TP 304H / 1.4948

Stainless Steel Alloy 304H | Stainless Steel Alloy 304 | Super Austenitic Alloy | Seamless Tubes Stainless Steel Alloy | Stainless Steel 304H & 304 Alloy Manufacturers

Kanakratna steelage is a renowned exporter, manufacturer, stockist, supplier, and stockholder of high-quality Stainless Steel Alloy Seamless Tubes. These tubes are celebrated for their excellent corrosion resistance, durability, and high strength, making them ideal for a wide range of applications including petrochemical, pharmaceutical, food processing, and marine industries. Stainless steel alloy tubes maintain their integrity and performance across various temperature ranges and environments, offering superior weldability and ease of fabrication. This ensures reliable and long-lasting performance in even the most challenging conditions.

ASTM A312 Gr Tp304h is a high carbon version of the Tp304 material. It is an austenitic stainless steel stabilized with titanium for better strength and corrosion resistance properties. The ASTM A312 Tp 304h material also has small amounts of molybdenum, nitrogen, niobium and other elements. The main components of ASTM A312 304h are the carbon, manganese, phosphorus, sulfur, silicon and chromium. Our A312 304h products come in different types, shapes and sizes. We produce A312 Tp304h pipes for high temperature services with high toughness. The wear and tear resistance of the SA312 Tp304h material is high because of the high carbon content.


Technical Specifications


CHEMICAL COMPOSITION (% by weight)
Element Min Max
C 0.04 0.10
Mn - 2.0
Si - 0.75
P - 0.045
S - 0.030
Cr 18 20
Mo 2 3
Ni 8 10.5
N -
MECHANICAL PROPERTIES
Temper Annealed
Tensile Rm 75 ksi (min)
Tensile Rm 515 MPa (min)
R.p. 0.2% Yield 30 ksi (min)
R.p. 0.2% Yield 205 MPa (min)
Elongation (% in 50 mm) 40 % (min)
PHYSICAL PROPERTIES (Room Temperature)
Specific Heat (0-100°C) - J.kg-1.°K-1
Thermal Conductivity - W.m -1.°K-1
Thermal Expansion - mm/m/°C
Modulus Elasticity - GPa
Electrical Resistivity - Ohm-cm
Density - g/cm3