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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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This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Indialte amenskn ofmaximum gap. Types of Tests 6. Combining values from the two systems may result in nonconformance with this practice.

A suggested form for recording such information is shown in Fig. Last previous edition A A M D The ends may be threaded or shaped to?

Heat-affected zone coupons for impact specimens shall be taken transverse to the weld and etched to de? A Indicate degree of inspection.

Either the face- and root-bend tests or the side-bend tests may be used for thicknesses from 3? Heat-affected zone coupons for impact specimens shall be taken transverse to the weld and etched to define the heat-affected zone. Welding shall be done without rotating the pipe or casting so that the weld metal is deposited from the? Users of this standard are expressly advised that astk 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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The welder or operator successfully performing the procedure qualification test is automatically qualified for performance. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this 4a88.

Charpy Impact Test 9. A Indicate the heating and cooking rates, holding temperatures and times. Tensile strength equal to or greater than 85 ksi [ MPa]. Qualification in the horizontal fixed position, or in the horizontal and vertical and overhead positions, shall qual for all positions Fig.

B Indicate category number from Table 1.

Root Bend 2 The 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. Single or Multiple Pass: P-number designations in the ASME grouping of base metals for quali?

The weld to be radiographed shall be at least 6 in. A Indicate appropriate American Welding Society speci?

Changes other than those listed may be made without requalification, provided the procedure is revised to show these changes. Post-Weld Heat Treatment Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.


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

In the event the a4488 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. If pulsed, state frequency.

When using the wrap-around jig Fig.

For welding processes using wire, indicate wire diameter, wire feed speed, and current requirements. A Indicate chemical composition or trade designation.

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

Referenced Documents purchase separately The documents listed below are referenced within the subject a4888 but are not provided as part of the standard. The cut surfaces shall be designated the sides of the specimen. A suggested form Fig. A Indicate the degree of peening required. Each specimen shall be oriented so that the notch is normal to the surface of the material and one face of the specimen shall be within 1?

A Indicate minimum distance for local preheating.