AS/NZS 3678 Grade 350 Steel — Specifications & Listings

AS/NZS 3678

AS/NZS 3678 Grade 350 is an Australian and New Zealand standard high strength structural steel with 350 MPa minimum yield strength, equivalent to ASTM A572 Grade 50 and S355JR. It is widely used for bridges, heavy structures and mining equipment in Australia.

Category: Mild Steel

Grade Details

Grade	AS/NZS 3678 Grade 350
Standard	AS/NZS 3678
Description	AS/NZS 3678 Grade 350 is an Australian and New Zealand standard high strength structural steel with 350 MPa minimum yield strength, equivalent to ASTM A572 Grade 50 and S355JR. It is widely used for bridges, heavy structures and mining equipment in Australia.
Applications	bridges,heavy structures,mining equipment,cranes,offshore platforms,pressure vessels,structural components

Equivalent / Similar Grades

Grade	Standard	Region
ASTM A572 Grade 50	ASTM	USA
S355JR	EN 10025	Europe
IS 2062 E350A	IS 2062	India
Q345B	GB/T 1591	China
CSA G40.21 350WT	CSA G40.21	Canada

Chemical Composition (%)

C	Mn	P	S
<=0.22	<=1.70	<=0.040	<=0.040

Mechanical Properties

tensile_strength	480-620 MPa
yield_strength	360 MPa min
elongation	18-22 %

Typical Available Sizes

Plate	6-150 mm
Flat Bar	10-150 mm

Sizes are indicative. Contact seller for exact availability.

Active AS/NZS 3678 Grade 350 Listings on M-EX

No active AS/NZS 3678 Grade 350 listings at this time.