Ring steel Alleima® 12R11

blockaeronautical

Alleima® 12R11 is an austenitic stainless, general purpose steel with good spring properties that in most cases fulfill demands regarding corrosion resistance, mechanical strength, fatigue and relaxation properties. Service temperature: up to 250°C (480°F) Standards ASTM: (301) EN Number: 1.4310 EN Name: X 10 CrNi 18-8 SS: 2331 Chemical composition (nominal) Chemical composition (nominal) % C - Si - Mn - P - S - Cr - Ni 0.10 - 1.2 - 1.3 - ≤0.030 - ≤0.010 Applications Alleima® 12R11 is suitable for springs and other high strength components in the mechanical, electronics and computer industries. It is a very good spring material that in most cases fulfils demands regarding corrosion resistance, mechanical strength, fatigue and relaxation properties. Corrosion resistance It is very important to avoid corrosion in spring applications so as not to impair spring properties. Alleima® 12R11 is an austenitic stainless steel and has sufficient corrosion resistance in most spring applications. The corrosion resistance is almost the same as ASTM 304 and, compared to other low alloyed spring steels, Alleima® 12R11 has superior performance. However, all austenitic steels of this type are susceptible to stress corrosion cracking (SCC) when in contact with chloride solutions at elevated temperatures. Bending The values given below have been obtained by bending according to Swedish standard SS 11 26 26 method 3 (in a 90° V-block with a 25 mm die opening, a sample of 35 mm width, turned so that the burrs of the blanked edges face into the bend). They can be used as guidance for the smallest recommended bending radius.