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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Historical Version s – view previous versions of standard. Work Item s – proposed revisions of this standard. This practice covers the qualification of procedures, welders, and operators for the fabrication and repair of steel castings by electric arc welding.
The materials are categorized as carbon steel, carbon and carbon-manganese steel, low alloy steel, ferritic stainless steel, martensitic stainless steel, low carbon austenitic stainless steel, unstabilized austenitic stainless steel, austenitic stainless steel, duplex austenitic-ferritic stainless steel, precipitation-hardened austenitic stainless steel, nickel base alloy, steel castings, austenitic manganese.
The orientation of the welds with respect to the horizontal and vertical planes astj reference is classified into four positions, namely, flat, horizontal, vertical, and overhead.
Four types of test shall be conducted in the qualification procedures such as tension test, bend test, Charpy impact test and radiographic test. Guided bend test specimens shall be prepared by cutting the test plate or pipe to form specimens of approximately rectangular cross section. Guided bend test specimens are q488 three types depending on which surface -side bend, face bend, or root bend is on the convex outer side of the bent specimen.
A welding procedure must be set up as a new procedure and must be requalified axtm any of the changes in essential variables, inclusive, are made.
Changes other than those listed may be made without requalification, provided the procedure is revised to show these changes.
All welders and operators welding castings under this practice shall pass the welder qualification test. The welder or operator successfully performing the procedure qualification test is automatically qualified for performance. This abstract is a brief summary of the referenced standard.
Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to satm.
P-number designations in the ASME grouping of base metals for qualification may be different than the category numbers listed in Table 1. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
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
Combining values from the two systems may result in nonconformance with the standard. It is the responsibility of the user of this standard to establish appropriate safety, health, satm environmental practices and determine the applicability of regulatory limitations prior to use. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part asym the standard.
ICS Number Code Link to Active This link will always route to the current Active version of the standard.