ASTM F738M-01 - 10.4.2002
 
1. Scope

1.1 This specification covers the chemical and mechanical requirements for stainless steel metric bolts, screws, and studs with nominal thread diameters M1.6 through M36 and is intended for use in engineering applications requiring general corrosion resistance.

1.2 Eight groups of stainless steel alloys are covered, including three austenitic (Grades A1, A2, and A4), one ferritic (Grade F1), three martensitic (Grades C1, C3, and C4), and one precipitation hardening (Grade P1).

1.3 Twenty property classes are covered, including nine austenitic, two ferritic, eight martensitic, and one precipitation hardening. The property classes with the permissible alloys for each are listed in Table 1.

1.4 This specification is based in concept and content on ISO 3506. The chemical and mechanical requirements specified for all property classes, except as given in , are essentially identical with classes of the same designation in ISO 3506.

1.4.1 This specification includes all of the property classes covered in ISO 3506. Additionally, it includes property classes A1-70, A2-70, A4-70, A1-80, A2-80, and A4-80 for products with nominal thread diameters larger than M20; and four non-ISO property classes, C1-110, C4-110, C3-120; and P1-90.

1.5 Supplementary requirements of an optional nature are provided, applicable only when agreed upon between the manufacturer and the purchaser at the time of the inquiry and order.

1.6 Suitable nuts for use with bolts, screws, and studs included in this specification are covered by Specification F 836M.

1.7 The following safety hazards caveat pertains only to the test method described in this specification.This standard does not purport to address the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

E353-19e1

Standard Test Methods for Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys (Includes all amendments and changes 2/23/2022).

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

D3951-18(2023)

Standard Practice for Commercial Packaging

A751-21

Standard Test Methods and Practices for Chemical Analysis of Steel Products

A582/A582M-22

Standard Specification for Free-Machining Stainless Steel Bars

A564/A564M-19a

Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes (Includes all amendments and changes 4/2/2021).

A555/A555M-23

Standard Specification for General Requirements for Stainless Steel Wire and Wire Rods

A493-23

Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

A484/A484M-24

Standard Specification for General Requirements for Stainless Steel Bars, Billets, Shapes, and Forgings

A380-06

Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems

A342/A342M-21

Standard Test Methods for Permeability of Weakly Magnetic Materials

A276-13

Standard Specification for Stainless Steel Bars and Shapes

ISO 3506

Corrosion-Resistant Stainless Steel Fasteners Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.

F1470-24

Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection

F836M-20

Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric) (Withdrawn 2023)

F606M-14

Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets (Metric) (Withdrawn 2015)