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AS/NZS 3679.1 300 vs ASTM A572 Grade 50

Related Material — 62% match based on chemical composition and mechanical property overlap.

AS/NZS 3679.1 300 (AS/NZS 3679.1:2016) and ASTM A572 Grade 50 (ASTM A572) are both steel grades. Both fall under the Structural Steel category. AS/NZS 3679.1 300 is typically used for hot-rolled structural bars and sections for general structural framing, while ASTM A572 Grade 50 is commonly used for high-strength low-alloy structural steel; buildings, bridges, transmission towers, construction equipment, general structural fabrication. AS/NZS 3679.1 300 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand, while ASTM A572 Grade 50 is defined under ASTM International, originating from United States.

As per chemical composition, AS/NZS 3679.1 300 vs ASTM A572 Grade 50 is a 92.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 62%.

Frequently Compared With AS/NZS 3679.1 300:
IS 2062 E250B0 CSA G40.21 480W CSA G40.21 400W AS/NZS 1595 C450 ASTM A1008 SS Grade 80 AS/NZS 1595 C350 ASTM A1008 SS Grade 50 IS 2062 E250A ASTM A572 Gr.65 CSA G40.21 260W CSA G40.21 300W ASTM A283C
Match Breakdown
CHEMISTRY MATCH
92.9%
MECHANICAL MATCH
0%
OVERALL
62%
Specifications
Property AS/NZS 3679.1 300 ASTM A572 Grade 50
Standard AS/NZS 3679.1:2016 ASTM A572
Category Structural Steel Structural Steel
C (%) <=0.22 <=0.23
Mn (%) <=1.70 <=1.35
Si (%) <=0.50 <=0.40
P (%) <=0.040 <=0.040
S (%) <=0.040 <=0.050
Nb (%) Not specified <=0.05
V (%) Not specified <=0.15
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 3679.1 300 ASTM A572 Grade 50
Tensile Strength 440-600 MPa 450 MPa min
Yield Strength 300 MPa min 345 MPa min
Elongation 22% min 18% min
Hardness Not specified 137-187 HB
Typical Applications
AS/NZS 3679.1 300
Hot-rolled structural bars and sections for general structural framing
ASTM A572 Grade 50
High-strength low-alloy structural steel; buildings, bridges, transmission towers, construction equipment, general structural fabrication
Key Differences
Can AS/NZS 3679.1 300 Be Substituted With ASTM A572 Grade 50?
AS/NZS 3679.1 300 and ASTM A572 Grade 50 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
Forms & Sizes Available on M-EX
AS/NZS 3679.1 300
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2700–2700 mm (106.3–106.3 in)
ASTM A572 Grade 50
Plate → (4 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2800–4600 mm (110.24–181.1 in)
On M-EX Right Now
AS/NZS 3679.1 300
2 active listings and RFQs →
ASTM A572 Grade 50
4 active listings and RFQs →
Frequently Asked Questions
What is the difference between AS/NZS 3679.1 300 and ASTM A572 Grade 50?
ASTM A572 Grade 50 specifies Nb, V which are not specified for AS/NZS 3679.1 300.
Can AS/NZS 3679.1 300 be substituted with ASTM A572 Grade 50?
AS/NZS 3679.1 300 and ASTM A572 Grade 50 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.