ASTM A1035/A1035M-11
Historical Standard: ASTM A1035/A1035M-11 Standard Specification for Deformed and Plain, Low-carbon, Chromium, Steel Bars for Concrete Reinforcement
SUPERSEDED (see Active link, below)
ASTM A1035 / A1035M
1. Scope
1.1 This specification covers low-carbon, chromium, steel bars, deformed and plain for concrete reinforcement in cut lengths and coils. The standard sizes and dimensions of deformed bars and their number designations are given in Table 1. The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.
1.2 Bars are of two minimum yield strength levels as defined in 9.2: namely, 100 000 psi [690 MPa], and 120 000 [830 MPa] designated as Grade 100 [690] and Grade 120 [830], respectively.
Note 1 Caution: Designers need to be aware that typical design standards limit the design strength to 80 000 psi [550 MPa], except for prestressing steel and for spiral transverse reinforcement. Members reinforced with bars with yield strengths that are considerably above 80 000 psi [550 MPa] may exhibit behavior that differs from that expected of conventional reinforced concrete members or may require special detailing to ensure adequate performance at service and factored loads.
1.3 Deformed bars shall have a minimum yield strength and other tensile properties in accordance with Table 2. Hot-rolled plain rounds in sizes up to and including 2.25 in. [57.2 mm] in diameter in coils or cut lengths when specified for dowels, spirals, structural ties or bar supports shall be furnished under this specification and shall also meet the tensile properties requirements of Table 2. Ductility properties for plain rounds shall be those of the nearest smaller nominal diameter deformed bar size in Table 2. Requirements covering deformation dimensions and marking are not applicable to plain rounds.
Note 2Welding of the material in this specification should be approached with caution since no specific provisions have been included to enhance its weldability. When this steel is to be welded, a welding procedure suitable for the chemical composition and intended use or service should be used.
1.4 This specification is applicable for orders in either inch-pound units (as Specification A1035) or in SI units (as Specification A1035M).
1.5 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
TABLE 1 Deformed Bar Designation Numbers, Nominal Weights [Masses], Nominal Dimensions, and Deformation Requirements
|
Bar Designation No. |
Nominal Weight, lb/ft [Nominal Mass, kg/m] |
Nominal Dimensions A | Deformation Requirements, in. [mm] | ||||
|---|---|---|---|---|---|---|---|
|
Diameter, in. [mm] |
Cross-Sectional Area, in. 2 [mm 2 ] |
Perimeter in. [mm] |
Maximum Average Spacing |
Minimum Average Height |
Maximum Gap (Chord of 12.5 % of Nominal Perimeter) |
||
| 3 [10] | 0.376 [ 0.560] | 0.375 [ 9.5] | 0.11 [ 71] | 1.178 [ 29.9] | 0.262 [ 6.7] | 0.015 [0.38] | 0.143 [ 3.6] |
| 4 [13] | 0.668 [ 0.994] | 0.500 [12.7] | 0.20 [ 129] | 1.571 [ 39.9] | 0.350 [ 8.9] | 0.020 [0.51] | 0.191 [ 4.9] |
| 5 [16] | 1.043 [ 1.552] | 0.625 [15.9] | 0.31 [ 199] | 1.963 [ 49.9] | 0.437 [11.1] | 0.028 [0.71] | 0.239 [ 6.1] |
| 6 [19] | 1.502 [ 2.235] | 0.750 [19.1] | 0.44 [ 284] | 2.356 [ 59.8] | 0.525 [13.3] | 0.038 [0.97] | 0.286 [ 7.3] |
| 7 [22] | 2.044 [ 3.042] | 0.875 [22.2] | 0.60 [ 387] | 2.749 [ 69.8] | 0.612 [15.5] | 0.044 [1.12] | 0.334 [ 8.5] |
| 8 [25] | 2.670 [ 3.973] | 1.000 [25.4] | 0.79 [ 510] | 3.142 [ 79.8] | 0.700 [17.8] | 0.050 [1.27] | 0.383 [ 9.7] |
| 9 [29] | 3.400 [ 5.060] | 1.128 [28.7] | 1.00 [ 645] | 3.544 [ 90.0] | 0.790 [20.1] | 0.056 [1.42] | 0.431 [10.9] |
| 10 [32] | 4.303 [ 6.404] | 1.270 [32.3] | 1.27 [ 819] | 3.990 [101.3] | 0.889 [22.6] | 0.064 [1.63] | 0.487 [12.4] |
| 11 [36] | 5.313 [ 7.907] | 1.410 [35.8] | 1.56 [1006] | 4.430 [112.5] | 0.987 [25.1] | 0.071 [1.80] | 0.540 [13.7] |
| 14 [43] | 7.65 [11.38 ] | 1.693 [43.0] | 2.25 [1452] | 5.32 [135.1] | 1.185 [30.1] | 0.085 [2.16] | 0.648 [16.5] |
| 18 [57] | 13.60 [20.24 ] | 2.257 [57.3] | 4.00 [2581] | 7.09 [180.1] | 1.58 [40.1] | 0.102 [2.59] | 0.864 [21.9] |
A The nominal dimensions of a deformed bar are equivalent to those of a plain round bar having the same weight [mass] per foot [metre] as the deformed bar.
TABLE 2 Tensile Properties Requirements
| Grade 100 [690] | Grade 120 [830] | |
| Tensile strength, min, psi [MPa] | 150 000 [1030] | 150 000 [1030] |
| Yield strength (0.2 % offset), min, psi [MPa] | 100 000 [ 690] | 120 000 [ 830] |
|
Stress corresponding to an extension under load of 0.0035 in./in. (0.0035 mm/mm), min, psi [MPa] |
80 000 [ 550] | 90 000 [ 620] |
| Elongation in 8 in. [200 mm], min, %: | ||
| Bar Designation No. | ||
| 3 through 11 [10 through 36] | 7 | 7 |
| 14, 18 [43, 57] | 6 |
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A510 Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
A510M Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel (Metric)
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
U.S. Military Standard
MIL-STD-129 Marking for Shipment and StorageU.S. Federal Standard
Fed.?Std.?No.? Marking for Shipment (Civil Agencies)Keywords
concrete reinforcement; deformations (protrusions); low-carbon, chromium steel bars;
ICS Code
ICS Number Code 77.140.15 (Steels for reinforcement of concrete)
DOI: 10.1520/A1035_A1035M-11
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