Alloy structural steel 30CrMnTi

Introduction

30CrMnTi alloy structural steel is one of the most commonly used ultra-high strength structures in engineering and building design. It is an excellent structural steel with superior creep resistance, high temperature strength, good fatigue resistance and excellent strength to weight ratio. Because of its excellent properties, 30CrMnTi alloy structural steel is widely used in various applications, including automotive frames, heavy equipment frames and bridges.

Composition

30CrMnTi alloy structural steel is composed of 0.24~0.32 wt% carbon, 0.50~0.80 wt% manganese, 0.60~1.25 wt% chromium, 0.45~0.60 wt% Molybdenum, 0.035 wt% vanadium, 0.030 wt% titanium, 0.60~0.90 wt% nickel, and the balance mainly being iron.

Mechanical Properties

30CrMnTi alloy structural steel has excellent mechanical properties. The tensile strength and yield strength can reach 1600MPa and 1400MPa respectively. It also exhibits good toughness, high fatigue strength and superior creep resistance. It has an elongation of 5-15% and a hardness range of HRC 28-32. It also exhibits good thermal shock resistance.

Applications

30CrMnTi alloy structural steel has excellent properties, which make it suitable for a wide range of applications. It is commonly used in automotive frames, heavy equipment frames, and bridges. It also finds uses as components for hydraulic lifts and machine tools.

Conclusion

30CrMnTi alloy structural steel is an excellent alloy with excellent mechanical properties, including good strength, creep resistance, fatigue resistance and thermal shock resistance. It is suitable for a wide range of applications, including automotive frames, heavy equipment frames, and bridges. Its excellent performance makes it a popular choice for many engineering purposes.

30CrMnTi Alloy Structural Steel

30CrMnTi alloy structural steel, also known as 30CrMnTiA, is a medium-carbon steel, with good plasticity, toughness and strength, good hardenability, strong heat resistance and good corrosion resistance.

30CrMnTi alloy structural steel is also known as A30302 steel, often used to make automobile and tractor parts, screws, gears and other components. It is also utilized in the production of steel structures, bridges, ships and vehicles.

The nominal chemical composition of 30CrMnTi is 0.27% to 0.34% carbon, 0.90% to 1.20% manganese, 0.17% to 0.37% silicon, 0.17% to 0.37% chromium, 1.00% to 1.30% titanium, 0.17% to 0.37% vanadium, 0.90% to 1.10% molybdenum, and 0.15% to 0.35% phosphorus and 0.025% to 0.050% sulfur.

30CrMnTi have good plasticity, toughness and strength during hot work treatment. It also has good hardenability and heat resistance.

30CrMnTi provide better strength but lower malleability compared to other alloy structural steels such as 45 and 60CrMnTi. This makes it suitable for applications that require better strength in comparison to other steels. Applications such as gears, shafts, fasteners and various other components need careful selection of 30CrMnTi.

30CrMnTi is commonly cold-worked, welded and even heat treated to provide desired properties. Typically, post heat treatment with normalizing and tempering will be done in order to obtain the desired mechanical properties.

In general, 30CrMnTi is a stainless steel which offers good strength and toughness at medium strength levels. It has good heat resistance, corrosion resistance, hardenability and machinability, making it suitable for use in a wide range of applications.