Description

Chemical Composition (wt %, max unless range given)
C Mn P S Si Cr Mo Nb N
<=0.025 <=1.00 <=0.040 <=0.030 <=1.00 17.5-19.5 1.75-2.50 0.15-0.80 <=0.035
Mechanical Properties (annealed tube)
Tensile Strength Yield Strength Elongation Hardness PREN
>=415 MPa >=275 MPa >=20 % <=217 HB >=24
Physical Properties (typical)
Density Melting Point Thermal Expansion Thermal Conductivity Modulus of Elasticity
7.75 g/cm3 1480-1530 °C 10.4 μm/m·°C 25.0 W/m·°C 200 GPa

444 Stainless Steel Coil

Molybdenum and niobium-alloyed ultra-low-carbon ferritic stainless steel coil; PREN value ≥24; corrosion resistance close to 316L; excellent stress corrosion resistance for solar-water-heater absorber sheets.

Chemical Composition (wt %, max unless range given)
C Mn P S Si Cr Mo Nb N
<=0.025 <=1.00 <=0.040 <=0.030 <=1.00 17.5-19.5 1.75-2.50 0.15-0.80 <=0.035
Mechanical Properties (annealed tube)
Tensile Strength Yield Strength Elongation Hardness PREN
>=415 MPa >=275 MPa >=20 % <=217 HB >=24
Physical Properties (typical)
Density Melting Point Thermal Expansion Thermal Conductivity Modulus of Elasticity
7.75 g/cm3 1480-1530 °C 10.4 μm/m·°C 25.0 W/m·°C 200 GPa