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AS/NZS 3678 Grade 350WR vs ASTM A588

Related Material — 64.1% match based on chemical composition and mechanical property overlap.

AS/NZS 3678 Grade 350WR (AS/NZS 3678:2016) and ASTM A588 (ASTM A588) are both steel grades. Both fall under the Structural Steel (Corten / Weathering) category. AS/NZS 3678 Grade 350WR is typically used for weather-resistant (corrosion-resistant) structural steel; exposed bridge and structural applications requiring atmospheric corrosion resistance, while ASTM A588 is commonly used for used for bridges, railway wagons, transmission poles, architectural structures, containers, and outdoor construction.. AS/NZS 3678 Grade 350WR is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand, while ASTM A588 is defined under ASTM International, originating from United States.

As per chemical composition, AS/NZS 3678 Grade 350WR vs ASTM A588 is a 81.1% match. As per mechanical properties, the match is 30%. Combined, this makes them a related material overall at 64.1%.

Frequently Compared With AS/NZS 3678 Grade 350WR:
EN 10025-5 S355J0WP CSA G40.21 350A JIS G3114 SMA400 EN 10025-5 S355J2W EN 10025-5 S355J2WP CSA G40.21 50W ASTM A588 Grade A CSA G40.21 260WT ASTM A709 Grade HPS 70W CSA G40.21 480A ASTM A588 Grade B EN 10025-5 S235J2W
Match Breakdown
CHEMISTRY MATCH
81.1%
MECHANICAL MATCH
30%
OVERALL
64.1%
Specifications
Property AS/NZS 3678 Grade 350WR ASTM A588
Standard AS/NZS 3678:2016 ASTM A588
Category Structural Steel (Corten / Weathering) Structural Steel (Corten / Weathering)
C (%) <=0.20 0.19 max
Mn (%) <=1.70 0.80-1.25
Si (%) <=0.50 0.30-0.65
P (%) <=0.035 0.04 max
S (%) <=0.035 0.05 max
Cu (%) 0.25-0.55 0.20-0.40
Cr (%) 0.40-0.80 0.40-0.70
Ni (%) <=0.65 0.40 max
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 3678 Grade 350WR ASTM A588
Tensile Strength 480-620 MPa 485-630 MPa
Yield Strength 350 MPa min 345 MPa min
Elongation 20% min 18-21%
Hardness Not specified 140-190 HB
Typical Applications
AS/NZS 3678 Grade 350WR
Weather-resistant (corrosion-resistant) structural steel; exposed bridge and structural applications requiring atmospheric corrosion resistance
ASTM A588
Used for bridges, railway wagons, transmission poles, architectural structures, containers, and outdoor construction.
Can AS/NZS 3678 Grade 350WR Be Substituted With ASTM A588?
AS/NZS 3678 Grade 350WR and ASTM A588 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 3678 Grade 350WR
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–2800 mm (98.43–110.24 in)
ASTM A588
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2500–2700 mm (98.43–106.3 in)
On M-EX Right Now
AS/NZS 3678 Grade 350WR
2 active listings and RFQs →
ASTM A588
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between AS/NZS 3678 Grade 350WR and ASTM A588?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can AS/NZS 3678 Grade 350WR be substituted with ASTM A588?
AS/NZS 3678 Grade 350WR and ASTM A588 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.