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AS/NZS 1595 C450 vs AS/NZS 3678 Grade 450

Strong Match — 97.3% match based on chemical composition and mechanical property overlap.

AS/NZS 1595 C450 (AS/NZS 1595:1998) and AS/NZS 3678 Grade 450 (AS/NZS 3678:2016) are both steel grades. Both fall under the Structural Steel category. AS/NZS 1595 C450 is typically used for higher-strength cold-rolled structural steel sheet; roll-forming, purlins, high-strength cold-formed sections, while AS/NZS 3678 Grade 450 is commonly used for heavy cranes, offshore platforms, pressure vessels, structural members in high-rise construction, mining equipment.. AS/NZS 1595 C450 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand, while AS/NZS 3678 Grade 450 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand.

As per chemical composition, AS/NZS 1595 C450 vs AS/NZS 3678 Grade 450 is a 97.3% 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 97.3%.

Frequently Compared With AS/NZS 1595 C450:
ASTM A1008 SS Grade 50 CSA G40.21 400W CSA G40.21 480W AS/NZS 3679.1 350 CSA G40.21 260W AS/NZS 3679.1 300 CSA G40.21 350W GOST 19281 09G2S CSA G40.21 400A ASTM A1008 SS Grade 80 CSA G40.21 300W ASTM A572 Gr.65
Match Breakdown
CHEMISTRY MATCH
97.3%
MECHANICAL MATCH
No shared data
OVERALL
97.3%
Specifications
Property AS/NZS 1595 C450 AS/NZS 3678 Grade 450
Standard AS/NZS 1595:1998 AS/NZS 3678:2016
Category Structural Steel Structural Steel
C (%) <=0.22 max 0.2
Mn (%) <=1.60 max 1.6
Si (%) <=0.50 max 0.55
P (%) <=0.040 max 0.03
S (%) <=0.040 max 0.03
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property AS/NZS 1595 C450 AS/NZS 3678 Grade 450
Tensile Strength 500 MPa min Not specified
Yield Strength 450 MPa min Not specified
Elongation 12% min Not specified
Typical Applications
AS/NZS 1595 C450
Higher-strength cold-rolled structural steel sheet; roll-forming, purlins, high-strength cold-formed sections
AS/NZS 3678 Grade 450
Heavy cranes, offshore platforms, pressure vessels, structural members in high-rise construction, mining equipment.
Can AS/NZS 1595 C450 Be Substituted With AS/NZS 3678 Grade 450?
AS/NZS 1595 C450 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 AS/NZS 1595 C450 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
AS/NZS 1595 C450
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–2500 mm (98.43–98.43 in)
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
AS/NZS 1595 C450
2 active listings and RFQs →
AS/NZS 3678 Grade 450
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between AS/NZS 1595 C450 and AS/NZS 3678 Grade 450?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can AS/NZS 1595 C450 be substituted with AS/NZS 3678 Grade 450?
AS/NZS 1595 C450 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 AS/NZS 1595 C450 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.