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IS 2062 (Part 1) E550BR vs AS/NZS 3678 Grade 450

Strong Match — 96.9% match based on chemical composition and mechanical property overlap.

IS 2062 (Part 1) E550BR (IS 2062 (Part 1):2025) and AS/NZS 3678 Grade 450 (AS/NZS 3678:2016) are both steel grades. Both fall under the Structural Steel category. IS 2062 (Part 1) E550BR is typically used for structural work: welded, bolted and riveted structures and general engineering purposes, while AS/NZS 3678 Grade 450 is commonly used for heavy cranes, offshore platforms, pressure vessels, structural members in high-rise construction, mining equipment.. IS 2062 (Part 1) E550BR is defined under Bureau of Indian Standards (IS), originating from India, while AS/NZS 3678 Grade 450 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand.

As per chemical composition, IS 2062 (Part 1) E550BR vs AS/NZS 3678 Grade 450 is a 96.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 96.9%.

Frequently Compared With IS 2062 (Part 1) E550BR:
CSA G40.21 480W AS/NZS 3679.1 300 GOST 19281 09G2S AS/NZS 3679.1 350 CSA G40.21 400A ASTM A1008 SS Grade 50 CSA G40.21 260W CSA G40.21 300W CSA G40.21 350W ASTM A1008 SS Grade 80 ASTM A283C ASTM A572 Gr.65
Match Breakdown
CHEMISTRY MATCH
96.9%
MECHANICAL MATCH
No shared data
OVERALL
96.9%
Specifications
Property IS 2062 (Part 1) E550BR AS/NZS 3678 Grade 450
Standard IS 2062 (Part 1):2025 AS/NZS 3678:2016
Category Structural Steel Structural Steel
C (%) <=0.22 max 0.2
Mn (%) <=1.70 max 1.6
Si (%) <=0.50 max 0.55
S (%) <=0.020 max 0.03
P (%) <=0.025 max 0.03
CEV (%) <=0.54 Not specified
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) E550BR AS/NZS 3678 Grade 450
Tensile Strength >=650 MPa Not specified
Yield Strength 550 MPa (<=16mm) / 530 MPa (16-40mm) / 520 MPa (40-100mm) Not specified
Elongation >=12% (<=40mm) Not specified
Impact Energy >=15 J at room temperature (optional) Not specified
Typical Applications
IS 2062 (Part 1) E550BR
Structural work: welded, bolted and riveted structures and general engineering purposes
AS/NZS 3678 Grade 450
Heavy cranes, offshore platforms, pressure vessels, structural members in high-rise construction, mining equipment.
Key Differences
Can IS 2062 (Part 1) E550BR Be Substituted With AS/NZS 3678 Grade 450?
IS 2062 (Part 1) E550BR and AS/NZS 3678 Grade 450 overlap closely enough on chemistry and mechanical properties that AS/NZS 3678 Grade 450 is often considered as a substitute for IS 2062 (Part 1) E550BR in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
IS 2062 (Part 1) E550BR
No active listings currently.
AS/NZS 3678 Grade 450
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–4200 mm (98.43–165.35 in)
On M-EX Right Now
IS 2062 (Part 1) E550BR
0 active listings and RFQs →
AS/NZS 3678 Grade 450
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 2062 (Part 1) E550BR and AS/NZS 3678 Grade 450?
IS 2062 (Part 1) E550BR specifies CEV which is not specified for AS/NZS 3678 Grade 450.
Can IS 2062 (Part 1) E550BR be substituted with AS/NZS 3678 Grade 450?
IS 2062 (Part 1) E550BR and AS/NZS 3678 Grade 450 overlap closely enough on chemistry and mechanical properties that AS/NZS 3678 Grade 450 is often considered as a substitute for IS 2062 (Part 1) E550BR in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.