It gives you faster machining, longer tool life, better tolerances, superior machined surface quality, and reduced scrap losses compared to conventionally produced 303/1.4305.
It is an austenitic stainless steel that belongs to the standard CrNi stainless steel family. It is a sulfur-alloyed variant with improved machinability. Due to its high sulfur content, the corrosion resistance of 303/1.4305 can be slightly lower than the corrosion resistance of grade 1.4301.
The austenitic CrNi standard grades are the most widely used group of stainless steels. Their well-balanced material properties make them suitable for the fabrication of many products.
Nuts, bolts, and screws
Machined parts for process equipment
The typical chemical composition for this grade is given in the table below, together with composition limits given for the product according to different standards. The required standard will be fully met as specified on the order.
The chemical composition is given as % by mass.
The mechanical properties of the available products in soft annealed condition at room temperature are given in the table below. Moderate strengths can be reached at elevated temperatures (~550 °C/1022 °F). Temperatures for excessive scaling are close to 850 °C/1562 °F.
This grade, along with other austenitic corrosion-resistant steels, exhibits very high ductility and high elongation to fracture. It is not susceptible to brittle fracture in the solution annealed condition.
Product type: Hot rolled quarto plate
Typical (thickness 15 mm)
Product type: Wire rod
Typical physical properties are shown in the table below.
|Density||Modulus of elasticity||Thermal exp. at 100 °C||Thermal conductivity|