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AS/NZS 3679.1 300 vs AS/NZS 3678 Grade 300

Strong Match — 96.7% match based on chemical composition and mechanical property overlap.

AS/NZS 3679.1 300 (AS/NZS 3679.1:2016) and AS/NZS 3678 Grade 300 (AS/NZS 3678:2016) 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 AS/NZS 3678 Grade 300 is commonly used for general fabrication, structural members, high-rise buildings, bridges, storage tanks. AS/NZS 3679.1 300 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand, while AS/NZS 3678 Grade 300 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand.

As per chemical composition, AS/NZS 3679.1 300 vs AS/NZS 3678 Grade 300 is a 100% match. As per mechanical properties, the match is 90.2%. Combined, this makes them a strong match overall at 96.7%.

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 Grade 50 ASTM A572 Gr.65 CSA G40.21 260W CSA G40.21 300W
Match Breakdown
CHEMISTRY MATCH
100%
MECHANICAL MATCH
90.2%
OVERALL
96.7%
Specifications
Property AS/NZS 3679.1 300 AS/NZS 3678 Grade 300
Standard AS/NZS 3679.1:2016 AS/NZS 3678:2016
Category Structural Steel Structural Steel
C (%) <=0.22 <=0.22
Mn (%) <=1.70 <=1.70
Si (%) <=0.50 <=0.50
P (%) <=0.040 <=0.040
S (%) <=0.040 <=0.040
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 AS/NZS 3678 Grade 300
Tensile Strength 440-600 MPa 430-560 MPa
Yield Strength 300 MPa min 300 MPa min
Elongation 22% min 22% min
Typical Applications
AS/NZS 3679.1 300
Hot-rolled structural bars and sections for general structural framing
AS/NZS 3678 Grade 300
General fabrication, structural members, high-rise buildings, bridges, storage tanks
Can AS/NZS 3679.1 300 Be Substituted With AS/NZS 3678 Grade 300?
AS/NZS 3679.1 300 and AS/NZS 3678 Grade 300 overlap closely enough on chemistry and mechanical properties that AS/NZS 3678 Grade 300 is often considered as a substitute for AS/NZS 3679.1 300 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 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)
AS/NZS 3678 Grade 300
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–3100 mm (98.43–122.05 in)
On M-EX Right Now
AS/NZS 3679.1 300
2 active listings and RFQs →
AS/NZS 3678 Grade 300
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between AS/NZS 3679.1 300 and AS/NZS 3678 Grade 300?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can AS/NZS 3679.1 300 be substituted with AS/NZS 3678 Grade 300?
AS/NZS 3679.1 300 and AS/NZS 3678 Grade 300 overlap closely enough on chemistry and mechanical properties that AS/NZS 3678 Grade 300 is often considered as a substitute for AS/NZS 3679.1 300 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.