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Alloy Steel Square steel tube, Mild Steel Square steel tube, Carbon Steel Square steel tube, Stainless Steel Square steel tube-CONTINENTAL STEEL CO.,LTD
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Steel Hollow Section
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Square steel pipe

Product Type:Stainless Steel Square Tube,Mild Steel Square Tube,galvanized Square steel pipe

Application:   Widely used in furniture,interior decoration, structure

Size: OD: 10*10-1000*1000mm

Standard & Grade: EN 10210:S235JRH,S355J2H,S355NH,S355J0HEN 10219:S235JRH,S355J2H,S355NH,S355J0H S355J2+N, IS 4923 / ASTM A500 ASTM A500:Gr.A,Gr.B,Gr.C / As Per Requirement

Surface Protection: Black (Self Coloured uncoated), Varnish/Oil Coating, Pre-Galvanized, Hot Dip Galvanized

Type : Seamless/ Welded / ERW

Packing : In bundles, Anticorrosion heat preservation, Varnish coating, Ends can be bevelled or square cut, End Capped Certification & supplementary test, Finishing & Identity Mark

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Introduction Specification Production process Inquiry

Introduction

Square hollow section is often contracted to SHS, and also was called structural square steel tubes, structural square tube, structural SHS, structural square hollow box section, structural square hollow section, cold formed steel square tube, and mild steel square tube which is a kind of structural hollow section. It is manufactured by custom steel strip or custom steel sheet through process of cold formed directly into square shape and then in high frequency welding process to finish.
Our factory can offer following steel grade and manufacturing standards for square hollow section, GB/T6725, GB/T6728, ASTM A500, EN10219, EN10210, JISG3466, EN10219, ASTMA36, AS/NZS/1163 or customize, available Steel Grade: SPA-H, SPHC, ASTM A500 grade A, ASTM A500 grade B, ASTM A500 grade C, Q235B, Q345B, Q345E, Q420, Q450, Q460, QSTE500TM, BC550, BS600MC, BS700MC, A36, SS400, S355J0H, S355J2H, S235JR or customize, in addition, our factory can also provide hot dipped galvanized square hollow section and hot dipped galvanized square steel tube which was widely used in machinery manufacturing, construction industry, metallurgical industry, agricultural, vehicles, agricultural greenhouses, automobile industry, railway, highway guardrail, container frame, furniture decoration and structural steel.

Hot dipped galvanized square hollow section, galvanized square steel tube,galvanized square steel hollow box section for your reference.

Cold Formed Square Hollow Section Specification
Standard : BS EN 10219 - Cold Formed Welded Structural Hollow Sections of Non-alloy and Fine Grain Steels
SHS (Square Hollow Sections) Sizes : 20*20mm-600*600mm
Wall Thickness : 0.5mm - 25mm
Length : 6000-14000 mm
Type : Seamless/ Welded / ERW
Dimensional Tolerances : Thickness : (All sizes +/- 10%)
Packing : In bundles, Anticorrosion heat preservation, Varnish coating, Ends can be bevelled or square cut, End Capped Certification & supplementary test, Finishing & Identity Mark
Available Grades : S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355J2+N, IS 4923 / ASTM A500 / As Per Requirement
Surface Protection: Black (Self Coloured uncoated), Varnish/Oil Coating, Pre-Galvanized, Hot Dip Galvanized

Hot Finish Square Hollow Section Specification
Standard : BS EN 10210 - Hot Finished Structural Hollow Sections of Non-alloy and Fine Grain Steels
Sizes : 20*20mm-600*600mm
Wall Thickness : 0.5mm - 25mm
Length : 6000-14000 mm
Type : Seamless/ Welded / ERW
Dimensional Tolerances : Thickness : (All sizes +/- 10%)
Packing : In bundles, Anticorrosion heat preservation, Varnish coating, Ends can be bevelled or square cut, End Capped Certification & supplementary test, Finishing & Identity Mark
Available Grades : S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355J2+N, IS 4923 / ASTM A500 / As Per Requirement
Surface Protection: Black (Self Coloured uncoated), Varnish/Oil Coating, Pre-Galvanized, Hot Dip Galvanized

