Name: China AS/NZS 1163 HOLLOW SECTIONS Manufacturers, Suppliers and Factory - Brisk Steel
Brand: Brisk Steel
SKU: 264642738

Tianjin Brisk Metalwork Co., Ltd. is one of the leading manufacturers and suppliers of as/nzs 1163 hollow sections in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy bulk durable as/nzs 1163 hollow sections from our factory.

BRISK STEEL can produce hollow section(CHS/RHS/SHS) acc to AS/NZS 1163

Chemical Requirements of AS/NZS 1163

When it comes to the chemical composition of our AS/NZS 1163 steel hollow sections, we adhere to stringent guidelines to ensure maximum strength and durability. Each element, from carbon to manganese, is carefully balanced to provide you with a product that resists corrosion, withstands high pressures, and maintains structural integrity under various conditions. By choosing our steel hollow sections, you benefit from a product that meets all chemical requirements, giving you the confidence to proceed with your most ambitious projects.

Grades (see Note 1)	Chemical Composition (cast or product analysis) (see Note 2) % max.
Grades (see Note 1)	C	Si	Mn	P	S	Cr	Mo	Al (see Note 3)	Ti	Micro-alloying elements	CE (see Note 4)
C250, C250L0	0.12	0.05	0.50	0.03	0.03	0.15	0.10	0.10	0.04	0.03 (see Note 5)	0.25
C350, C350L0	0.20	0.25	1.60	0.03	0.03	0.30	0.10	0.10	0.04	0.15 (see Note 6)	0.43
C450, C450L0	0.20	0.25 (see Note 7)	1.70	0.03	0.03	0.30	0.35	0.10	0.04	0.15 (see Note 6)	0.43
NOTES: 1 The use of sulphide modification manufacturing techniques for these grades is permitted . 2 The following elements may be present to the limits stated: (a) Copper 0 .25% . (b) Nickel 0 .25% . 3 Limits specified are for soluble or total aluminium . 4 Carbon equivalent (CE) is calculated from the following equation: 5 Applies to niobium and vanadium only . However, niobium greater than 0.010% is not permitted. 6 Applies to niobium, vanadium and titanium only . However, vanadium greater than 0 . 10% is not permitted . 7 For circular hollow sections (CHS), the silicon limit shall be 0.45.

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Mechanical Requirements of AS/NZS 1163

Mechanical properties are at the heart of any structural material, and our AS/NZS 1163 steel hollow sections are no exception. From tensile strength to yield strength, each mechanical attribute is optimized to offer you unparalleled structural integrity. Whether your project involves heavy loads or dynamic forces, our steel hollow sections are engineered to withstand the most challenging conditions. With us, you get a product that not only meets but exceeds mechanical requirements, ensuring your projects stand strong for years to come.

TENSILE TEST REQUIREMENTS
Grade	Minimum Yield StrengthMPa	Minimum Tensile StrengthMPa	Minimum Elongation as a Proportion of The Gauge Length of 5.65√So (see Note) %
			Circular Hollow Sections do/t			Rectangular Hollow Sections b/t, d/t
			≤15	>15≤ 30	>30	≤15	>15 ≤30	>30
C250, C250L0	250	320	18	20	22	14	16	18
C350, C350L0	350	430	16	18	20	12	14	16
C450, C450L0	450	500	12	14	16	10	12	14
NOTE：These limits apply to the face from which the tensile test is taken. That is, for RHS, the use of b/t or d/t ratio is dependent on which face the test specimen is cut from. For SHS, there is only one ratio (as b = d).

CHARPY V-NOTCH IMPACT TEST REQUIREMENTS
Grade	Test temperature °C	Minimum absorbed energy, J
		Size of test piece
		10 mm × 10 mm		10 mm × 7.5 mm		10 mm × 5 mm
		Average of 3 tests	Individual test	Average of 3 tests	Individual test	Average of 3 tests	Individual test
C250L0 C350L0 C450L0	0	27	20	22	16	18	13

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Steel Grades of AS/NZS 1163

Choosing the right steel grade is crucial for the success of your project, and our AS/NZS 1163 steel hollow sections offer a range of options. From C250 to C450, each grade is designed to meet specific structural needs. The "L0" designation indicates that the steel meets the 0 impact test requirement, providing additional assurance of durability. With us, you have the freedom to select the steel grade that best suits your project's demands, ensuring optimal performance and longevity.

C250

C250 L0

C350

C350 L0

C450

C450 L0

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Production Tolerance ofAS/NZS 1163

TOLERANCES FOR SHAPE AND MASS
Characteristic	Circular hollow sections	Square and rectangular hollow sections
External dimensions (do, d and b)	±1%, with a minimum of ±0.5 mm and a maximum of ±10 mm	±1%, with minimum of ±0.5 mm
Thickness (t)	For do £ 406.4 mm: ±10% For do > 406.4 mm: ±10% with a max of ±2 mm	±10%
Out-of-roundness (o)	±2% for hollow sections having a diameter to thickness ratio not exceeding 100 (see Note 1)	–
Concavity/convexity (see Note 2)	–	Max. 0.8% or 0.5 mm, whichever is greater
Squareness of sides	–	90°±1°
External corner profile		See Table 5
Twist (v)	–	2 mm + 0.5 mm/m length
Straightness (see Note 3)	0.20% of total length	0.15% of total length
Mass (m) per unit length	Not less than 0.96 times the specified mass (Note 4) on individual lengths

TOLERANCES ON LENGTH (see Note)
Type of length	Range mm	Tolerance
Random length	4000 to 16 000 with a range of 2000 per order item	10% of sections supplied may be below the minimum for the ordered range but not less than 75% of the minimum
Mill (or 'unspecified') length	All	+100 mm –0
Precision length	<6000	+5 mm –0
	³6000 £10 000	+15 mm –0
	>10 000	+5 mm + 1 mm/m –0
NOTE: The enquiry and order shall indicate the type of length required and the length or length range, as appropriate. Alternatively, length tolerances shall be specified at the time of order.