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Size Guide & Specifications

Complete size chart for all products — Round Pipe ½"–3½", Square Pipe up to 8"×8", CR & HR Sheets.

Round Pipe (CR / HR)

Round Pipe: ½" to 3½"

Cold Rolled (CR) for small–medium sizes · Hot Rolled (HR) for larger structural sizes

Size (Inch)Approx (mm)Min Wall (mm)Max Wall (mm)GradeCommon Use
½"12.70.301.60CRCFurniture legs, ceiling fan downrods
⅝"15.90.322.00CRCCycle frames, light furniture
¾"19.10.282.00CRC / HRCharpai frames, railings, grills
⅞"22.20.502.00CRCGate frames, soft bending
1"25.40.282.00CRC / HRGreenhouses, staircases, racks
1⅛"28.60.701.60CRCMedium frames, furniture
1¼"31.80.702.00CRC / HRGreenhouse tunnels, fencing
1⅜"34.91.202.00CRCHeavy frames, stands
1½"38.10.362.00CRC / HRMain gates, scaffolding, stair rails
1¾"44.51.201.60CRCHeavy frames, line work
2"50.80.902.00CRC / HRConstruction, crash cushions
2½"63.50.902.00HRStructural columns, industrial
3"76.21.202.50HRUrban parapets, bridge rails
3½"88.91.202.50HRElectricity poles, large columns
Square & Rectangular Pipe (CR / HR)

Square Pipe: ½"×½" to 8"×8"

CR for small-medium sections · HR for large structural columns up to 8"×8"

Section SizeMin Wall (mm)Max Wall (mm)GradeCommon Use
½" × ½"0.501.60CRCDecorative grills, small furniture
¾" × ¾"0.602.00CRCWindow grills, furniture frames
1" × 1"0.602.00CRCGates, grills, chair frames, racks
1¼" × 1¼"0.602.00CRCGates, door frames, furniture
1½" × 1½"0.602.00CRCMain gate sections, cycle racks
1½" × 2" (Rect.)0.702.00CRCRectangular frames
2" × 2" (50×50)0.703.00CRC / HRGreenhouse frames, structural
2" × 3" (Rect.)0.902.50CRC / HRUrban parapets, large frames
2" × 4" (Rect.)1.203.00HRHeavy rectangular sections
40×60mm (Rect.)1.202.50HRStructural rectangular
40×80mm (Rect.)1.202.50HRLarge rectangular structural
3" × 3" (76×76)1.604.00HRHeavy columns, stair frames
4" × 4" (101×101)2.005.00HRMain structural columns
4" × 8" (Rect.)2.005.00HRLarge rectangular columns
5" × 5"2.505.00HRHeavy industrial structures
6" × 6"3.006.00HRBridge parapets, heavy columns
8" × 8"3.006.00HRLarge structural columns, bridges
Steel Sheets (CR / HR)

Sheet Thickness Guide

CR (Cold Rolled) for smooth precision · HR (Hot Rolled) for heavy structural plates

ThicknessGradeApplications
0.40 mmCRLight cladding, interior panels, decorative
0.50 mmCRAppliance panels, light enclosures
0.60 mmCRAuto interior panels, light body work
0.70 mmCRGeneral fabrication, auto body panels
0.80 mmCRAutomotive exterior, cabinets
0.90 mmCRVehicle body panels, machinery covers
1.00 mmCR / HRIndustrial equipment panels
1.20 mmCR / HRHeavy auto body, truck panels
1.50 mmHRBus & truck body panels, heavy fabrication
2.00 mmHRHeavy industrial, structural panels
2.50 mmHRStructural plates, machine bases
3.00 mmHRIndustrial flooring, heavy plates
4.00 mmHRHeavy platforms, machine bases
5.00 mm+HRBridge components, heavy engineering
Black Pipe (Auto Industry)

Black Pipe: 2mm+ Wall

ERW black steel pipe for auto industry, bus/truck bodies and heavy fabrication

DiameterWall ThicknessPrimary Use
¾" (19mm)2.00mm – 2.50mmLight auto frames, support brackets
1" (25mm)2.00mm – 3.00mmAuto body supports, fabrication jigs
1½" (38mm)2.00mm – 3.50mmBus body frames, vehicle structural
2" (50mm)2.00mm – 4.00mmMain chassis rails, heavy frames
2½" (63mm)2.50mm – 4.00mmHeavy truck chassis, industrial
3" (76mm)2.50mm – 5.00mmHeavy industrial structures
4" (101mm)3.00mm – 6.00mmLarge structural vehicle supports
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