C450 - AS /NZS 1163-2016(+A1 2017)

Grade	C450
Corresponding Standard	AS /NZS 1163-2016(+A1 2017) Cold-Formed Structural Steel Hollow Sections
Classification	Alloy Steel

C450 Chemical Element Composition Content (%)

Component	C	Si ^®	Mn	P	S	Cr	Ni ^*	Cu ^*	Mo	Ti	Al ^℗	More
Minimum Value	-	-	-	-	-	-	-	-	-	-	-	CE≤0.43
Maximum Value	0.2	0.25	1.7	0.03	0.03	0.3	0.25	0.25	0.35	0.04	0.1	CE≤0.43

℗ Limits specified are for soluble or total aluminium.

® For circular hollow sections (CHS), the silicon limit shall be 0.45.
◎ Micro-alloying elements ≤0.03. Applies to niobium, vanadium and titanium only. However, vanadium greater than 0.10% is not permitted.
* Possible elements.

C450 Mechanical Properties

diameter/thickness d/t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
d/t≤15	≥500	≥450	≥12① ≥10②
15＜d/t≤30	≥500	≥450	≥14① ≥12②
d/t＞30	≥500	≥450	≥16① ≥14②

C450 Corresponding Standards(Same grade name, different standards)

1	AS 1450-2007
	C450
2	AS /NZS 1163-2016(+A1 2017)
	C450

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!