35CrMo steel equivalent material in India

35CrMo steel is a Chinese alloy steel grade primarily used for high-strength, high-toughness applications, such as in the manufacturing of components like crankshafts, gear shafts, and pressure vessels. The material is known for its good hardenability, weldability, and high strength after heat treatment.

Equivalent Material in India:

In India, the equivalent of 35CrMo steel is typically found under the IS 2002 or IS 1570 standards. The closest equivalent material in the Indian context is:

- IS 1570 Grade 1 or IS 2002 Grade 1

These grades are often used for components requiring similar mechanical properties, including high strength, good fatigue resistance, and good weldability. Here is an outline of how 35CrMo compares with IS 1570 Grade 1:

1. IS 1570 Grade 1: This is a low-alloy steel specification in India used for similar applications as 35CrMo. It offers good strength and toughness after heat treatment, making it suitable for mechanical components subject to high loads.

2. IS 2002 Grade 1: This is another equivalent in the Indian standards, also widely used for critical structural applications and high-strength components.

Chemical Composition and Properties Comparison:
- 35CrMo contains carbon (0.32-0.38%), chromium (0.90-1.20%), and molybdenum (0.15-0.25%). It also has small amounts of silicon, manganese, and phosphorus.
- The Indian equivalents such as IS 1570 Grade 1 or IS 2002 Grade 1 have similar elements in their composition, although there may be slight variations depending on the specific heat treatment and grade.

Summary:
For 35CrMo steel in India, you can look at the equivalent grades IS 1570 Grade 1 or IS 2002 Grade 1. Both offer similar mechanical properties and are used in industries requiring high-strength, high-toughness steel for structural components and machinery parts. It’s important to verify the specific requirements of your application to ensure compatibility, as there may be slight differences in alloy content and properties.