SS Square Hollow Section Specification
Specifications : ASTM A554 / ASME SA554
Sizes : 20*20mm-400*400mm
Wall Thickness : 0.5mm - 25mm
Length : Up to 6 meters, custom cut lengths
Type : Seamless/ Welded / ERW
Packing : In bundles, Anticorrosion heat preservation, Varnish coating, Ends can be bevelled or square cut, End Capped Certification & supplementary test, Finishing & Identity Mark
Available Steel Grades : 304, 304L, 304H, 316, 316L, 316H, 316Ti, 321, 321H, 310S, 202, 409, 409L / As Per Requirement
Finish : 2B, No.1 Pickled Finish, No.4 finish, BA Finish, No.8 Mirror Finish, Electropolished Square Pipes
Delivery Condition: Bright Annealed, Polished or Annealed and Pickled

Specification

Size

Thickness
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(MM)

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 30X30

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38X38

    

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 40X40

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 50X50

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55X55

      

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 60X60

    

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65X65

    

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 70X70

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75x75

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86x86

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 90X90

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98x98

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600X600

                    

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Dimensional Tolerances

Dimensional Tolerances

Outside Diameter:

Twist:

Maximum twist per 3 feet of length

Largest outside dimension

Outside tolerance including convexity and concavity

Longest outside dimension

up to 2 1/2"

±.020"

2" to 2 1/2"inclusive

.062"

over 21/2" to 31/2" inclusive

±.025"

over 21/2" to 4" inclusive

.075"

over 31/2" to 51/2" inclusive

±.030"

over 4" to 6" inclusive

.087"

over 51/2"

±1%

over 6" to 8" inclusive

100"

Tolerances include allowance for convexity or concavity. For
rectangular sections, the tolerance calculated for the larger flat
dimension shall also apply to the smaller flat dimension. This
tolerance may be increased 50 percent when applied to the
smaller dimension, if the ratio of cross sectional dimension
is between 1.5 and 3, and 100 percent when the ratio exceeds 3.

over 8"

112"

Straightness:
Permissable variation shall be 1/8" times the number of feet of total length divided by 5:

.125" x (total length) ÷ 5

Wall Thickness:

Squareness of Sides:

Maximum allowable variation

±10%

Adjacent sides may deviate from 90° by a tolerance of plus or minus 2 degrees maximum.

(wall thickness is to be measured at the center of the flat, exclusive
of the weld area, and not at the corners)

Worner Radii:

Flash:

The radius of any outside corner shal not exceed three times
the specified wall thickness

Structural tubing usually is supplied flash-in. The height of the
flash will vary with the wall thickness of the tube.

 

 

ASTM A500 Cold Formed Welded and Seamless Carbon Steel Steel Structural Tubing in Round and Shapes


Grade Designation

Chemistry-Ladle Analysis

Carbon

Manganese

Phosporous

Sulfur

A501 (A36)

0.26% max

-

0.04% max

0.05% max

A500A

0.26% max

-

0.04% max

0.05% max

A500B

0.26% max

-

0.04% max

0.05% max

A500C

0.23% max

1.35% max

0.04% max

0.05% max

Copper, when copper steel is specified, 0.20% minimum.

Mechanical Properties

Grade Designation

Grade

Tensile Strength

Yield Strength Minimum

Elongation In 2 Inches Minimum

Condition

Minimum

A501 (A36)

Hot Formed

58,000 psi

36,000 psi

23%

A500A

Cold Formed

45,000 psi

39,000 psi

25%

A500B

Cold Formed

58,000 psi

46,000 psi

23%

A500C

Cold Formed

62,000 psi

50,000 psi

21%

​

Production process

If you have any inquiries and questions, please contact CONTINENTAL STEEL CO.,LTD. at any time. Thanks in advance. Welcome!

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Continental Steel Co.,Ltd(CSC) is a pioneering manufacturer, stockist, and supplier of steel pipe products.

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