AS/NZS 1163 C250 L0
AS/NZS 1163 C250 L0
AS/NZS 1163 C250 L0 is an Australian standard that specifies the steel grade criteria for cold-formed structural steel hollow sections. The grade designation (C250) is based on the theoretical minimum yield strength of the steel (in MPa). The prefix ‘C’ is used before the value of the steel’s nominal yield strength to indicate that the section is cold-formed. AS 1163 is applicable exclusively to structural steel hollow sections that have been cold-formed. The suffix ‘L0’ denotes impact characteristics at 0°C, as defined by AS 1163.
PRODUCT FEATURES
Dimensions and Sizes of AS1163 C250 L0 Pipe
NPS | O. D. | Nominal Wall Thickness | |||||||||||||||
DN | Inch | mm | SCH5S | SCH10S | SCH10 | SCH20 | SCH30 | SCH40 | SCH60 | SCH80 | SCH100 | SCH120 | SCH140 | SCH160 | STD | XS | XXS |
50 | 2″ | 60.3 | 1.65 | 2.77 | – | – | – | 3.91 | – | 5.54 | – | – | – | 8.74 | 3.91 | 5.54 | 11.07 |
65 | 2-1/2″ | 76 | 2.11 | 3.05 | – | – | – | 5.16 | – | 7.01 | – | – | – | 9.53 | 5.16 | 7.01 | 14.02 |
80 | 3″ | 88.9 | 2.11 | 3.05 | – | – | – | 5.49 | – | 7.62 | – | – | – | 11.13 | 5.49 | 7.52 | 15.24 |
90 | 3-1/2″ | 101.6 | 2.11 | 3.05 | – | – | – | 5.74 | – | 8.08 | – | – | – | – | 5.74 | 8.08 | – |
100 | 4″ | 114.3 | 2.11 | 3.05 | – | – | – | 6.02 | – | 8.58 | – | 11.13 | – | 13.49 | 6.02 | 8.56 | 17.12 |
125 | 5″ | 141.3 | 2.77 | 3.4 | – | – | – | 6.55 | – | 9.53 | – | 12.7 | – | 15.88 | 6.55 | 9.53 | 18.05 |
150 | 6″ | 168.3 | 2.77 | 3.4 | – | – | – | 7.11 | – | 10.97 | – | 14.27 | – | 18.26 | 7.11 | 10.97 | 21.95 |
200 | 8″ | 219.1 | 2.77 | 3.76 | – | 6.35 | 7.04 | 8.18 | 10.31 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 8.18 | 12.7 | 22.23 |
250 | 10″ | 273.1 | 3.4 | 4.19 | – | 6.35 | 7.8 | 9.27 | 12.7 | 15.09 | 18.26 | 21.44 | 25.4 | 28.58 | 9.27 | 12.7 | 25.4 |
300 | 12″ | 323.9 | 3.96 | 4.57 | – | 6.35 | 8.38 | 10.31 | 14.27 | 17.48 | 21.44 | 25.4 | 28.58 | 33.32 | 9.53 | 12.7 | 25.4 |
350 | 14″ | 355.5 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | 11.13 | 15.09 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | 9.53 | 12.7 | – |
400 | 16″ | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | 12.7 | 16.66 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | 9.53 | 12.7 | – |
450 | 18″ | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | 14.27 | 19.05 | 23.83 | 39.36 | 34.93 | 39.67 | 45.24 | – | – | – |
500 | 20″ | 508 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 15.09 | 20.62 | 26.19 | 32.54 | 38.1 | 44.45 | 50.01 | – | – | – |
550 | 22″ | 558.8 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | – | 22.23 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | – | – | – |
600 | 24″ | 609.6 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | 17.48 | 24.61 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | – | – | – |
Chemical Composition of AS 1163 C250 L0 Pipes
Grades | Chemical Composition of AS 1163 C250 L0materials (Cast or product analysis) % max. | ||||||||||
C | Si | Mn | P | S | Cr | Mo | Al | Ti | Micro-alloying elements | CE | |
C250 L0 | 0.12 | 0.05 | 0.50 | 0.03 | 0.03 | 0.15 | 0.10 | 0.10 | 0.04 | 0.03 | 0.25 |
Tensile Test Requirements of AS 1163 C250 L0 Pipes
Grade | Minimum yield strength MPa | Minimum tensile strength MPa | Minimum elongation % | |||||
Circular hollow sections do/t | Rectangular hollow sections b/t, d/t | |||||||
~15 | >15 ~30 | >30 | ~15 | >15 ~30 | >30 | |||
C250 L0 | 250 | 320 | 18 | 20 | 22 | 14 | 16 | 18 |
NOTE: These limitations only apply to the face on which the tensile test is conducted. That is, whether the face the test specimen is cut from determines whether the b/t or d/t ratio is used for RHS. For SHS, there is only one ratio (as b = d).
