Call us on +44 (0) 1709 570212
  • Language

ASTM A630 – Martensitic Stainless Steel

ASTM A630 is a martensitic copper, chromium and Nickel alloy. This material offers a high strength and a good level of corrosion resistance, comparable of that to grade 304.



ASTM 630


Base Element Fe (Iron)

Element Min Max
C (Carbon) 0.07%
Cr (Chromium) 15% 17.5%
Cu (Copper) 3% 5%
Mn (Manganese) 1%
Ni (Nickel) 3% 5%
P (Phosphorous) 0.04%
S (Sulphur) 0.03%
Si (Silicon) 1%
Mechanical Properties Min Max
Hardness 363 HB


Typically used within the Oil & Gas, petrochemical and aerospace industries, with typical applications including, Pins, valve spindles, pump and propeller shafts etc.

Information is given for illustrative purposes only. Tachart accepts no responsibility for the accuracy of the data contained within or the use of the data by any other party.
This page is protected by copyright and may be freely distributed but not reproduced without permission.

error: Content is Copyright Tachart Bolt & Nut Manufacturing !!