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AS/NZS 1594 HA350 vs AS/NZS 3679.1 300

Related Material — 64.6% match based on chemical composition and mechanical property overlap.

AS/NZS 1594 HA350 (AS/NZS 1594:2025) and AS/NZS 3679.1 300 (AS/NZS 3679.1:2016) are both steel grades. Both fall under the Structural Steel category. AS/NZS 1594 HA350 is typically used for automotive structural parts, trailers, agricultural equipment, general fabrication, light structural sections., while AS/NZS 3679.1 300 is commonly used for hot-rolled structural bars and sections for general structural framing. AS/NZS 1594 HA350 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand, while AS/NZS 3679.1 300 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand.

As per chemical composition, AS/NZS 1594 HA350 vs AS/NZS 3679.1 300 is a 96.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 64.6%.

Frequently Compared With AS/NZS 1594 HA350:
AS/NZS 1595 C350 AS/NZS 1595 C450 IS 2062 E250B0 CSA G40.21 300W IS 2062 E250A AS/NZS 3679.1 350 ASTM A1008 SS Grade 80 ASTM A1008 SS Grade 50 CSA G40.21 400A ASTM A283C ASTM A572 Grade 50 ASTM A572 Gr.65
Match Breakdown
CHEMISTRY MATCH
96.9%
MECHANICAL MATCH
0%
OVERALL
64.6%
Specifications
Property AS/NZS 1594 HA350 AS/NZS 3679.1 300
Standard AS/NZS 1594:2025 AS/NZS 3679.1:2016
Category Structural Steel Structural Steel
C (%) max 0.2 <=0.22
Mn (%) max 1.6 <=1.70
Si (%) max 0.55 <=0.50
P (%) max 0.03 <=0.040
S (%) max 0.03 <=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 1594 HA350 AS/NZS 3679.1 300
Yield Strength 350 MPa min (AS/NZS 1594) 300 MPa min
Tensile Strength Not specified 440-600 MPa
Elongation Not specified 22% min
Typical Applications
AS/NZS 1594 HA350
Automotive structural parts, trailers, agricultural equipment, general fabrication, light structural sections.
AS/NZS 3679.1 300
Hot-rolled structural bars and sections for general structural framing
Can AS/NZS 1594 HA350 Be Substituted With AS/NZS 3679.1 300?
AS/NZS 1594 HA350 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
AS/NZS 1594 HA350
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 3100–3600 mm (122.05–141.73 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
AS/NZS 1594 HA350
2 active listings and RFQs →
AS/NZS 3679.1 300
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between AS/NZS 1594 HA350 and AS/NZS 3679.1 300?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can AS/NZS 1594 HA350 be substituted with AS/NZS 3679.1 300?
AS/NZS 1594 HA350 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.