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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However, cracks occurring on the corners of the specimen during testing shall not be considered unless there is de? A Indicate the heating and cooking rates, holding temperatures and times. The welding procedure shall be in accordance with that given in the procedure quali?
Surfaces of backing plates when used shall also meet the same cleanliness requirements. Thickness, a88, of Test Plate or Pipe as Welded, in. In lieu of an A number designation, the nominal chemical wstm of the weld deposit shall be 11 indicated on the Welding Material Speci? Guided bend test specimens are of three types depending on which surface -side bend, face bend, or root bend is on the convex outer side of the bent specimen.
The presence or absence of up to 0. This standard has been approved f o r use by agencies of the Department of Defense. Test material shall be subjected to astk same heat-treatment before and after welding as will be applied to the casting. A Indicate degree of inspection. Qpes of Tests 6. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
P-number designations in the ASME grouping of base metals for qualification may be different than the category numbers listed in Table astj. A suggested form X488. Title welding of A steel castings.
A Indicate chemical composition or trade designation. Combining values from the two systems may result in nonconformance with this practice. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
Manufacturer or Contractor Date: Also indicate whether preheat is required during metal removal. The welding procedure shall conform to that given in the procedure qualification. Backing Strip, if any: The astn stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
A superscript epsilon E indicates an editorial change since the last revision or reapproval. A Indicate whether direct or alternating current. Groove dimensions as shown in Fig. Heat-affected zone coupons for impact specimens shall be taken transverse to the weld and etched to de? A bend bar comprised of parent metal heat treated to the ductility and strength requirements of the applicable specification shall be bent to failure.
A number in parentheses indicates the year of last reapproval. Each specimen shall be tested and meet the requirements of 8.
Historical Version s – view previous versions of standard. Types of Tests 6. A Indicate minimum side wall angle. Indicate if reheat maintenance is during welding or until pOStWeid near treatment is pegrrned 2. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
Guided Bend Test 8. B Indicate category number from Table 1. In the event the production weld requires welder or operator qualification, the entire production weld made by that welder or operator shall be radiographed and repaired by a qualified welder or operator.
A Indicate minimum temperature. Users of this standard are expressly advised that determination of the validity zstm any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. The orientation of the welds with respect to the horizontal and vertical planes of reference is classified into four positions, namely, flat, horizontal, vertical, and overhead.
Separate welding procedures are required for each category.
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
B Indicate whether electrode positive EP or electrode negative EN output terminal of power supply is used. P-number designations in the ASME grouping of base metals a848 qualification may be different than the category numbers listed in Table 1. Within the text, the SI units are shown in brackets.
The centers of the specimens adjacent to the metal surfaces shall not exceed in. A Where applicable, indicate electrode care instructions. When using the wrap-around jig Fig. A Indicate material of backing plate. Test material shall be oriented as shown in Fig. A total of four specimens are required to qualify for Position 1 e of Fig. The dimensions of the welding astmm are not essential variables of the welding procedure. The centers of the specimens adjacent to the metal surfaces shall not exceed 5?
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Current edition approved May 1, A Indicate heat treatment before welding.