ASTM A276 S31803 Introduce

ASTM A276 S31803 steel is a versatile steel alloy, due to its low cost and good mechanical properties. It is strong, deformable, hardenable and weldable, making it useful for a variety of applications. It has good impact resistance and is relatively corrosion-resistant, making it well-suited for many industrial and manufacturing purposes.

Smelting temperature:1159°C - 1335°C

Application:Stainless steel bars and profiles

ASTM A276 S31803 Material Chemical Composition

The chemical composition of the ASTM A276 S31803 steel are as follows:

ElementMinMax
Nitrogen (N)0.08000.2000
Molybdenum (Mo)2.50003.5000
Nickel (Ni)4.50006.5000
Chromium (Cr)21.000023.0000
PhOsphorus (P)-0.0300
Sulfur (S)-0.0200
Manganese (Mn)-2.0000
Silicon (Si)-1.0000
Carbon (C)-0.0300

ASTM A276 S31803 Material Mechanical Properties

The mechanical properties of the ASTM A276 S31803 steel are as follows:

YieldRp0.2 ≤ 735 (MPa)
TeileRm≤ 872 (MPa)
ImpactKV/Ku41(J)
ElongationA12%
Reduction in cross section on fractureZ41%
As-Heat-Treated ConditionSolution and Aging, Annealing, Ausaging, Q+T,etc
Brinell hardness (HBW)111

ASTM A276 S31803 Material Thermal Properties

The thermal performance parameters of the ASTM A276 S31803 steel are as follows:

Temperature (°C)12624324
Modulus of elasticity (GPa)-772-
Mean coefficient of thermal expaion ×10-6/(°C)--33
Thermal conductivity (W/m·°C)-34.314.2
Specific thermal capacity (J/kg·°C)-122-
Specific electrical resistivity (Ω mm²/m)0.22--
Deity (kg/dm³)--433
Poisson’s coefficient, ν--331

ASTM A276 S31803 Material Machining Technology

ASTM A276 S31803 is a very traditionally used material in many industries and it is seen as a premiere material choice due to its vast amount of advantageous properties. It is often chosen due to its rust prevention and its ability to be worked easily. It can resist most corrosion, it is heat resistant, it has very good cleanliness, and it is best used for pieces with intricate shapes.