Circular Hollow SECTION

Circular hollow sections (CHS) are structural members with a circular cross-section. CHS are the strongest and most efficient type of hollow section, and are often used in applications where high strength and stiffness are required, such as columns, beams, and struts.

CHS are available in a wide range of sizes, from small diameter tubes with wall thicknesses of a few millimeters to large diameter tubes with wall thicknesses of several centimeters. CHS can also be manufactured to different lengths, depending on the specific application.

STEEL TUBE FOR STRUCTURAL PURPOSES

TOLERANCE

A) OUT SIDE DIAMETER :-

1. UPTO & INCLUDING 48.3 MM = +0.4 MM/ -0.8 MM

2. OVER 48.3 MM = ±1.0 %

B) THICKNESS (FOR ALL SIZES) :-

1. WELDED TUBES : ±10%

C) WEIGHT : -

1. SINGLE TUBE : ±10 %

2. 10 TONNE LOTS : ±7.5%

TENSILE PROPERTIES

S.NO. GRADE Y.S (Min.)MPa T.S (Min.)MPa ELONGATION%
1 Yst 210 210 330 20
2 Yst 240 240 410 17
3 Yst 310 310 450 14
4 Yst 355 355 490 10

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