Referenced Documents ASTM Standards: A 27/A 27M Specification for Steel Castings, Carbon, A /A M A /A M Specification for Castings. ASTM A – 4CTb Designation: A /A M – 01” An American National Standard Standard Pra. 费下载 免 w 焊接人 w Designation: A /A M – 07 Standard Practice for Steel Castings, Welding, Quali?cations of.

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A total of four specimens are required to qualify for Position 1 e of Fig. Test plate material for performance qualification testing is covered in A Asfm the number for controlling the maximum width. Also indicate whether preheat is requimd dwing metal mal. If the castings are not to be postweld heat treated, then the test material is not to be postweld heat treated.

Charpy Impact Test 9. Sstm notch shall be cut normal to the material surface in the heat-affected zone to include as much heat-affected zone as possible in the resulting fracture Fig. ICS Number Code Active view current version of standard Translated Standard: The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.

Guided bend ast specimens are of three types depending on which surface side, face, or root is on the convex outer side of the bent specimen.

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Metric Equivalents Y 8 [mml t, in. Preparation of Test Plate 5.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of adtm limitations prior to use. Combining values from the two systems may result in nonconformance with this practice.

Historical Version s – asmt previous versions of standard. When two base materials having different category numbers are welded together, a procedure qualification must be performed for the combination. However, cracks occurring on the corners of the specimen during testing shall not be considered unless there is definite evidence that they result from slag inclusions or other internal defects.

A suggested form Fig. This standard has been approved for use by agencies of the Department of Defense. DThe ends may be threaded or shaped to fit the holders of the testing machine in such a way that the load is applied axially. Alternatively, the entire weld shall be removed and replaced a488 a qualified welder or operator.

When postweld heat treatment consists of a full reheat treatment of the welded part, thus eliminating the HAZ, impact testing of the HAZ shall not be required.

In accordance with Procedure No. Range of Thickness Qualified: Preparation of Base Material 6. A Indicate the heating and cooking rates, holding temperatures and times. This standard has been approved f o r use by agencies of the Department of Defense.

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ASTM AAM 钢铸件焊接程序和人员资格的标准实施规程_百度文库

Each specimen shall be tested and meet the requirements of 8. Backing plates shall be made fromA steel and shall? A bend bar comprised of parent metal x488 treated to the ductility and strength requirements of the applicable speci?

The dimensions of the welding groove are not essential variables of the welding procedure.

Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel

Four types of test shall be conducted in the qualification procedures such as tension test, bend test, Charpy impact test and radiographic test. It is informational only and not an official part of the standard; the full text of the standard itself wstm be referred to for its use and application.

A Indicate type of inspection. B Indicate maximum temperature. If the castings are not to be postweld heattreated, then the test material is not to be postweld heat-treated.

The welding procedure shall conform to that given in the procedure qualification. Collectively, all of the specimens required to represent the full thickness of the weld at one location shall comprise a set.

The welder or operator successfully qstm