GB359423A - Improvements in the production of alloy steel castings - Google Patents

Improvements in the production of alloy steel castings

Info

Publication number
GB359423A
GB359423A GB1780430A GB1780430A GB359423A GB 359423 A GB359423 A GB 359423A GB 1780430 A GB1780430 A GB 1780430A GB 1780430 A GB1780430 A GB 1780430A GB 359423 A GB359423 A GB 359423A
Authority
GB
United Kingdom
Prior art keywords
production
alloy steel
steel castings
nitrogenized
molybdenum
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
GB1780430A
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.)
SHEEPBRIDGE STOKES CENTRIFUGAL
Original Assignee
SHEEPBRIDGE STOKES CENTRIFUGAL
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 SHEEPBRIDGE STOKES CENTRIFUGAL filed Critical SHEEPBRIDGE STOKES CENTRIFUGAL
Priority to GB1780430A priority Critical patent/GB359423A/en
Publication of GB359423A publication Critical patent/GB359423A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/02—Pretreatment of the material to be coated
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

Alloy steels containing manganese, chromium, nickel, cobalt, vanadium, molybdenum, tungsten and zirconium are cast centrifugally and then nitrogenized by being heated to 480-580 DEG C. in a stream of anhydrous ammonia gas. Before being nitrogenized, the casting may be quenched in oil at 820-920 DEG C. and then tempered at 300-700 DEG C. A steel containing 0,15-0,65 per cent of carbon, 0,1-0,4 of silicon, 0,4-0,75 of manganese, 1,0-1,5 of aluminium, 0,9-1,75 of chromium, and 0,1-0,75 of molybdenum is referred to. Specifications 174,580, 243,613, and 272,182, [all in Class 82 (i), Metals, Extracting &c.], are referred to.
GB1780430A 1930-06-10 1930-06-10 Improvements in the production of alloy steel castings Expired GB359423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1780430A GB359423A (en) 1930-06-10 1930-06-10 Improvements in the production of alloy steel castings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1780430A GB359423A (en) 1930-06-10 1930-06-10 Improvements in the production of alloy steel castings

Publications (1)

Publication Number Publication Date
GB359423A true GB359423A (en) 1931-10-12

Family

ID=10101504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1780430A Expired GB359423A (en) 1930-06-10 1930-06-10 Improvements in the production of alloy steel castings

Country Status (1)

Country Link
GB (1) GB359423A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148941A (en) * 1983-09-15 1985-06-05 Welsh Nat School Med Improvements in and relating to steel castings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148941A (en) * 1983-09-15 1985-06-05 Welsh Nat School Med Improvements in and relating to steel castings

Similar Documents

Publication Publication Date Title
GB359423A (en) Improvements in the production of alloy steel castings
GB371334A (en) Process for improving the mechanical properties of ferro-nickelchromium alloys
GB350048A (en) Improvements in the manufacture of steel
GB703911A (en) Alloy of iron, nickel and molybdenum
GB342868A (en) Improvements relating to sulphur resisting alloys
GB282744A (en) Improved manufacture of steel
GB353459A (en) Improvements in or relating to iron, chromium and nickel alloys
GB502196A (en) Improvements in the manufacture of gear wheels from alloy steels
GB295315A (en) Manufacture of iron and steel insensitive to cold shortness, blue shortness and ageing
GB342335A (en) A new or improved composition of a metal for casting purposes
GB157224A (en) Improved process of making steel castings
GB378508A (en) Improvements relating to cast iron
GB293764A (en) Improvements in or relating to the manufacture of steels and castings
GB500200A (en) Steel alloy
GB380805A (en) Improvements relating to stainless chromium-nickel steel alloys
GB511735A (en) Improvements in and relating to the manufacture of seamless, drumlike high pressure containers with a flanged end
GB217885A (en) Refined cast iron
GB312349A (en) Improvements in the manufacture of articles hardened by nitrogenisation
GB366511A (en) Corrosion resistant alloys
GB245792A (en) Improved steel alloys
GB419621A (en) Improvements in or relating to alloy steels, particularly for colddrawing dies
GB550621A (en) Improvements in and relating to gear pumps
GB279414A (en) Improvements in and relating to chill cast iron alloys
GB391848A (en) Process for the production of chromium aluminium steels
GB273575A (en) Improvements relating to the production of rollers for tube rolling mechanisms