ANSI API Spec 7-1:2006 (2020)-1 Standard pdf download.Specification for Rotary Drill Stem Elements.
1.1 Coverage
ANSI API Spec 7-1 specifies requirements for the following drill stem elements: upper and lower kelly valves; square and hexagonal kellys; drill stem subs; standard steel and non-magnetic drill collars; drilling and coring bits.
ANSI API Spec 7-1 is not applicable to drill pipe and tool joints, rotary shouldered connection designs, thread gauging practice, or grand master, reference master and working gauges.
A typical drill stem assembly to which this standard is applicable is shown in Figure 1.
1.2 Application of the API Monogram
If the product is manufactured at a facility licensed by API and is intended to be supplied bearing the API Monogram, the requirements of Annex B apply.
2 Conformance
2.1 Units of Measurement
In this International Standard, data are expressed in both the International System (SI) of units and the United States Customary (USC) system of units. For a specific order item, it is intended that only one system of units be used, without combining data expressed in the other system.
Products manufactured to specifications expressed in either of these unit systems shall be considered equivalent and totally interchangeable. Consequently, compliance with the requirements of this International Standard as expressed in one system provides compliance with requirements in the other system.
For data expressed in the SI, a comma is used as the decimal separator and a space as the thousands separator. For data expressed in the USC system, a dot is used as the decimal separator and a space as the thousands separator.
Data within the text of this International Standard are expressed in SI units followed by data in USC units in parentheses.
2.2 Tables and figures
Separate tables for data expressed in SI units and in USC units are given. The tables containing data in SI units are included in the text and the tables containing data in USC units are given in Annex A. For a specific order item, only one unit system shall be used.
Figures are contained in the text of the clause concerning the particular product, and express data in both SI and USC units.
3 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any addenda or errata) applies.
ISO 148, Steel — Charpy impact test (V notch)
ISO 3452, Non-destructive testing — Penetrant inspection — General principles
ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
ISO 6892, Metallic materials — Tensile testing at ambient temperature.ANSI API Spec 7-1 pdf download.