IS 2002 Grade 1 (Boiler and Pressure Vessel Quality Carbon Steel) IS 2002 Grade 1 is a carbon-manganese steel grade specifically designed for pressure vessels, boilers, and heat exchangers. This grade conforms to the Indian Standard IS 2002, and is known for its good weldability, moderate tensile strength, and resistance to elevated temperatures and internal pressure. It is commonly supplied in a normalized condition to improve its mechanical and metallurgical properties for pressure-retaining applications. Ideal for medium-pressure service, IS 2002 Gr.1 is used extensively in industries such as power generation, petrochemicals, refineries, and thermal processing. Key Features: Suitable for moderate temperature and pressure environments Excellent weldability and formability for fabrication of boilers and vessels Supplied in normalized condition for uniform microstructure and strength Compliant with Indian standards, making it ideal for domestic industrial applications Typical Mechanical Properties: Property IS 2002 Grade 1 Yield Strength ≥ 205 MPa Tensile Strength 410–530 MPa Elongation ≥ 22% Impact Resistance Moderate Working Temperature Up to 400°C (depending on design) Common Applications: Steam boilers and economizers Heat exchangers and superheaters Pressure vessels in thermal and chemical plants Drums and headers in boiler systems Reactors and storage tanks for pressurized media Summary: IS 2002 Gr.1 is a dependable and locally recognized material for the fabrication of boilers and pressure vessels operating under moderate conditions. With its good mechanical properties and weldability, it ensures safety, reliability, and compliance with standard pressure equipment design requirements.