Astm A279: Pdf

In modern industrial contexts, materials labeled under this designation are typically austenitic stainless steels known for their exceptional corrosion resistance and mechanical durability.

: Corrosion resistance and dimensional accuracy. Common Grades : 304, 304L, 316, 316L, 321, and 347.

Because of its roots in corrosion testing and its association with high-grade stainless alloys, materials meeting these criteria are used in specialized sectors : Astm A279 Pdf

: Hexagonal and round bars used in saltwater-resistant hardware.

: Seamless tubes, welded tubes, hexagonal rods, and round bars. Chemical & Mechanical Properties In modern industrial contexts, materials labeled under this

: For handling acidic fluids and high-pressure environments.

: Generally measured via Brinell or Rockwell scales (e.g., 160-190 Brinell). Applications & Industries Because of its roots in corrosion testing and

Products associated with this designation must meet strict chemical requirements to ensure performance in harsh environments. Typical Range (Austenitic Grades) 16.0% – 20.0% (provides corrosion resistance) Nickel (Ni) 8.0% – 14.0% (improves toughness and ductility) Molybdenum (Mo) 2.0% – 3.0% (added in Grade 316 for pitting resistance) Carbon (C) 0.03% – 0.08% max (lower in "L" grades for weldability) Mechanical Benchmarks (Annealed State): Tensile Strength : Often exceeds 75-90 ksi. Yield Strength : Typically starts at 30-45 ksi.

While the original standard is no longer active, the term "ASTM A279" is frequently used by manufacturers and suppliers to refer to high-precision stainless steel products—particularly —often in conjunction with active standards like ASTM A276 (for bars and shapes) or ASTM A269 (for tubing). Core Overview of the Specification