IS 2062 E350 Equivalent Grades: ASTM, EN and JIS Standards Compared
IS 2062 E350 is specified whenever a project needs more strength than standard E250 mild steel without moving to a quenched and tempered grade. This guide explains its closest equivalents in ASTM, EN, and JIS standards, for procurement teams working across multiple specification systems.
What is IS 2062 E350?
IS 2062 E350, sometimes referenced as Fe 490, is a high-tensile hot-rolled structural steel plate with a guaranteed minimum yield strength of 350 MPa and tensile strength of at least 490 MPa. Its higher strength than E250 allows engineers to specify thinner sections for the same load, while retaining good weldability through a controlled carbon equivalent.
EN 10025-2 S355: The Closest European Equivalent
EN 10025-2 S355JR/J0/J2 is widely regarded as the closest European equivalent to IS 2062 E350, both sharing a similar 350-355 MPa minimum yield strength class. The J0 and J2 sub-grades add impact testing at 0°C and -20°C respectively, broadly paralleling IS 2062 E350's own quality sub-grades for colder-climate or dynamically loaded applications.
ASTM A572 Grade 50: The Closest American Equivalent
In the American system, ASTM A572 Grade 50 is the standard reference, specifying a minimum yield strength of 50 ksi (approximately 345 MPa) — very close to IS 2062 E350's 350 MPa. A572 is a high-strength low-alloy (HSLA) structural steel widely used in bridges, buildings, and general construction in the USA, playing a similar market role to E350 in India.
JIS G3106 SM490: The Closest Japanese Equivalent
In Japan, JIS G3106 SM490 is the comparable welded-structural steel grade, with a minimum yield strength in the 315-355 MPa range depending on thickness. SM490 is commonly used in bridges and welded steel structures, occupying a similar niche to IS 2062 E350 in Indian infrastructure projects.
Confirming Genuine Equivalence
As with any cross-standard comparison, matching nominal yield strength is only the starting point. Chemical composition limits (particularly carbon equivalent, which affects weldability), impact toughness requirements, and dimensional tolerances all differ between IS 2062 E350, S355, A572 Grade 50, and SM490. When a project specification calls for one standard, source that standard directly and confirm compliance via the Mill Test Certificate rather than assuming interchangeability.
Conclusion
IS 2062 E350 sits in the same general 350 MPa yield strength class as EN 10025-2 S355, ASTM A572 Grade 50, and JIS G3106 SM490, but each carries its own chemical and testing requirements. Always verify against the Mill Test Certificate before treating these as direct substitutes. Convergence Steel stocks IS 2062 E350 with full mill certification — contact us for guidance on cross-standard specification for your project.
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