Physical properties of semi-austenitic precipitation hardening stainless steel 0Cr17Ni5Mo3N (AM350)

0Cr17Ni5Mo3N (AM350) is a precipitation hardening unqualified stainless steel with good physical properties. This alloy is widely used in the field of fasteners, watchcases, jewelry and surgical instruments due to its high strength, excellent corrosion resistance and good formability.

Physical properties of 0Cr17Ni5Mo3N (AM350) are as follows:

1. Mechanical Properties: 0Cr17Ni5Mo3N (AM350) exhibits good strength, hardness and ductility at room temperature. After heat treatment, the increase in the tensile strength of 0Cr17Ni5Mo3N (AM350) can be up to 680 MPa and the hardness can be up to 350 HBW.

2. Corrosion resistance: 0Cr17Ni5Mo3N (AM350) has excellent corrosion resistance in both natural and artificial mediums. In the test of salt spray, 0Cr17Ni5Mo3N (AM350) can achieve more than 480 hours of protection and will not show rust spots. Therefore, it is widely used in aviation, aerospace and marine engineering.

3. Formability: 0Cr17Ni5Mo3N (AM350) can be shaped under the action of various forming methods such as bending, drawing, punching and so on. At the same time, it has a certain plastic performance and can be used to make bent pipes and complex shapes.

4. Heat treatment: 0Cr17Ni5Mo3N (AM350) has good heat treatment stability, its heat treatment temperature range is 1050 ~ 1150℃. After quenching and tempering, 0Cr17Ni5Mo3N (AM350) can be further strengthened to meet different application requirements.

In conclusion, 0Cr17Ni5Mo3N (AM350) has good physical properties, such as good strength, excellent corrosion resistance and good formability, which make it suitable for fasteners, watch cases, jewelry and surgical instruments.

注：0Cr17Ni5Mo3N(AM350)是一种没有质保认证的沉淀硬化不锈钢，具有良好的物理性能，广泛用于螺丝制品、手表壳、珠宝和外科器械等领域。 0Cr17Ni5Mo3N(AM350)的物理性能如下：

1、机械性能：0Cr17Ni5Mo3N(AM350)在室温时具有良好的强度、硬度和塑性。经热处理后，0Cr17Ni5Mo3N(AM350)的抗拉强度可提高至680MPa，硬度可达350 HBW。

2、耐腐蚀性：0Cr17Ni5Mo3N(AM350)对天然和人工介质有极佳的耐腐蚀性。经盐雾试验，0Cr17Ni5Mo3N(AM350)能够获得超过480小时的保护，不会出现锈斑。因此，大量应用在航空、航天和船舶工程中。

3、可塑性：0Cr17Ni5Mo3N(AM350)可在弯曲、拉伸、冲孔等多种成形方法的作用下变形成型。同时，具有一定的塑性行为，可用于制作弯管和复杂形状。

4、热处理：0Cr17Ni5Mo3N(AM350)具有良好的热处理稳定性，其热处理温度区间为1050～1150℃。经过淬火和回火，0Cr17Ni5Mo3N(AM350)可以进一步增强，以满足不同的应用要求。

总之，0Cr17Ni5Mo3N(AM350)具有良好的物理性能，如良好的强度、优异的耐腐蚀性和良好的可塑性，使其适用于螺丝制品、手表壳、珠宝和外科器械等应用。

AM350 (0Cr17Ni5Mo3N) is a precipitation hardened non-magnetic stainless steel with excellent mechanical and corrosion resistant properties. It has superior toughness and weldability due to its low carbon content and can be used in a range of applications from cryogenic temperatures to 800F (427C).

The mechanical properties of AM350 include yield strength (0.2% PS) of 180 ksi (1241 MPa), a tensile strength of 220 ksi (1517 MPa) and a reduction of area of 49%. Its fatigue strength is also quite good, with a maximum endurance limit for a 106 cycles of 125 ksi (862 MPa).

In terms of corrosion resistance, AM350 is resistant to a wide range of acids and chemicals, and It also exhibits excellent resistance to pitting and stress corrosion. Its superior resistance to general corrosion comes from the high chromium content (17%) and nickel content (5%), combined with its balanced chemical composition.

AM350 also exhibits good machinability, with a machinability rating of 90 relative to AISI 1212 steel. In terms of thermal stability at elevated temperatures, AM350 is suitable for use up to 800F (427C).

Overall, AM350 is a precipitation hardened stainless steel with a great combination of strength, toughness, formability, machinability and corrosion resistance, which makes it a great choice for a range of applications. Its low carbon content also makes it an excellent choice for welding applications.