Shape and Weight Tolerances of AS 1163 C250 L0 Pipes
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 (Check Note 1) | — |
Concavity/convexity (Check Note 2) | — | Max. 0.8% or 0.5 mm, whichever is greater |
Squareness of sides | — | 90°±1° |
External corner profile | — | Check Table 5 |
Twist (v) | — | 2 mm + 0.5 mm/m length |
Straightness (Check 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 | |
NOTES:
- When the diameter to thickness ratio hits 100, the manufacturer and consumer must agree on an out-of-roundness tolerance.
- External dimension tolerances have no bearing on convexity and concavity tolerances.
- Straightness in any one plane is covered by the straightness tolerance.
- The specified mass is taken as the nominal mass in the absence of any other condition.
Length Tolerances of AS 1163 C250 L0 Pipes
Type of length | Range mm | Tolerance |
Random length | 4000 to 16000 with a range of 2000 per order item | 10% of the sections delivered may be less than the minimum for the ordered range, but not less than 75% of the minimum |
Mill length (or “unspecified”) | All | +100 mm –0mm |
Precision length | <6000 | +5 mm –0mm |
6000 ~ 10000 | +15 mm –0mm | |
>10000 | +5 mm, + 1 mm/m –0mm |
NOTE: The inquiry and order must specify the type of length desired as well as the length or length range, as applicable. Alternatively, length tolerances must be provided when the order is placed.
AS/NZS 1163 C250 L0 and API 5L GR. B Dual Specs Pipes
Dual-spec pipes, such as those manufactured to AS/NZS 1163 C250 L0 / API 5L Gr. B requirements are in high demand. We conduct a number of mechanical/chemical tests to demonstrate conformance to both materials’ requirements. Both API 5L and AS/NZS 1163 specify distinct test techniques for determining compliance with tensile and fracture toughness requirements. Additionally, hydrostatic pressure testing and non-destructive weld inspection are conducted to verify structural and pressure integrity.
– Properties Comparison
Standard | API 5L | AS/NZS 1163 |
Grade | B | C250 L0 |
Yield Strength (MPa) | 245 | 250 |
Tensile Strength (MPa) | 415 | 320 |
Comments | Longitudinal Test Direction ＜ 219.1mm O.D. Transverse Test Direction ≥ 219.1mm O.D. | Longitudinal Test Direction Aged for 15 mins at 150~200℃ |
– Tolerances Comparison
Specifications | API 5L | AS/NZS 1163 | |
Dimensional Tolerances | Thickness | ≤ 5.0mm ± 0.5mm | ± 10% |
5.0 ~ 15.0mm ± 10% | |||
≥ 15.0mm ± 1.5mm | |||
Straightness | L/500 | L/500 | |
Bevel Angle | 30°（+5°, -0°） | Not Specified | |
Bevel Root Face | 1.6mm ± 0.8mm | ||
End Squareness | 16.mm max | ||
Linear Mass | 0.02466t(D-t) （+10%，-3.5%） | 0.02466t(D-t) （+4%，-0%） | |
