AISI 630 Round Bars is a hardenable, martensitic stainless steel with high wear resistance, good corrosion resistance and high yield strength. By combining excellent mechanical properties and high corrosion resistance, AISI 630 can be used in a marine environment, but in standing seawater it is susceptible to crevice corrosion.

17-4 PH is manufactured in several strength levels, for example: in solution annealed (AT) and hardened versions (H900, H925, H1025, H1075, H1100, H1150, H1150M).

The AISI 630 material can be use in temperatures up to 450°C, but also suitable in the low temperature range. At minus temperatures an excellent impact strength is given. Steel 1.4542 can be machined in solution-annealed and hardened condition, but the machinability depends on the hardness. AISI 630 is used in the aerospace, chemical, petrochemical and petroleum industries, in medical and dental technology, in plant construction and in shipbuilding.

Grade AISI630 Round Bars stainless steels are martensitic stainless steels that are precipitation hardened to achieve excellent mechanical properties. These steel achieve high strength and hardness following heat treatment. The heat and corrosion resistance of grade 630 are similar to that of grade 304 steels. This grades is also commonly referred to as grade 17-4PH.

One of the key benefits of this grade is that it is available in solution treated conditions, at which they can be easily machined and age-hardened to attain high strength. The age treatment of grade 630 is carried out at low temperatures, to avoid significant distortion. Therefore, this grade is used for applications such as the manufacture of long shafts that do not require re-straightening after heat treatment.

AISI 630 Chemical Composition :