AS1163 Cold Formed Structural Steel Hollow Section

AS1163 Australian/New Zealand Standard

Cold Formed Strucatural Steel Hollow Sections

CHS RHS

Professional Seamless Rectangle Steel Tube manufacturer is located in China, including Stainless Steel Rectangle Pipe,Rectangle Steel Tube,Astm Seamless Rectangle Tube, Oval steel tueb etc.

Material : C250 C250L0 C35D C350L0 C450 C450L0

Chemical composition(cast or product analysis ) (see note 2)% max

Notes

1. The use if sulphide modification manufacturing techniques for these grade 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:

CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15

5. Applies to niobium and Vanadium only, However, Niobium greater than 0.01% is not permitted.

6. Applies to niobium, Vanadium and titanium only, However, Vanadium greater than 0.10% is not permitted.

Coating type:

Zinc coating

Hot-dip galvanized coating standard AS/NZS4680 AS4750 or AS/NZS 4792

Type: Circular hollow section

External Dimensions(d0 d and b) ±1% with a minimum of ±0.5mm and a maximum of ±10mm

Thickness (t) For d0 ≤406.4mm:±10% For d0＞406.4mm ±10% with a max of ±2mm

Out of roundness (o) 2% for hollow section having a diameter to thickness ratio not exceeding 100( see note 1)

Straight (see note 3)0.2% of total length

Mass(m)per unit length :not less than 0.96 time the specified mass(note 4)on individual lengths

Type: Square and rectangle hollow sections

External Dimensions(d0 d and b)±1% with minimum of ±0.5mm

Thickness(t)±10%

Concavity /convexity (see note 2) Max 0.8% or 0.5mm,whichever is greater

Squareness of side 90°±1°

External corner profile see table 4

Twist(v)2+.5%mm/m length

Straightness See note 3: 0.15% of total length

Mass(m)per unit length :not less than 0.96 time the specified mass(note 4)on individual lengths

Notes:

1. Where the diameter to thickness ratio exceeds 100,the tolerance on out-of-roundness becomes the subject of agreement between the manufacturer and purchaser.

2. The tolerance on convexity and concavity is independent of the tolerance on external dimensions.

3. The straightness tolerance applies to straightness on any one plane.

4. In lieu of any other requirement, the specified mass is considered to be the nominal mass as noted in Clause 16

TESTING

Tensile test and impact test

Cold flattening test