Black Rebar

rebar hot millBlack Rebar

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While some reinforcing bar products have special coatings, such as epoxy or anti-rust treatments, these rebar types are generally reserved for marine applications and situations where the metal may be exposed to the corrosive effects of water. Black rebar is an uncoated alternative that provides superior cost effectiveness for applications where epoxy and anti-rust coatings are not needed.

 

At H&R Enterprise, we offer customers several black rebar products with varying specifications. Our standard product line includes:

 

  • Grade 40 black rebar. This rebar grade has minimum yield strength of 40 thousand pounds per square inch (kpsi) under normal conditions.
  • Grade 60 black rebar. This rebar grade offers enhanced yield strength of at least 60 thousand pounds per square inch (kpsi) under normal conditions.

Both Grade 40 and Grade 60 black rebar conform to ASTM A-615 standards and ASTM A996 axle grade rebar – made exclusively from recycled train axles and similar in product performance to the more commonly used ASTM A615 bar.

ASTM A615 rebar

Available in four grades: 40, 60, 75, and 80. It is most commonly used in low-stress and less-demanding applications, and makes an economical choice in situations where a tremendous level of tensile strength is not necessarily needed. Its strength and performance characteristics are grade-dependent, and A615 rebar is available in a full range of standard sizes, including:

 

  • No. 3 through No. 11
  • No. 14
  • No. 18

recycled train axles for A995ASTM A996 axle grade rebar

Available in two grades: 40 and 60. Like A615 It is most commonly used in low-stress and less-demanding applications, and makes an economical choice in situations where a tremendous level of tensile strength is not necessarily needed. Its strength and performance characteristics are grade-dependent, and A996 axle grade rebar is available in a range of standard sizes, including:

 

  • No. 3 through No. 8

Grade 40 Rebar

In construction engineering, steel reinforcing bar or “rebar” is widely used in tandem with concrete components, since steel and concrete have similar heat expansion coefficients. Thus, rebar can be used to increase the inherent tactile strength of concrete, adding long-term stability to the structure. To provide consumers with a reliable means of gauging the suitability of specific products for specific applications, all rebar products are standardized and graded.

Rebar with a grade 40 designation offers a minimum yield strength of 40,000 pounds per square inch and conforms to ASTM A-615 performance standards. Its metric counterpart is grade 280 rebar, with an equivalent minimum yield strength of 280 megapascals. This makes grade 40 rebar an excellent choice for light- to medium-duty concrete reinforcing applications.

Grade 60 Rebar

Grade 60 rebar offers a minimum yield strength of 60,000 pounds per square inch, or 420 megapascals on the metric grading scale. It also features a continuous line system, with one line running along the length of the bar which is offset a minimum of five spaces from the center. These characteristics make grade 60 rebar particularly well-suited for medium- to heavy-duty concrete reinforcement applications.