GB488690A - Improvements relating to machine parts made from iron-chromium alloys resistant to acid and rust - Google Patents

Improvements relating to machine parts made from iron-chromium alloys resistant to acid and rust

Info

Publication number
GB488690A
GB488690A GB3030437A GB3030437A GB488690A GB 488690 A GB488690 A GB 488690A GB 3030437 A GB3030437 A GB 3030437A GB 3030437 A GB3030437 A GB 3030437A GB 488690 A GB488690 A GB 488690A
Authority
GB
United Kingdom
Prior art keywords
per cent
silicon
machine parts
content
hardness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3030437A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB3030437A priority Critical patent/GB488690A/en
Publication of GB488690A publication Critical patent/GB488690A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium

Abstract

A pair of machine parts moving in contact without lubrication, e.g. plug valves and their casings, pistons and cylinder liners, bearing bushes, race rings, &c. are made from ironchromium alloys of different Brinell hardness. One alloy preferably has a hardness more than 50 per cent greater than the other. The softer alloy may comprise 15-40 per cent of chromium, 0,7-3 per cent of carbon, 1-2 per cent of silicon, and remainder iron except for the usual manganese, phosphorus, and sulphur content, the silicon content being greater than half the carbon content. The harder alloy is similar with a silicon content less than half the carbon content and containing 0,1-1,4 per cent of silicon and if desired an addition of 1-10 per cent of nickel to produce a smooth surface. The hardness may be varied by additions of manganese, molybdenum, and tungsten.
GB3030437A 1937-11-04 1937-11-04 Improvements relating to machine parts made from iron-chromium alloys resistant to acid and rust Expired GB488690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3030437A GB488690A (en) 1937-11-04 1937-11-04 Improvements relating to machine parts made from iron-chromium alloys resistant to acid and rust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3030437A GB488690A (en) 1937-11-04 1937-11-04 Improvements relating to machine parts made from iron-chromium alloys resistant to acid and rust

Publications (1)

Publication Number Publication Date
GB488690A true GB488690A (en) 1938-07-12

Family

ID=10305508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3030437A Expired GB488690A (en) 1937-11-04 1937-11-04 Improvements relating to machine parts made from iron-chromium alloys resistant to acid and rust

Country Status (1)

Country Link
GB (1) GB488690A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2315776A (en) * 1996-07-31 1998-02-11 Nsk Ltd A roller bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2315776A (en) * 1996-07-31 1998-02-11 Nsk Ltd A roller bearing
GB2315776B (en) * 1996-07-31 1998-10-28 Nsk Ltd Rolling bearing
US5997661A (en) * 1996-07-31 1999-12-07 Nsk Ltd. Rolling bearing

Similar Documents

Publication Publication Date Title
GB488690A (en) Improvements relating to machine parts made from iron-chromium alloys resistant to acid and rust
GB401644A (en) Improvements in chromium cast iron alloys
GB495435A (en) Improvements in and relating to x-ray apparatus
US1510242A (en) Alloy and apparatus made therefrom
GB462284A (en) Cast iron alloy
SU100171A1 (en) Alloy steel
GB481105A (en) Improvements in corrosion-resistant alloys
GB500200A (en) Steel alloy
GB397079A (en) Improvements in armour plate
US2230687A (en) Manufacture of high speed steels
US2198775A (en) Ferrous alloy
GB467397A (en) Improvements in or relating to bearing bushes
SU428033A1 (en) CAST IRON
GB479584A (en) Improvements in piston rings
SU238788A1 (en) CAST IRON FOR CASTING COMPRESSORS DETAILS
GB476350A (en) Improvements in or relating to metal rolls and method of making same
GB436401A (en) Improvements in the manufacture of compound metal bodies
GB446786A (en) An improved cast-iron alloy
GB544247A (en) Improvements in the manufacture of rolling bearings
GB448681A (en) Improvements in or relating to journal bearings
GB472450A (en) An improved iron alloy for casting purposes
GB397717A (en) A process for improving lubricating oils
GB465773A (en) Improvements in or relating to liners and their manufacture
GB507321A (en) Improvements relating to the manufacture of steel
GB476994A (en) Improvements in and relating to permanent magnets and steels for the production thereof