Stainless Steel
AMS 5628 (7S80D) Bar

Datasheet Updated

16 June 2023

Specifications

Commercial

BS 7S80D

Aerospace

AMS 5628

Martensitic stainless steel that is the aerospace standard similar to 431 stainless steel.

Chemical Composition

AMS 5628

Element % Present

Carbon (C)

0.12 - 0.17

Chromium (Cr)

15.50 - 16.50

Manganese (Mn)

0.30 - 0.80

Silicon (Si)

0.20 - 0.60

Phosphorous (P)

0.04 max

Sulphur (S)

0.03 max

Nickel (Ni)

2.00 - 3.00

Molybdenum (Mo)

0.25 max

Copper (Cu)

0.50 max

Nitrogen (N)

0.10 max

Alloy Designations

  • BS 7S80D
  • 431S29
  • S43100
  • AMS 5628

Supplied Forms

  • Bar
  • Rod

Applications

  • High strength marine fasteners, bolts and shafts
  • Various aerospace components including high strength fasteners
  • Valve parts
  • Chemical equipment
  • Bolts and screws

Characteristics

  • High strength and toughness
  • Very high corrosion resistance
  • Resistance to oxidation up to 800°C

Mechanical Properties

AMS 5628

Minimum Tensile Properties

Property Value

Yield Strength at 0.2% Offset

150 ksi (1034 MPa)

Tensile Strength

200 ksi (1379 MPa)

Elongation in 2 inches or 4D

10%

Reduction of Area

40%

Disclaimer

This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon. Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed S online) and manufacturers' data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources. Material supplied by the Company may vary significantly from this data but will conform to all relevant and applicable standards. As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied. Advice given by the Company to any third party is given for that party's assistance only and without liability on the part of the Company. All transactions are subject to the Company's current Conditions of Sale. The extent of the Company's liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.