850°C for a long time (such as boiler superheaters, petrochemical heating furnace pipes).
Reasons to choose GNEE
GNEE has 18 years of experience in supplying international market companies and organizations, and is able to complete any order in the shortest possible time. All the products we provide meet technical requirements.
We will guarantee the quality of your products. Including raw material inspection, production process supervision, appearance inspection and finished product inspection. We provide unique packaging, which increases the protection rate of goods by 30%. In addition, we also accept customized packaging.
ASTM A358 Grade 304H efw pipe Specification
Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 304H | min. | 0.04 | - | - | -0.045 | - | 18.0 | - | 8.0 | - |
| max. | 0.10 | 2.0 | 0.75 | 0.030 | 20.0 | 10.5 | ||||
Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304H | 515 | 205 | 40 | 92 | 201 |
Physical Properties In The Annealed Condition
Grade |
Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304/L/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
304H Industrial Welded Pipe Manufacturers
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