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ASTM A572 Grade 50 vs AS/NZS 3679.1 300

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

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

As per chemical composition, ASTM A572 Grade 50 vs AS/NZS 3679.1 300 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 ASTM A572 Grade 50:
ASTM A572 Gr.65 ASTM A283C GOST 19281 09G2S CSA G40.21 260W CSA G40.21 300W AS/NZS 3679.1 350 CSA G40.21 480W CSA G40.21 400W CSA G40.21 400A CSA G40.21 350W ASTM A1008 SS Grade 50 ASTM A1008 SS Grade 80
Match Breakdown
CHEMISTRY MATCH
92.9%
MECHANICAL MATCH
0%
OVERALL
62%
Specifications
Property ASTM A572 Grade 50 AS/NZS 3679.1 300
Standard ASTM A572 AS/NZS 3679.1:2016
Category Structural Steel Structural Steel
C (%) <=0.23 <=0.22
Mn (%) <=1.35 <=1.70
Si (%) <=0.40 <=0.50
P (%) <=0.040 <=0.040
S (%) <=0.050 <=0.040
Nb (%) <=0.05 Not specified
V (%) <=0.15 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 ASTM A572 Grade 50 AS/NZS 3679.1 300
Tensile Strength 450 MPa min 440-600 MPa
Yield Strength 345 MPa min 300 MPa min
Elongation 18% min 22% min
Hardness 137-187 HB Not specified
Typical Applications
ASTM A572 Grade 50
High-strength low-alloy structural steel; buildings, bridges, transmission towers, construction equipment, general structural fabrication
AS/NZS 3679.1 300
Hot-rolled structural bars and sections for general structural framing
Key Differences
Can ASTM A572 Grade 50 Be Substituted With AS/NZS 3679.1 300?
ASTM A572 Grade 50 and AS/NZS 3679.1 300 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
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)
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)
On M-EX Right Now
ASTM A572 Grade 50
4 active listings and RFQs →
AS/NZS 3679.1 300
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A572 Grade 50 and AS/NZS 3679.1 300?
ASTM A572 Grade 50 specifies Nb, V which are not specified for AS/NZS 3679.1 300.
Can ASTM A572 Grade 50 be substituted with AS/NZS 3679.1 300?
ASTM A572 Grade 50 and AS/NZS 3679.1 300 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.