Rebar in coil technical specification emirates steel. Pdf variability of chemical analysis of reinforcing bar produced in. 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. A statistical analysis of bar chemical composition is conducted. Grade 60 420 mpa is the most widely used rebar grade in. In the following sections, information is provided on the material properties of hsrb and how those properties compare to grade 60 reinforcing bars. The research objective is to determine if the use of astm a615 grade 80 reinforcement is more economical than astm a615 grade 60 reinforcement for solid, slender reinforced concrete walls, tiltup panels, used as loadbearing exterior walls of a warehouse type building in wind governing regions in the united states of america with ground snow. Corrosion resistance reinforcing bar corrosion begins when. Buy astm a615 grade 60 reinforced steel bar, find details include size,weight,model and width about astm a615 grade 60 reinforced steel bar. Dimensional characteristics of a61575 grade steels. Supply hrb335400 and astm a615 grade 60 reformed steel.
Steel rebar comes in 20 240 random lengths, or have it cuttolength. Earthquake resistant model steel bars astm a615 astm a706. Astm a615 defines the chemical composition of a61540 grade steels as under. Astm a615 bs4449 deformed steel bars grade 60 anti knock reinforced steel rods. The s t a n d a r d now covers grade 40 bars only in. Make an inquiry for astm a615 grade 60 reinforced steel bar at.
Nominal diameter mm cross sectional area mm2 mass per meter kg 8 50. For ductility properties elongation and bending, test provisions of the nearest smaller nominal diameter deformed. This specification covers bars and coils in four grades, grade 40, grade 60, grade 75, and grade 80. Chemical composition of the three alloys used in the study. For ductility properties elongation and bending, test provisions of the nearest smaller nominal diameter deformed bar size shall apply. Grade 60 420 mpa is the most widely used rebar grade in modern us construction. Tensile requirements astm a61518 astm a70616 bar size 40 60 80 100 60 80. If the chemical analysis is provided for the bars in question carbon equivalent, then a welding proceedure can be furnished to conform to ansiaws d1.
A706 rebar is a weldable rebar and especially recommended for capacityprotected. The billets go through a test process to maintain the certified composition of carbon, sulfur and phosphorus in the rebar sections which makes them the best choice for construction. Other grades include grade 40 rebar and grade 75 rebar. Astm a615m grade 60 8 10 12 14 16 18 20 22 25 28 32 36 40 astm a615m grade 75 8 10 12 14 16 18 20 22 25 28 32 36 40. A wide variety of hrb400 astm a615 gr60 8mm steel rebar options are available to you, such as hrb400, hrb500, and hrb335. We conduct inspections on our products to check many factors such as chemical composition, shape, dimension, mechanical property, etc. See the chemical composition and physical properties of astm a615 grade 420 designation no. Common specifications are astm a 615 for carbon steel rebar, astm a 706 for seismic rebar, astm a 955 for stainless steel rebar, and astm a. Astma615 standard specification for deformed and plain. Chromx 9100, 4100 and 2100 bars shall have a minimum chromium composition as indicated in section 3. Astm a615a615m18e1 standard specification for deformed. There are 790 astm a615 grade 60 steel bar suppliers, mainly located in asia. Its strength and performance characteristics are grade dependent, and a615 rebar is available in a full range of standard sizes, including.
Grade 60 reinforcing bars conforming to a615 are the most. The reinforcing bars for the rebar probes were of astm a615, grade 60 bare rebar. The table compares chemical composition, ce, and preheat temperatures for sample astm a615 and astm a706 materials. This rebar grade offers enhanced yield strength of at least 60 thousand pounds per square inch kpsi under normal conditions. The grade designates the yield strength of the material, i. Astm a615 defines the chemical composition of a61560 grade steels as under. Rebar is typically manufactured in grades 40, 60, 75, 80, and 100. Astm 615 steel chemical composition, metal properties. Design according to aci 31819 building code requirements includes chromx bars conforming to astm a1035 grade 100. Rebar is a common steel reinforcing bar used in reinforced concrete and reinforced masonry structures. All grade 60 bars must have either grade mark line or number 60 rolled into bar surface. Astm a1035 specification commercial metals company. These are done under our strict quality control system, and enables us to manufacture high quality products. Deformed steel bar, building material, rebar manufacturer supplier in china, offering supply hrb335400 and astm a615 grade 60 reformed steel barsteel rebar, oxyfuel cutting machine with multi torches, high security handle swipe card waterproof electronic hotel lock and so on.
Astm a615 a615m 20 standard specification for deformed and. Historic grades include 30, 33, 35, 36, 50 and 55 which are not in common use today. If weldable rebar is required, rebar per astm a706 should be considered. As shown, the preheat requirements are lower for a706 than a615 material. Producing a615 a615m high strength construction rebars. Astm a706 grade reinforcing bar weldable rebar harris. It is formed from mild steel and is given ribs for better frictional adhesion to the concrete. Astm a615a615m standard specification for deformed and. American astm a 615 euro din 488 mechanical properties. The bend test requirements in a706 are even more restrictive than the aci exceptions. Which is the suitable electrode to weld reinforcing steel astm a615 grade 60 to a structural steel plate astm a36. A615 bs4449 b500b high tensile reinforcement bar steel deformed bar description. Astm a615 a615m 12 standard specification for deformed.
