ASTM A plate, a low alloy, low carbon steel, exhibits high strength, high formability and ease of machining. It is easy to weld and produces a secure weld. ASTM A/AM: Standard Specification for Steel, Sheet and Strip, Heavy- Thickness Coils, Hot-Rolled, Carbon, Commercial, Drawing, Structural. ASTM A – Designation: A /A M – 05 Standard Speci?cation for Steel, Sheet and Strip.
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A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
The user should consult the producer for appropriate size limitations. 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. Plate converted from coils is no longer governed by this sheet steel speci?
In these cases, the more restrictive limits of either speci? Asttm edition approved May 1, Originally approved in General Requirements for Delivery 3. The material is available in two classes. They are similar in strength level, except that Asgm 2 offers improved weldability and more formability than Class 1. Atmospheric corrosion resistance of these steels is equivalent to plain carbon steels.
The steel is killed and made to a? The steel shall be treated to achieve inclusion control. The material is intended for miscellaneous applications where higher strength, aztm in weight, improved formability, and weldability are important.
When Limits A or Limits B are not speci? Pickled or blast cleaned must be speci?
A1011/A1018 CS Type B Sheet
Grades,,SS: When copper bearing steel is not speci? B For Limits B steels, the sum of copper, nickel, chromium and molybdenum shall not exceed 1. When one or more of these elements are speci? C For Limits B steels, the sum of chromium and molybdenum shall not exceed 0.
The purchaser should contact the producer regarding possible limitations prior to placing an order.
Orders for conversion to plate shall include reference to the applicable ASTM plate speci? NOTE 3—A typical ordering description is as follows: GradeHigh-Strength Low-Alloy Steel, Class 2, Limits B, hot-rolled sheet coils, pickled and oiled, cut edge; 10 mm by mm by coil; ID mm, OD aa1018, maximum; coil weight 18 kg maximum; 90 kg for roll forming shapes.
For conversion to plate: GradeStructural Steel, hot-rolled sheet coils, as rolled, 6. Table 1 describes the heat analysis requirements for two sets of limits for the elements copper, chromium, nickel, and molybdenum. The required limits of these elements shall be speci?
When the amount of copper, nickel, chromium, ashm molybdenum is less than 0. When the amount of columbium, titanium, or vanadium is less than 0.
For certain welding processes, more restrictive composition limits may be desirable and should be requested at the time of inquiry and ordering. See Table 3 for z1018 of copper, chromium, nickel, and molybdenum 0. B Titanium is permitted to 0. C When copper steel is speci? When copper steel axtm not speci?
For product greater than 0. The minimum requirements only apply to the microalloy elements selected for strengthening of the steel. E The purchaser has the option of restricting astmm nitrogen content. It should be noted that, depending on the microalloying scheme for example, use of vanadium of the producer, nitrogen may be a deliberate addition.
Consideration should be made for the use of nitrogen binding elements for example, vanadium, titanium. These requirements do not apply to the uncropped ends of unprocessed coils. The test shall be taken approximately midway between the center and edge of the material as rolled.
For coils wider than 24 in. For coils through 24 in. When the amount of? When material rolled from one heat differs 0. There are many interrelated factors that affect the ability of a given steel to cold form over a given radius a118 shop conditions.
These factors include thickness, strength level, degree of restraint, relationship to rolling direction, chemistry, and microstructure. Aa1018 producer shall be consulted concerning the recommended minimum inside radius and bending direction.
This is not considered a fault of the steel, but is rather a function of the induced cold work or heat affected zone. Workmanship, Finish, and Appearance 8. If cut edge is required, it must be speci? Elongation in 8 in. Ast, Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade Grade 45 45 50 50 55 55 60 60 65 65 70 70   aztm          Class Class Class Class Class Class Class Class Class Class Class Class 1 2 1 2 1 2 1 2 1 2 1 2 45 45 50 xstm 55 55 60 60 65 65 70 70        axtm     60 55 65 60 70 65 75 70 80 75 85 80             22 22 20 20 18 18 16 16 14 14 12 12 17 17 16 16 15 15 14 14 12 12 10 10 HSLAS-F Grade Grade Grade Grade A B 50 60 70 80     50 60 70 80     x1018 70 80 90     22 16 12 12 16 14 10 10 For coil products, testing by the producer is limited to the end of the coil.
Mechanical properties throughout the coil shall comply with the minimum values speci? A minimum and maximum tensile strength are speci? When required, it is permissible to x1018 pickled or blast cleaned material be furnished dry, or that as-rolled material be furnished oiled. When required, material shall be speci?
AK Steel ASTM A , Grade 36 Type 1 and 2 Hot Rolled Carbon Steel, Structural Steel (SS)
Retests and Disposition of Non-Conforming Material 9. These additional requirements shall apply only when speci? NOTE 3—Material that does not perform satisfactorily, when fabricated in accordance with the above requirements, may be subject to rejection pending negotiation with the steel supplier. Product Structural Steel Grade 30  33  36  Type 1 36  Type 2 40  45  50  55  Class 1 45 50 55 60 65 70 High-Strength Low-Alloy Steel with Improved Formability 50 60 70 80     1t 11?
Approved May 1, Revisions to Table 2: Corrected typographical error in the C requirement for Designations and Revisions to Table 3: Approved April 1, ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
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