A279 Pdf - Astm

This paper provides a comprehensive analysis and summary of , the historical Standard Specification for Seamless and Welded Ferritic and Austenitic Stainless Steel Tubing for General Service. This standard was historically utilized to define the requirements for stainless steel tubes used in structural, mechanical, and general corrosive environments where high temperatures and pressures were not the primary concern. This document outlines the scope, chemical composition, mechanical properties, and testing methodologies defined within the standard, serving as a reference for engineers dealing with legacy systems or material substitution.

Specifically for detecting susceptibility to intergranular attack in austenitic stainless steels. Astm A279 Pdf

: Offers reliable structural stability and resistance to stress corrosion cracking. This paper provides a comprehensive analysis and summary

By 1945, ASTM withdrew the isolated A279 document. The testing guidelines were synthesized into comprehensive, modern testing practices. These include ASTM A262 (for detecting susceptibility to intergranular attack in austenitic stainless steels) and broader mechanical/chemical specification books. oil and gas

| Grade | C | Mn | Si | Cr | V | Mo | W | | --- | --- | --- | --- | --- | --- | --- | --- | | M1 | 0.80-1.00 | 0.20-0.40 | 0.20-0.40 | 3.50-4.50 | 1.00-1.50 | 5.00-6.00 | 1.50-2.50 | | M2 | 0.95-1.15 | 0.20-0.40 | 0.20-0.40 | 3.50-4.50 | 1.80-2.20 | 4.50-5.50 | 5.50-6.50 | | M3 | 1.00-1.20 | 0.20-0.40 | 0.20-0.40 | 3.50-4.50 | 2.00-2.50 | 4.50-5.50 | 6.00-7.00 | | M4 | 1.00-1.20 | 0.20-0.40 | 0.20-0.40 | 4.00-5.00 | 2.00-2.50 | 4.50-5.50 | 5.00-6.00 | | M5 | 1.00-1.20 | 0.20-0.40 | 0.20-0.40 | 4.00-5.00 | 2.50-3.00 | 4.50-5.50 | 6.50-7.50 | | M6 | 1.00-1.20 | 0.20-0.40 | 0.20-0.40 | 4.00-5.00 | 1.50-2.00 | 5.00-6.00 | 5.00-6.00 | | M7 | 1.00-1.20 | 0.20-0.40 | 0.20-0.40 | 3.50-4.50 | 2.00-2.50 | 5.00-6.00 | 1.50-2.50 | | M10 | 0.95-1.15 | 0.20-0.40 | 0.20-0.40 | 3.00-4.00 | 1.00-1.50 | 7.00-8.00 | 0.50-1.00 | | M42 | 1.05-1.25 | 0.20-0.40 | 0.20-0.40 | 3.50-4.50 | 1.00-1.50 | 9.00-10.00 | 5.00-6.00 |

for certain corrosion environments.

These materials are highly sought after by industries like Sabre Alloys and other major distributors servicing aerospace, oil and gas, and chemical processing networks. 2. Chemical Composition Requirements