The average spacing and height of deformations have been measured and found to be in accordance with the requirements of astm a61518 or astm a70616 as indicated on the mill test report. The owner wanted to put in a recess shower stall and the contractor chipped out the concrete and cut out the rebar. Remaining is iron fe percentage and with few other alloys and negligible impurities. Astm a615 grade 100 has a minimum ty ratio of only 1. Astm 615 can be supplied as steel plate sheet, round steel bar, steel tubepipe, steel stripe, steel billet, steel ingot, steel wire rods. Then they decided they should check with an engineer.
Astm a615 bs4449 deformed steel bars grade 60 anti knock. Welding of astm a615 material should be approached with caution, since no specific provisions have been included to enhance its weldability. Over the years, rebar with yield strength 420 mpa, 500 mpa etc. This rebar grade is processed in open hearths, electric furnaces, or basic oxygen furnaces and is available in numerous grades, including grade 60 and grade 80.
Welding rebar structural engineering general discussion. Refer to the applicable astm specifications for more information. Billet steela615 grade 60 re i n f o r cing bars conforming to a615 are the most widely used type and grade of re i n f o rcing steel. For ductility properties elongation and bending, test provisions of the nearest smaller nominal diameter deformed bar size shall. Its strength and performance characteristics are gradedependent, and a615 rebar is available in a full range of standard sizes, including.
Deformed bars produced at qatar steel conform to various national and international standards such as, bs 4449. A minimum preheat is required for bars when the chemical composition is unknown. The variability of the chemical composition of steel reinforcing bars is evaluated and expressions are developed to represent the probability distribution functions for different chemical. Astm a 615 recommends minimum f y as 420 mpa for grade 60 bars whereas f u has been suggested as 620 mpa. Astm a615 covers deformed and plain carbon steel bars for concrete reinforcement. You can also choose from cutting, bending, and welding hrb400 astm a615 gr60 8mm steel rebar, as well as from aisi, astm, and gb hrb400 astm a615 gr60 8mm steel rebar, and whether hrb400 astm a615 gr60 8mm steel rebar is 12m. All billets are casted from first class from high grade with exceptional chemical composition. A615 rebar astm a615 grade reinforcing bar harris supply. Astm a615 grade 60 rebar offers a minimum yield strength of 60,000 pounds per square inch, or 420 megapascals on the metric grading scale.
Astm 615 can be supplied as steel plate sheet, round steel bar, steel tubepipe, steel stripe. This specification covers bars and coils in two grades, grade 60 and grade 80. Astm a615 a615m 20 standard specification for deformed. Astm a615 grade 60 steel bar, astm a615 grade 60 steel bar. A contractor has cut the rebar over a column in a two way slab system. A615 bs4449 b500b high tensile reinforcement bar steel. Variability of chemical analysis of reinforcing bar produced in. For example, grade 60 rebar has a minimum yield strength of 60 ksi. Highyielddeformed steel bars for concrete reinforcement. Buy astm a615 grade 60 reinforced steel bar price,size.
Note that not all bar sizes are available in all grades. When the steel is to be welded, a welding procedure suitable for the chemical composition and intended use or service should be used. Astm a1035 provides a minimum actual tensileyield ty ratio of 1. Astm a615a615m grade 60 standard calls for a minimum 60 ksi 420mpa yield. Fieldscale columnsupported embankment test facility the mat foundation was constructed using 4000 psi 27. Pdf chemical and mechanical properties of steel rebars. Astm a706 rebar is a specification given to lowalloy reinforcing bars in either standard lengths or coiled configurations.
The specification then recommends use of ansiaws d1. Deformed and plain carbonsteel bars for concrete reinforcement. The top supplying countries or regions are china, turkey, and united states, which supply 98%, 1%, and 1% of astm a615 grade 60 steel bar respectively. Chromx 9100, 4100 and 2100 rebar product guide specification. When steel is to be welded, a welding procedure suitable for the chemical composition and intended use or service should be used. The applicable diameter for this a61575 grade material as defined in the astm a615 ranges to 19. Only maximum percentage of phosphorous p is identified by the standard i. Astm a615 rebar is most commonly used in lowstress and lessdemanding applications and makes an economical choice in situations where a tremendous level of tensile strength is not necessarily needed. Astm a706 covers deformed and plain low alloy steel bars for concrete reinforcement with restrictive mechanical properties and chemical composition in order to enhance weldability. The grade designation is equal to the minimum yield strength of the bar in ksi psi for example grade 60 rebar has a minimum yield strength of 60 ksi. Grade 100 690 reinforcing bars were introduced in this specification in.
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