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Corrosion Resisting Alloy AMS 5630/5618


Technical Data Sheet

 

Chemical Composition Limits
Weight% C Si Mn P+S Cr Mo Ni Others
AISI 440C
0.95/ 1.2 1.0 max 1.0 max 0.04 P
0.03 S
16.0 / 18.0 0.75 - -
AFNOR Z100 CD 17 0.90/ 1.2 1.0 max 1.0 max 0.04 P
0.03 S
16.0 / 18.0 0.35 / 0.75 0.50 max Cu 0.50 max
AMS 5630 / 5618 0.95/ 1.2 1.0 max 1.0 max 0.04 P
0.03 S
16.0/ 18.0 0.4/ 0.65 0.75 max Cu 0.50 max
WS 1.4125

0.95/ 1.2 1.0 max 1.0 max 0.04 P
0.03 S
16.0/ 18.0 0.40 / 0.80 - -

AISI 400C is available in either standard melted (ams 5630) or vacuum melted (ams 5618) versions. AMS 5618 is typically used for anti-friction bearing components where resistance to both corrosion and wear is essential. 440C is capable of hardnesses in excess of 58 HRC after heat treatment.

Availability
AMS 5630 is available in Bars, Wire and Forgings. For all stock availability contact Sales.

Specifications
UNS S44004, UNS S44002, UNS S44020
FED QQ S 763
CLASS 440C
AMS 5631
AMS 5632

Services
At Aircraft Materials all stock items can be shipped out within 24 hours, usually within the same day. Even cutting orders for bar or sheet can be processed and dispatched the same day, and for time-critical situations such as AOGs, we have a dedicated AOG service desk ready to help (aog@aircraftmaterials.com).

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Disclaimer
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.

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