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AASHTO M 227M/M 227
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AASHTO M 227M/M 227 2013 Edition, January 1, 2013 Standard Specification for Steel Bars, Carbon, Merchant Quality, Mechanical Properties
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Description / Abstract:
This specification covers hot-wrought merchant quality carbon steel bars and bar size shapes produced to mechanical property requirements and intended for noncritical constructional applications. (See Section 4.2.)
Merchant quality hot-wrought steel bar is available in the following ranges of size and section:
Rounds, squares, and hexagons with diameters or distance across flats less than 75 mm [3 in.].
Bar size shapes with maximum dimensions less than 75 mm [3 in.].
Other bar sections with weight per foot less than 60.78 kg/m [40.84 lb/ft].
Flats 150 mm [6 in.] or less in width, more than 5.156 mm [0.203 in.] in thickness, and less than 60.78 kg/m or 77 cm2 [40.84 lb/ft or 12 in.2] in cross-sectional area.
Flats over 50 to 200 mm [6 to 8 in.] inclusive in width, 6 mm [0.230 in.] in thickness, and under 60.78 kg/m or 77 cm2 [40.84 lb/ft or 12 in.2] in cross-sectional area.
Hot-wrought merchant quality carbon steel bars subject to mechanical property requirements are hot wrought in straight lengths only.
Some applications may require one or more of the available designations shown under supplementary requirements.
Note 1—Special quality hot-wrought carbon steel bars subject to mechanical property requirements are covered in M 255M/M 255.
This specification is applicable to orders in either SI units (as M 227M) or inch-pound units (as M 227). SI units and inch-pound units are not necessarily equivalent. Inch-pound units are shown in brackets in the text for clarity, but they are the applicable values when the material is ordered to M 227.
Merchant quality hot-wrought steel bar is available in the following ranges of size and section:
Rounds, squares, and hexagons with diameters or distance across flats less than 75 mm [3 in.].
Bar size shapes with maximum dimensions less than 75 mm [3 in.].
Other bar sections with weight per foot less than 60.78 kg/m [40.84 lb/ft].
Flats 150 mm [6 in.] or less in width, more than 5.156 mm [0.203 in.] in thickness, and less than 60.78 kg/m or 77 cm2 [40.84 lb/ft or 12 in.2] in cross-sectional area.
Flats over 50 to 200 mm [6 to 8 in.] inclusive in width, 6 mm [0.230 in.] in thickness, and under 60.78 kg/m or 77 cm2 [40.84 lb/ft or 12 in.2] in cross-sectional area.
Hot-wrought merchant quality carbon steel bars subject to mechanical property requirements are hot wrought in straight lengths only.
Some applications may require one or more of the available designations shown under supplementary requirements.
Note 1—Special quality hot-wrought carbon steel bars subject to mechanical property requirements are covered in M 255M/M 255.
This specification is applicable to orders in either SI units (as M 227M) or inch-pound units (as M 227). SI units and inch-pound units are not necessarily equivalent. Inch-pound units are shown in brackets in the text for clarity, but they are the applicable values when the material is ordered to M 227.