304/304L Project 70®+

UNS #S30403

304/304L Project 70®+ stainless is an improved-machining version of 304/304L and the first chrome-nickel, free-machining stainless steel ever produced. It combines the superior machinability of Project 70®+ stainless with improved straightness and roundness at half-standard dimensional tolerances. This drawn bar has been used successfully in a variety of machining operations including CNC Swiss-style screw machines. It enables machining speed improvements of 50% or more over AISI Type 304 and offers reduced tool wear and increased machine speeds and feeds to help improve productivity and reduce part costs. A good general purpose product for simple and complex parts at a wide range of machining speeds.

Type Analysis

  • Carbon (Maximum) 0.03
  • Phosphorus (Maximum) 0.045
  • Silicon (Maximum) 1
  • Nickel (Nominal) 8.00-10.50
  • Manganese (Maximum) 2
  • Sulfur (Maximum) 0.03
  • Chromium (Nominal) 18.00-20.00
  • Iron (Nominal) Balance

Applications

food processing, dairy and dyeing industry applications such as pipelines, buckets, sterilizers and other types of preparation and processing equipment.

Applicable Specifications

  • AMS 5639
  • AMS-QQ-S-763
  • ASTM A276
  • ASTM F899
  • AMS 5647
  • ASTM A193
  • ASTM A479
  • QQ-S-763

Flats

Hexagons

Rod

Rounds

Square

Wire

Shapes

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