Stainless Steel 304 (AMS 5513) /304L (AMS 5511)

 Technical Data Sheet

Type 304 is a variation of the basic 18-8 grade, Type 304, with a higher chromium and lower carbon content. Lower carbon minimizes chromium carbide precipitation due to welding and its susceptibility to intergranular corrosion. In many instances, it can be used in the ”as-welded“ condition, while Type 304 must be annealed in order to retain adequate corrosion resistance.

 Type 304L is an extra low-carbon variation of Type 304 with a 0.03% maximum carbon content that eliminates carbide precipitation due to welding. As a result, this alloy can be used in the ”as-welded“ condition, even in severe corrosive conditions. It often eliminates the necessity of annealing weldments except for applications specifying stress relief. It has slightly lower mechanical properties than Type 304.

Typical Mechanical Properties

Availability
 304 is available in Sheet, Strip, Plate, Tube, Bar (Round), Rod, Rings, Forgings. 304 Foil (Shim) is available in various thicknesses. View stock list for further information. Foil Stock List, Sheet Stock List, Plate Stock List. Contact Sales for further availability.

NEW - Aircraft Materials now offers a comprehensive range of high-quality 304 metal powders, produced and tested to exacting standards for use in all processes including Additive Manufacturing (AM), Near-Net Shape Powder Metallurgy (NNS/PS) and Hot-Isostatic Pressing (HIP).  

Specifications
Types 304 Stainless Steel and 304L Stainless Steel are covered by the following specifications:
Type 304 L Vac Melt (AMS 5647, QQ-S-763, ASME SA 479, ASTM A 276, ASTM A 479, ASTM A 484)
AMS 5501 Sheet / strip 125ksi
AMS 5511 Sheet /strip (ann)
AMS 5513 Sheet / strip (ann)
AMS 5560 Seamless tube
AMS 5563 1/4Hd seamless/welded
AMS 5564 1/8Hd seamless/welded
AMS 5565 Welded tube
AMS 5566 Seamless/welded tube
AMS 5567 Seamless/welded tube
AMS 5569 Seamless/ welded tube
AMS 5575 Welded tube
AMS 5639 Bar / Forgings (304)
AMS 5647 Bar / Forgings (304L)
MIL-T-8506 Seamless /welded tube
MIL-T-5695 Seamless / welded tube
MIL-T-6845 Seamless / welded
MIL-T-8504 Seamless/welded tube
MIL-T-6737 Welded tube
QQ-S-763
ASTM A276 / ASME SA276
ASTM A479 / ASME SA479
ASTM A484 / ASME SA484
ASTM A276 Powder
BS 970; 304S31 / 304S12
WS 1.4306
AFNOR Z2CN18-10
UNS S30400
 UNS S30403