SUS 304H pipes and tubes are part of the stainless steel family, renowned for their exceptional corrosion resistance and durability. Comprising 18% chromium and 8% nickel, SUS 304H is an austenitic stainless steel variant specifically designed for high-temperature applications. The addition of high carbon content enhances its heat resistance, making it suitable for use in elevated temperature environments. These pipes and tubes find wide application in industries such as chemical, petrochemical, pharmaceutical, and food processing, where resistance to corrosion and heat is paramount. The seamless nature of SUS 304H pipes ensures a smooth flow of liquids and gases, minimizing the risk of leaks and contamination.
The tubes are available in various sizes and thicknesses, catering to diverse industrial requirements. Known for their versatility, these pipes and tubes can be easily welded and fabricated, offering flexibility in design and installation. SUS 304H pipes and tubes comply with international standards, ensuring quality and reliability. They are ideal for applications demanding superior performance under challenging conditions. Whether used in heat exchangers, boilers, or other high-temperature environments, SUS 304H pipes and tubes stand out for their longevity and efficiency, making them a preferred choice in demanding industrial settings.
Specifications | ASTM A 312 ASME SA 312 / ASTM A 358 ASME SA 358 |
Dimensions | ASTM, ASME and API |
SS 304H Pipes | 1/2″ NB – 16″ NB |
ERW 304H Pipes | 1/2″ NB – 24″ NB |
EFW 304H Pipes | 6″ NB – 100″ NB |
Size | 1/8″NB TO 30″NB IN |
Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
Type | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
Form | Round Pipes, Custom Pipes, Square Pipes, Rectangular Pipe, “U” Shape, Hydraulic Pipes |
Length | Single Random, Double Random & Cut Length. |
End | Plain End, Beveled End, Treaded |
Grade | 304H | |
UNS No | S30409 | |
Old British | BS | 304S11 |
En | 58E | |
Euronorm | No | 1.4948 |
Name | X5CrNi18-10 | |
Swedish SS | 2332 | |
Japanese JIS | SUS 304H |
Grade | 304H | |
---|---|---|
min | max | |
C | – | 0.10 |
Mn | – | 2.0 |
Si | – | 0.75 |
P | – | 0.045 |
S | – | 0.03 |
Cr | 18.0 | 20.0 |
Mo | – | – |
Ni | 8.0 | 10.5 |
N | – | – |
Grade | 304H | |
---|---|---|
Tensile Strength (MPa) min | 515 | |
Yield Strength 0.2% Proof (MPa) min | 205 | |
Elongation (% in 50mm) min | 40 | |
Hardness | Rockwell B (HR B) max | 92 |
Rockwell B (HR B) max | 201 |
Grade | 304H | |
---|---|---|
Density (kg/m3) | 8000 | |
Elastic Modulus (GPa) | 193 | |
Mean Coefficient of Thermal Expansion (m/m/0C) | 0-1000C | 17.2 |
0-3150C | 17.8 | |
0-5380C | 18.4 | |
Thermal Conductivity (W/m.K) | at 1000C | 16.2 |
at 5000C | 21.5 | |
Specific Heat 0-1000C (J/kg.K) | 500 | |
Electrical Resistivity (n.m) | 720 |