IS 1030 = carbon STEEL castings (ductile, weldable, 410-620 MPa). IS 210 = grey IRON castings (brittle, not weldable, 150-400 MPa). Use steel for pressure/structural, iron for vibration damping/machinability.

IS 1030:2018 — Carbon Steel Castings for General Engineering Purposes

IS 1030 : 2018

Carbon Steel Castings for General Engineering Purposes

ASTM A27/A27M

CurrentFrequently UsedSpecificationMaterials Science · Steel and Reinforcement

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Summary

IS 1030 is the primary specification for carbon steel castings in India. Five grades based on tensile strength (410-620 MPa). All grades require heat treatment. Used for valve bodies, pump casings, crane components, and general engineering castings requiring ductility and weldability.

Specification for carbon steel castings for general engineering covering grades, chemical composition, mechanical properties, heat treatment, and NDT requirements.

Key Values

Grade 1 tensileMin 410 MPa

Grade 3 tensileMin 520 MPa

Grade 5 tensileMin 620 MPa

Practical Notes

! ALL grades must be heat treated — normalised minimum, Q&T for Grade 4 and 5.

! Carbon steel castings are weldable — unlike grey iron. Repair welding is possible with proper WPS.

! Specify RT or UT for critical/pressure-retaining castings.

! Grade 1 (410/200) is the most commonly used for general engineering.

Cross-Referenced Codes

IS 210:2009Grey Iron Castings

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