457 CHS — Sizes, Dimensions & Properties

7 sizes in the 457 serial size group. All dimensions in mm, section properties in cm units.

Designation	Mass (kg/m)	D (mm)	t (mm)	A (cm2)	I (cm4)	Z (cm3)	S (cm3)	r (cm)
457.0x6.0	66.7	457	6	85	21,600	946	1,220	15.9
457.0x8.0	88.6	457	8	113	28,400	1,250	1,610	15.9
457.0x10.0	110	457	10	140	35,100	1,540	2,000	15.8
457.0x12.0	132	457	12	168	41,600	1,820	2,380	15.7
457.0x12.5	137	457	12.5	175	43,100	1,890	2,470	15.7
457.0x14.2	155	457	14.2	198	48,500	2,120	2,790	15.7
457.0x16.0	174	457	16	222	54,000	2,360	3,110	15.6

457.0x6.0 CHS

Designation: 457.0x6.0
Outside Diameter (D): 457 mm
Wall Thickness (t): 6 mm
Mass per Metre: 66.7 kg/m
Cross-Sectional Area: 85 cm2
Second Moment of Area I: 21,600 cm4
Elastic Modulus Z: 946 cm3
Plastic Modulus S: 1,220 cm3
Radius of Gyration r: 15.9 cm
Torsional Constant (It): 43,200 cm4
Surface Area per Metre: 1.44 m2/m
Surface Area per Tonne: 21.5 m2/t

457.0x8.0 CHS

Designation: 457.0x8.0
Outside Diameter (D): 457 mm
Wall Thickness (t): 8 mm
Mass per Metre: 88.6 kg/m
Cross-Sectional Area: 113 cm2
Second Moment of Area I: 28,400 cm4
Elastic Modulus Z: 1,250 cm3
Plastic Modulus S: 1,610 cm3
Radius of Gyration r: 15.9 cm
Torsional Constant (It): 56,900 cm4
Surface Area per Metre: 1.44 m2/m
Surface Area per Tonne: 16.2 m2/t

457.0x10.0 CHS

Designation: 457.0x10.0
Outside Diameter (D): 457 mm
Wall Thickness (t): 10 mm
Mass per Metre: 110 kg/m
Cross-Sectional Area: 140 cm2
Second Moment of Area I: 35,100 cm4
Elastic Modulus Z: 1,540 cm3
Plastic Modulus S: 2,000 cm3
Radius of Gyration r: 15.8 cm
Torsional Constant (It): 70,200 cm4
Surface Area per Metre: 1.44 m2/m
Surface Area per Tonne: 13 m2/t

457.0x12.0 CHS

Designation: 457.0x12.0
Outside Diameter (D): 457 mm
Wall Thickness (t): 12 mm
Mass per Metre: 132 kg/m
Cross-Sectional Area: 168 cm2
Second Moment of Area I: 41,600 cm4
Elastic Modulus Z: 1,820 cm3
Plastic Modulus S: 2,380 cm3
Radius of Gyration r: 15.7 cm
Torsional Constant (It): 83,100 cm4
Surface Area per Metre: 1.44 m2/m
Surface Area per Tonne: 10.9 m2/t

457.0x12.5 CHS

Designation: 457.0x12.5
Outside Diameter (D): 457 mm
Wall Thickness (t): 12.5 mm
Mass per Metre: 137 kg/m
Cross-Sectional Area: 175 cm2
Second Moment of Area I: 43,100 cm4
Elastic Modulus Z: 1,890 cm3
Plastic Modulus S: 2,470 cm3
Radius of Gyration r: 15.7 cm
Torsional Constant (It): 86,300 cm4
Surface Area per Metre: 1.44 m2/m
Surface Area per Tonne: 10.5 m2/t

457.0x14.2 CHS

Designation: 457.0x14.2
Outside Diameter (D): 457 mm
Wall Thickness (t): 14.2 mm
Mass per Metre: 155 kg/m
Cross-Sectional Area: 198 cm2
Second Moment of Area I: 48,500 cm4
Elastic Modulus Z: 2,120 cm3
Plastic Modulus S: 2,790 cm3
Radius of Gyration r: 15.7 cm
Torsional Constant (It): 96,900 cm4
Surface Area per Metre: 1.44 m2/m
Surface Area per Tonne: 9.26 m2/t

457.0x16.0 CHS

Designation: 457.0x16.0
Outside Diameter (D): 457 mm
Wall Thickness (t): 16 mm
Mass per Metre: 174 kg/m
Cross-Sectional Area: 222 cm2
Second Moment of Area I: 54,000 cm4
Elastic Modulus Z: 2,360 cm3
Plastic Modulus S: 3,110 cm3
Radius of Gyration r: 15.6 cm
Torsional Constant (It): 108,000 cm4
Surface Area per Metre: 1.44 m2/m
Surface Area per Tonne: 8.25 m2/t

457 CHS — Overview

The 457 serial size group contains 7 sections, ranging from 174 kg/m to 66.7 kg/m. All sections in this group share the same nominal depth and width but differ in web and flange thickness, which affects the weight and structural capacity.

Section properties are sourced from the Tata Steel Blue Book / SCI P363. For structural design to BS EN 1993-1-1 (Eurocode 3), use these properties with the appropriate partial factors from the UK National Annex.

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Section properties from Tata Steel Blue Book / SCI P363 / BS 4-1:2005.