AS 1163 C350
AS/NZS 1163 C350
AS/NZ 1163 C350 is a type of hollow section which is manufactured according to the Australian standard for cold-formed structural steel hollow sections with specific tensile test requirements. Different from grade C350 L0, there is no Charpy v-notch impact test requirement for grade C350.
AS1163 C350 is an Australian standard that says what kind of steel should be used to make hollow sections of cold-formed steel. The steel’s nominal minimum yield strength (C350) is used to figure out the grade (C350) of the metal (in MPa). When the value of the nominal yield strength of steel is written, it starts with “C.” This tells us that this section has been cold formed. In AS 1163, only the parts that are cold-formed structural steel hollow sections are covered by this rule.
PRODUCT FEATURES
Dimensions and Sizes of AS1163 C350 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 C350 Pipes
Grades | Chemical Composition of AS 1163 C350 materials (Cast or product analysis) % max. | ||||||||||
C | Si | Mn | P | S | Cr | Mo | Al | Ti | Micro-alloying elements | CE | |
C350 | 0.20 | 0.25 | 1.60 | 0.03 | 0.03 | 0.30 | 0.10 | 0.10 | 0.04 | 0.15 | 0.43 |
Tensile Test Requirements of AS 1163 C350 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 | |||
C350 | 350 | 430 | 16 | 18 | 20 | 12 | 14 | 16 |
NOTE: These restrictions apply to the face from which the tensile test is performed. That is, the usage of b/t or d/t ratio for RHS is determined by which face the test specimen is cut from. There is only one ratio for SHS (as b = d).
Shape and Weight Tolerances of AS 1163 C350 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 reaches 100, the producer and consumer must agree on the tolerance for out-of-roundness.
- Convexity and concavity tolerances are independent of external dimension tolerances.
- The straightness tolerance is applicable to straightness in any single plane.
- In the absence of any other condition, the indicated mass is regarded as the nominal mass.
Length Tolerances of AS 1163 C350 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.
AS1163 C350 / API 5L X42 Dual Specs Pipes
There is a significant demand for dual-spec pipes, such as AS1163 C350 / API 5L X42 materials, which are available in limited supply. Several mechanical and chemical tests are performed to show compliance with these material specifications. API 5L and AS/NZS 1163 each require their own test techniques in order to guarantee compliance with their respective tensile and fracture toughness standards. Hydrostatic pressure testing and non-destructive weld inspection are also performed in order to determine the structural and pressure integrity of the structure.
