AS/NZS 1163 C450

AS/NZS 1163 C450

Type of hollow section: AS/NZ 1163 C450 is made to the Australian standard for cold-formed structural steel hollow sections with a tensile test requirement. It is made to this standard. In grade C450 L0, there is a Charpy v-notch impact test that must be done. In grade C450, there is not.

When you make hollow sections of cold-formed steel, AS1163 C450 tells you what kind of steel you should use. When you figure out the grade of the metal, you use the steel’s nominal minimum yield strength (C450) (in MPa). When the value of the nominal yield strength of steel is written, “C” is the first letter. This shows us that this part has been cold formed. When you read AS 1163, you only have to follow this rule if you use cold-formed structural steel hollow sections.

PRODUCT FEATURES

Dimensions and Sizes of AS/NZS 1163 C450 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/NZS 1163 C450 Pipes

Grades

Chemical Composition of AS/NZS 1163 C450 materials

(Cast or product analysis)

% max.

C

Si

Mn

P

S

Cr

Mo

Al

Ti

Micro-alloying elements

CE

AS/NZS 1163 C450

0.20

0.25

1.70

0.03

0.03

0.30

0.35

0.10

0.04

0.15

0.43

Tensile Test Requirements of AS/NZS 1163 C450 Pipes

Grade

Minimum

yield

strength

 

MPa

Minimum tensile

strength

 

MPa

Minimum elongation

(Check Note)

%

Circular hollow sections

do/t

Rectangular hollow sections

b/t, d/t

~15

>15 ~30

>30

~15

>15 ~30

>30

AS/NZS 1163 C450

450

500

12

14

16

10

12

14

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/NZS 1163 C450 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:

  1. When the diameter to thickness ratio reaches 100, the producer and consumer must agree on the tolerance for out-of-roundness.
  2. Convexity and concavity tolerances are independent of external dimension tolerances.
  3. The straightness tolerance is applicable to straightness in any single plane.
  4. In the absence of any other condition, the indicated mass is regarded as the nominal mass.

Length Tolerances of AS/NZS 1163 C450 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 C450 / API 5L X52 Dual Specs Pipes

There is a lot of demand for dual-spec pipes, like AS/NZS 1163 C450 and API 5L X52 materials, which are in short supply. Mechanic and chemical tests are done to show that these materials meet these standards. API 5L and AS/NZS 1163 each have their own set of tests that must be done to make sure they meet their own tensile and fracture toughness standards. Hydrostatic pressure testing and non-destructive weld inspection are also done to find out how strong and safe the structure is.

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