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AS/NZS 1595 C450 vs ASTM A572 Gr.65

Close Alternative — 73.3% match based on chemical composition and mechanical property overlap.

AS/NZS 1595 C450 (AS/NZS 1595:1998) and ASTM A572 Gr.65 (ASTM A572) 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 ASTM A572 Gr.65 is commonly used for used for bridges, buildings, transmission towers, construction equipment, offshore structures, and structural members.. AS/NZS 1595 C450 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand, while ASTM A572 Gr.65 is defined under ASTM International, originating from United States.

As per chemical composition, AS/NZS 1595 C450 vs ASTM A572 Gr.65 is a 93.2% match. As per mechanical properties, the match is 33.3%. Combined, this makes them a close alternative overall at 73.3%.

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 A283C
Match Breakdown
CHEMISTRY MATCH
93.2%
MECHANICAL MATCH
33.3%
OVERALL
73.3%
Specifications
Property AS/NZS 1595 C450 ASTM A572 Gr.65
Standard AS/NZS 1595:1998 ASTM A572
Category Structural Steel Structural Steel
C (%) <=0.22 0.23 max
Mn (%) <=1.60 1.35 max
Si (%) <=0.50 0.40 max
P (%) <=0.040 0.040 max
S (%) <=0.040 0.050 max
V (%) Not specified 0.15 max
Nb (%) Not specified 0.05 max
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 ASTM A572 Gr.65
Tensile Strength 500 MPa min 550-690 MPa
Yield Strength 450 MPa min 450 MPa min
Elongation 12% min 18-21%
Hardness Not specified 170-220 HB
Typical Applications
AS/NZS 1595 C450
Higher-strength cold-rolled structural steel sheet; roll-forming, purlins, high-strength cold-formed sections
ASTM A572 Gr.65
Used for bridges, buildings, transmission towers, construction equipment, offshore structures, and structural members.
Key Differences
Can AS/NZS 1595 C450 Be Substituted With ASTM A572 Gr.65?
AS/NZS 1595 C450 and ASTM A572 Gr.65 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
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)
ASTM A572 Gr.65
Plate → (4 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2600–4400 mm (102.36–173.23 in)
On M-EX Right Now
AS/NZS 1595 C450
2 active listings and RFQs →
ASTM A572 Gr.65
4 active listings and RFQs →
Frequently Asked Questions
What is the difference between AS/NZS 1595 C450 and ASTM A572 Gr.65?
ASTM A572 Gr.65 specifies V, Nb which are not specified for AS/NZS 1595 C450.
Can AS/NZS 1595 C450 be substituted with ASTM A572 Gr.65?
AS/NZS 1595 C450 and ASTM A572 Gr.65 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.