AS/NZS 3678 Grade 400 Steel - Specifications, Equivalents & Listings

Forms: Plate Category: Mild Steel

Grade Details

Grade	AS/NZS 3678:2016 Grade 400 / AS/NZS 3678 Grade 400
Standard	AS/NZS 3678:2016
Description	Australian and New Zealand standard high-strength structural steel plate and floorplate. 400 MPa minimum yield, good weldability.
Applications	Heavy structural fabrication, crane booms, mining machinery, earthmoving equipment, structural columns.

Equivalent / Similar Grades

Grade	Standard	Region	Live on M-EX
ASTM A572 Gr.60	ASTM	USA	0 listings, 2 RFQs →
EN S355JR	EN 10025	Europe	3 listings, 0 RFQs →
CSA G40.21 400W	CSA G40.21	Canada	2 listings, 0 RFQs →
IS 2062 E350A	IS 2062	India	6 listings, 7 RFQs →

Plate →

Balanced

Chemical Composition (%)

C	Mn	Si	P	S
max 0.2	max 1.6	max 0.55	max 0.03	max 0.03

Mechanical Properties

Yield Strength	400 MPa min (t<=12mm)
Tensile Strength	~520 MPa min (approx, equivalent to ASTM A572 Gr.60)

Active AS/NZS 3678:2016 Grade 400 / AS/NZS 3678 Grade 400 Listings on M-EX (For Sale)

AS/NZS 3678:2016 Grade 400 / AS/NZS 3678 Grade 400 Plate

3.600 MT

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AS/NZS 3678:2016 Grade 400 / AS/NZS 3678 Grade 400 Plate

4.200 MT

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No open buyer requirements for AS/NZS 3678:2016 Grade 400 / AS/NZS 3678 Grade 400 at this time.