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IS 2062 (Part 1) E450BR vs IS 2062 (Part 1) E300A

Strong Match — 88.4% match based on chemical composition and mechanical property overlap.

IS 2062 (Part 1) E450BR (IS 2062 (Part 1):2025) and IS 2062 (Part 1) E300A (IS 2062 (Part 1):2025) are both steel grades. Both fall under the Structural Steel category. IS 2062 (Part 1) E450BR is typically used for structural work: welded, bolted and riveted structures and general engineering purposes, while IS 2062 (Part 1) E300A is commonly used for structural work: welded, bolted and riveted structures and general engineering purposes. IS 2062 (Part 1) E450BR is defined under Bureau of Indian Standards (IS), originating from India, while IS 2062 (Part 1) E300A is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 2062 (Part 1) E450BR vs IS 2062 (Part 1) E300A is a 99.3% match. As per mechanical properties, the match is 66.7%. Combined, this makes them a strong match overall at 88.4%.

Frequently Compared With IS 2062 (Part 1) E450BR:
ASTM A1008 SS Grade 80 CSA G40.21 300W CSA G40.21 400A ASTM A283C ASTM A572 Gr.65 CSA G40.21 260W AS/NZS 3679.1 300 CSA G40.21 400W CSA G40.21 480W GOST 19281 09G2S AS/NZS 3679.1 350 CSA G40.21 350W
Match Breakdown
CHEMISTRY MATCH
99.3%
MECHANICAL MATCH
66.7%
OVERALL
88.4%
Specifications
Property IS 2062 (Part 1) E450BR IS 2062 (Part 1) E300A
Standard IS 2062 (Part 1):2025 IS 2062 (Part 1):2025
Category Structural Steel Structural Steel
C (%) <=0.22 <=0.22
Mn (%) <=1.70 <=1.50
Si (%) <=0.45 <=0.45
S (%) <=0.045 <=0.045
P (%) <=0.045 <=0.045
CEV (%) <=0.52 <=0.44
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 2062 (Part 1) E450BR IS 2062 (Part 1) E300A
Tensile Strength >=570 MPa >=440 MPa
Yield Strength 450 MPa (<=16mm) / 430 MPa (16-40mm) / 420 MPa (40-100mm) / 390 MPa (>100mm) 300 MPa (<=16mm) / 290 MPa (16-40mm) / 280 MPa (40-100mm) / 250 MPa (>100mm)
Elongation >=17% (<=40mm) / >=17% (40-63mm) / >=17% (63-100mm) / >=17% (>100mm) >=22% (<=40mm) / >=20% (40-63mm) / >=19% (63-100mm) / >=19% (>100mm)
Impact Energy >=20 J at room temperature (optional) Not specified
Impact Not specified not required
Typical Applications
IS 2062 (Part 1) E450BR
Structural work: welded, bolted and riveted structures and general engineering purposes
IS 2062 (Part 1) E300A
Structural work: welded, bolted and riveted structures and general engineering purposes
Can IS 2062 (Part 1) E450BR Be Substituted With IS 2062 (Part 1) E300A?
IS 2062 (Part 1) E450BR and IS 2062 (Part 1) E300A overlap closely enough on chemistry and mechanical properties that IS 2062 (Part 1) E300A is often considered as a substitute for IS 2062 (Part 1) E450BR in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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IS 2062 (Part 1) E450BR
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IS 2062 (Part 1) E300A
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Frequently Asked Questions
What is the difference between IS 2062 (Part 1) E450BR and IS 2062 (Part 1) E300A?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 2062 (Part 1) E450BR be substituted with IS 2062 (Part 1) E300A?
IS 2062 (Part 1) E450BR and IS 2062 (Part 1) E300A overlap closely enough on chemistry and mechanical properties that IS 2062 (Part 1) E300A is often considered as a substitute for IS 2062 (Part 1) E450BR in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.