Kubota alloys HK40 and HK50 are austenitic Fe-Cr-Ni alloys that have been standard heat-resistant materials for more than four decades. With moderately high temperature strength, oxidation resistance, and carburization resistance the alloys are used in a wide variety of industrial applications. HK 50 has slightly higher carbon content. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on casting, heat treating, machining, and joining. Filing Code: SS-998. Producer or source: Kubota Metal Corporation, Fahramet Division.

Kubota alloy HN is an austenitic Fe-Ni-Cr alloy with long-term creep-rupture properties that are intermediate between those of HK40 and HP40 alloys. Carburization resistance is better than that of HK40, but oxidation resistance is generally lower, making the alloy suitable for long service at 1095 deg C (2000 deg F). This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as casting, machining, and joining. Filing Code: SS-1060. Producer or source: Kubota Metal Corporation, Fahramet Division.

Kubota alloy KHR20T is an iron-chromium-nickel cast alloy with microalloying additions that increase its strength to greater than that of HK40 from 871-982 C (1600-1800 F). This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on casting and joining. Filing Code: SS-740. Producer or source: Kubota Metal Corporation.

Kubota alloy KHR12C is an austenitic Fe-Cr-Ni-Nb casting alloy developed from the well known HH type II grade. This alloy is superior to other grades in components that are subjected to frequent thermal cycling and shock. The alloy is available in both centrifugal and static castings. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on high temperature performance as well as casting and joining. Filing Code: SS-738. Producer or source: Kubota Metal Corporation.

Kubota alloy KHR35C is similar to HP alloy with the addition of niobium to increase its creep-rupture strength. Typical applications include components and assemblies for severe carburizing environments, such as ethylene pyrolysis coils. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as casting and joining. Filing Code: SS-753. Producer or source: Kubota Metal Corporation.

KHR16C was developed from KHR12C (See Alloy Digest SS-738, March 1999), but contains niobium for strength and aged ductility. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on high temperature performance as well as casting and joining. Filing Code: SS-1008. Producer or source: Kubota Metal Corporation, Fahramet Division.

KHR 35CT is a modification of KHR 35C (see Alloy Digest SS-753, July 1999) by the addition of titanium as a microalloying improvement. The higher strength obtained allows for more catalyst in reformer furnaces. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on casting and joining. Filing Code: SS-766. Producer or source: Kubota Metal Corporation.

KHR45A is a niobium-containing Ni-Cr-Fe alloy with very high temperature usage and high caburization resistance. It is typically used in pyrolysis tubes and fittings. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as joining. Filing Code: Ni-570. Producer or source: Kubota Metal Corporation.