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AS/NZS 3679.1 350 vs AS/NZS 1594 HA350

Strong Match — 98% match based on chemical composition and mechanical property overlap.

AS/NZS 3679.1 350 (AS/NZS 3679.1:2016) and AS/NZS 1594 HA350 (AS/NZS 1594:2025) are both steel grades. Both fall under the Structural Steel category. AS/NZS 3679.1 350 is typically used for hot-rolled structural bars and sections for primary structural beams, columns, and framing, while AS/NZS 1594 HA350 is commonly used for automotive structural parts, trailers, agricultural equipment, general fabrication, light structural sections.. AS/NZS 3679.1 350 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand, while AS/NZS 1594 HA350 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand.

As per chemical composition, AS/NZS 3679.1 350 vs AS/NZS 1594 HA350 is a 96.9% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 98%.

Frequently Compared With AS/NZS 3679.1 350:
CSA G40.21 480W CSA G40.21 350W CSA G40.21 400W AS/NZS 1595 C450 ASTM A1008 SS Grade 50 IS 2062 E250B0 ASTM A1008 SS Grade 80 AS/NZS 1595 C350 ASTM A572 Grade 50 IS 2062 E250A ASTM A283C ASTM A572 Gr.65
Match Breakdown
CHEMISTRY MATCH
96.9%
MECHANICAL MATCH
100%
OVERALL
98%
Specifications
Property AS/NZS 3679.1 350 AS/NZS 1594 HA350
Standard AS/NZS 3679.1:2016 AS/NZS 1594:2025
Category Structural Steel Structural Steel
C (%) <=0.22 max 0.2
Mn (%) <=1.70 max 1.6
Si (%) <=0.50 max 0.55
P (%) <=0.040 max 0.03
S (%) <=0.040 max 0.03
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 3679.1 350 AS/NZS 1594 HA350
Tensile Strength 480-640 MPa Not specified
Yield Strength 350 MPa min 350 MPa min (AS/NZS 1594)
Elongation 20% min Not specified
Typical Applications
AS/NZS 3679.1 350
Hot-rolled structural bars and sections for primary structural beams, columns, and framing
AS/NZS 1594 HA350
Automotive structural parts, trailers, agricultural equipment, general fabrication, light structural sections.
Can AS/NZS 3679.1 350 Be Substituted With AS/NZS 1594 HA350?
AS/NZS 3679.1 350 and AS/NZS 1594 HA350 overlap closely enough on chemistry and mechanical properties that AS/NZS 1594 HA350 is often considered as a substitute for AS/NZS 3679.1 350 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 3679.1 350
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2900–3200 mm (114.17–125.98 in)
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)
On M-EX Right Now
AS/NZS 3679.1 350
2 active listings and RFQs →
AS/NZS 1594 HA350
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between AS/NZS 3679.1 350 and AS/NZS 1594 HA350?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can AS/NZS 3679.1 350 be substituted with AS/NZS 1594 HA350?
AS/NZS 3679.1 350 and AS/NZS 1594 HA350 overlap closely enough on chemistry and mechanical properties that AS/NZS 1594 HA350 is often considered as a substitute for AS/NZS 3679.1 350 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.