AMS 5639 Stainless Steel 304 Tube and Bar

Technical Data Sheet


Chemical Composition Limits
Weight% C Mn Si P S Cr Ni Mo Cr
AMS 5639
0.08 max 2.00 max 1.00 max 0.040 max 0.030 max 18-22 8-12 1.00 max 1.00 max

Typical Mechanical Properties


Specification Tensile Strength (ksi)
Yield Strength (ksi) Elongation (%) Reduction of Area Hardness HB
AMS 5639 Bar 75 30 40 50 -
AMS 5639 Tube - - - - 187

AMS 5639 is available in round bar, flat bar, square bar, hexagon bar, forgings and tubes (see shapes below). Contact Sales for further availability.

AMS 5639 - 304 Seamless Stainless Tube


At Aircraft Materials we specialise in the rapid turn-around of orders, with most stock items ready for shipping out the same day to anywhere in the world. For time-critical orders, such as AOGs use our AOG service desk (, the team are dedicated to processing and dispatching orders on the same day, even for cutting orders on bar and sheet products.

Our expertise in global logistics enables us to source material from anywhere in the world in a matter of days and provide fast shipping solutions to all our customers, whichever country they are in. We use a range of transport partners to ship overnight within the UK and Europe, and offer a full range of logistics solutions from priority express services to more cost-effective economy shipments all around the globe. To find out more about our services click here.

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.