SAE J403 15L33 Introduce
SAE J403 is an SAE Standard for "Chemical Composition of SAE Carbon Steels." This standard specifies the chemical composition of carbon steels and includes information such as the maximum percentage of carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum and vanadium. SAE J403 is issued by the Society of Automotive Engineers (SAE). SAE J403 15L33Carbon steel is a type of iron-carbon alloy, it contains carbon elements in different proportions and different other elements. Carbon steel is mainly used in automotive, mining and aerospace engineering. Automotive applications such as casting engine components, bodywork and frames, and aerospace applications such as aircraft frames and turbine machinery parts typically use carbon steel.
Smelting temperature:1928°C - 1281°C
Application:Chemical Compositions of SAE Carbon Steels
SAE J403 15L33 Material Chemical Composition
The chemical composition of the SAE J403 15L33 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.1000 |
| Sulfur (S) | - | 0.0500 |
| Lead (Pb) | 0.1000 | 0.3500 |
| PhOsphorus (P) | - | 0.0400 |
| Manganese (Mn) | 1.1000 | 1.4000 |
| Carbon (C) | 0.3000 | 0.3700 |
| Boron (B) | 0.0005 | 0.0030 |
SAE J403 15L33 Material Mechanical Properties
The low alloy content creates a material with moderate strength and a relatively low carbon content. This makes SAE J403 15L33 typical steel relatively easy to work with and resistant to corrosion. Heat treatment is an important process for SAE J403 15L33 steel. Through the use of heat treatment, the microstructure and properties of the material can be altered to suit specific applications.
The mechanical properties of the SAE J403 15L33 steel are as follows:
| YieldRp0.2 | ≤ 256 (MPa) |
| TeileRm | ≤ 566 (MPa) |
| ImpactKV/Ku | 13(J) |
| ElongationA | 32% |
| Reduction in cross section on fractureZ | 24% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 233 |
SAE J403 15L33 Material Thermal Properties
The thermal performance parameters of the SAE J403 15L33 steel are as follows:
| Temperature (°C) | 24 | 247 | 869 |
| Modulus of elasticity (GPa) | - | 138 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 24 |
| Thermal conductivity (W/m·°C) | - | 34.3 | 22.2 |
| Specific thermal capacity (J/kg·°C) | - | 144 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.44 | - | - |
| Deity (kg/dm³) | - | - | 144 |
| Poisson’s coefficient, ν | - | - | 134 |
SAE J403 15L33 Material Machining Technology
SAE J403 15L33 has good weldability compared to other steels due to its low-carbon content. It can be welded using the oxy-aceltylene process, gas metal arc welding, and resistance welding. Additionally, it can be brazed or soldered for joining different pieces of steel together.