Related Material — 64.8% match
based on chemical composition and mechanical property overlap.
AS/NZS 3678 Grade 400 (AS/NZS 3678:2016) and ASTM A1008 SS Grade 50 (ASTM A1008) are both steel grades.
Both fall under the Structural Steel category.
AS/NZS 3678 Grade 400 is typically used for heavy structural fabrication, crane booms, mining machinery, earthmoving equipment, structural columns., while ASTM A1008 SS Grade 50 is commonly used for cold-rolled high-strength structural steel sheet; automotive structural components, cold-formed parts requiring moderate strength.
AS/NZS 3678 Grade 400 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand, while ASTM A1008 SS Grade 50 is defined under ASTM International, originating from United States.
As per chemical composition, AS/NZS 3678 Grade 400 vs ASTM A1008 SS Grade 50 is a 97.2% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a related material overall at 64.8%.
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 400
ASTM A1008 SS Grade 50
Yield Strength
400 MPa min (t<=12mm)
340 MPa min
Tensile Strength
~520 MPa min (approx, equivalent to ASTM A572 Gr.60)
Can AS/NZS 3678 Grade 400 Be Substituted With ASTM A1008 SS Grade 50?
AS/NZS 3678 Grade 400 and ASTM A1008 SS Grade 50 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.
What is the difference between AS/NZS 3678 Grade 400 and ASTM A1008 SS Grade 50?
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 400 be substituted with ASTM A1008 SS Grade 50?
AS/NZS 3678 Grade 400 and ASTM A1008 SS Grade 50 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.