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ASTM A 350/A 350M Document Information:
Title
Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components
ASTM International
Publication Date:
Nov 1, 2007
Scope:
This specification2 covers several grades of carbon
and low-alloy steel forged or ring-rolled flanges, forged fittings
and valves intended primarily for low-temperature service and
requiring notch toughness testing. They are made to specified
dimensions, or to dimensional standards, such as the ASME and API
Specifications referenced in Section 2. Although this specification
covers some piping components machined from rolled bar and seamless
tubular materials (see 5.3.3), it does not cover raw material
produced in these product forms.
No limitation on size is intended beyond the ability of the
manufacturer to obtain the specified requirements. However, Class 3
of Grade LF787 is only available in the quenched-and-precipitation
heat treated condition.
Supplementary requirements are provided for use when additional
testing or inspection is desired. These shall apply only when
specified by the purchaser in the order.
This specification is expressed in both inch-pound units and in
SI units. However, unless the order specifies the applicable "M"
specification designation (SI units), the material shall be
furnished to inch-pound units.
The values stated in either inch-pound units or SI units are to
be regarded separately as standard. 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. Combining values from the two systems
may result in nonconformance with the specification.
NOTE 1—Refer to Test Methods and Definitions A 370 for notes on
significance of notched-bar impact testing.
*A Summary of Changes section appears at the end of this
standard.
2 For ASME Boiler and Pressure Vessel Code
applications see related Specification SA-350 in Section II of that
Code.
Keywords:
- carbon equivalent
- pipe fittings, steel
- piping applications
- pressure containing parts
- steel flanges
- steel forgings, alloy
- steel forgings, carbon
- steel valves
- temperature service applications, low
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