Stainless Steel 1.4307 (EN10088-3) (X2CrNi19-11)
Introduction
Stainless steel 1.4307 (EN10088-3) (nicknamed X2CrNi19-11) is a low carbon austenitic stainless steel with good corrosion resistance and improved machinability. The nickel content of 1.4307 is slightly higher than that of some grades of the 1.4301 (AISI-304) type, and its higher chromium content imparts better corrosion resistance than that of 304.
Chemical composition
Stainless steel 1.4307 is composed of:
Carbon-Max 0.03%
Silicon-Max 1.00%
Manganese-Max 2.00%
Nickel-7.00 - 10.50%
Phosphorus-Max 0.045%
Sulphur-Max 0.03%
Chromium-18.00 - 20.00%
Molybdenum-Max 0.90%
Mechanical Properties
The typical mechanical properties of stainless steel 1.4307 are:
Tensile Strength-530 - 700 N/mm2
Yield Strength-200 - 450 N/mm2
Elongation-35%
Hardness-Rmax30 HRC
Applications
Stainless steel 1.4307 is suitable for a wide range of applications in industrial, commercial and domestic sectors. It is particularly suitable for food and beverage, construction and architectural applications due to its low carbon content and resistance to corrosion.
Some typical applications are:
• Pressure vessels
• Architectural components
• Medical devices
• Kitchen sinks and appliances
• Structural components
• Automotive components
• Bolts, nuts, and screws
• Pipes and tubes
• Building facades
• Sanitary ware
• Petrochemical equipment
• Valves and fittings
• Food processing and storage equipment
• Chemical processing and storage tanks
• Dairy equipment
Availability
Stainless steel 1.4307 is available in sheets, plates and bars. It is widely available from many specialist stockists, who can also advise on heat treatment and machining.
Conclusion
Stainless steel 1.4307, otherwise known as X2CrNi19-11, is a low carbon austenitic stainless steel that is suitable for a wide range of applications due to its good corrosion resistance and improved machinability. As it is composed of 7.00 to 10.50% nickel, it is slightly higher than some grades of 1.4301 (AISI-304) type, and its higher chromium content imparts improved corrosion resistance. Typical mechanical properties are a tensile strength of 530 to 700 N/mm2, a yield strength of 200 to 450 N/mm2, an elongation of 35%, and a hardness of Rmax30 HRC. It is available in sheets, plates and bars from many specialist stockists.
