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Merchant bar tables

Steel Bar Sizes

Use this page for merchant bar size searches where straps, packers, brackets, rods, pins, spacers, stops, and small fabricated details need quick weight and size comparison.

2,037

section rows

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focus families

3

regional sources

Section data tables

Structural steel section selector

Select a section category, choose the section type, then filter dimensions, section properties, and material strength data in one place.

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size rows

26

material grades

Flat Bars

Rectangular solid bars for straps, packers, brackets, stiffeners, and fabricated details.

Size range
3 x 12 to 36 x 200
Standard
Dimensions EN 10058 / ASTM A6, specification EN 10025 / ASTM A36 / ASTM A572
Flat bar dimension image
Flat Bar section diagram

Flat Bars size table

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AS 3679.1

Grade 300 strength bands and tolerances for bars.

1

selected specs

3

yield bands

2

grades

Material specification table

3 of 3 thickness bands shown

MaterialStrengthDuctility and toughnessTolerances
MaterialStandardGradeThickness rangeYield strengthTensile strengthMin. elongationMin. Charpy V-notchDimensions and tolerances
AS 3679.1AS 3679.1Grade 300<=11 mm320 N/mm2min. 440 N/mm222%27 J at 0 deg CAS 3679.1
AS 3679.1AS 3679.1Grade 300>11 - <40 mm300 N/mm2min. 440 N/mm222%27 J at 0 deg CAS 3679.1
AS 3679.1AS 3679.1Grade 300>=40 mm280 N/mm2min. 440 N/mm222%27 J at 0 deg CAS 3679.1

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Tables covered

Flat bars for packers, straps, brackets, and stiffeners.
Round bars for rods, pins, spacers, and machined parts.
Square bars for stops, posts, keys, and small fabricated details.
steel bar sizesflat bar sizesround bar sizessquare bar sizesMS flat sizes

Selection checks

For bars used as machined or pinned parts, verify tolerance, straightness, surface condition, and grade.
For packers and brackets, check whether plate cutting is more practical than a stocked bar size.
Use kg/m and area for quick takeoff, then confirm current stock length and minimum order quantity.

Section families

Flat Bars

3 x 12 to 36 x 200 in the catalogue table. Dimensions EN 10058 / ASTM A6, specification EN 10025 / ASTM A36 / ASTM A572.

Round Bars

6 mm to 200 mm diameter in the catalogue table. Dimensions EN 10060 / ASTM A6, specification EN 10025 / ASTM A36 / ASTM A572.

Square Bars

9 mm to 100 mm side in the catalogue table. Dimensions EN 10059 / ASTM A6, specification EN 10025 / ASTM A36 / ASTM A572.