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Meehanite HA

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Journal Articles
Alloy Digest (1957) 6 (2): CI-18.
Published: 01 February 1957
... MEEHANITE HA is a free machining high tensile engineering material designed especially to withstand intermittent heating conditions in service. This type of Meehanite metal resists growth under alternating heating conditions at temperatures up to 1100 deg. F. This datasheet provides information...
Journal Articles
Alloy Digest (2021) 70 (8): CI-84.
Published: 01 August 2021
... Meehanite GE225 is an intermediate-tensile-strength gray cast iron that has a predominantly pearlitic matrix and a minimum tensile strength of 225 MPa (33 ksi), when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter test bars. Compared with the lower strength gray...
Journal Articles
Alloy Digest (2021) 70 (2): CI-78.
Published: 01 February 2021
... Meehanite GC275 is a pearlitic gray cast iron that has a minimum tensile strength of 275 MPa (40 ksi) when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter, test bars. This intermediate-tensile-strength grade has a fine, close-grained structure that is ideal...
Journal Articles
Alloy Digest (2020) 69 (11): CI-75.
Published: 01 November 2020
... Meehanite GB300 is a pearlitic gray cast iron that has a minimum tensile strength of 300 MPa (44 ksi), when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter test bars. This grade exhibits high strength while still maintaining good thermal conductivity and good...
Journal Articles
Alloy Digest (2021) 70 (5): CI-81.
Published: 01 May 2021
... Meehanite GD250 is an intermediate-tensile-strength, pearlitic gray cast iron grade that has a minimum tensile strength of 250 MPa (36 ksi), when determined on test pieces machined from separately cast, 30 mm (1.2 in.) diameter test bars. Owing to its good machinability it is suitable for mass...
Journal Articles
Alloy Digest (1974) 23 (3): CI-42.
Published: 01 March 1974
... ALMANITE W comprises a series of three types of austenitic-martensitic white irons characterized by high hardness and relatively good impact strength. Type W1 has a pearlitic matrix. Type W2 has a martensitic matrix, Type W4 is highly alloyed to provide an austenitic matrix in the as-cast...
Journal Articles
Alloy Digest (1973) 22 (12): CI-41.
Published: 01 December 1973
... removed from service at temperature above 120CPF. Bar #I is alloy steel (25% chrome-12% nickel). Bar #5 is cast in HSV. Note freedom from growth and distortion. DOI: 10.31399/asm.ad.ci0041 Copyright © ASM International® 1996 Heat Treatment: MEEHANITE HSV is used in the as-cast condition which has...
Journal Articles
Alloy Digest (1988) 37 (4): CI-54.
Published: 01 April 1988
... be used in alkali and slightly acid solutions up to 15OOF. It has excellent resistance to 98% + sulfuric acid up to 25OOF. It is serviceable in industrial waters of low acid concentration when not subject to high velocities or abrasion. Specification Equivalents: ASTM: A4874. ANSI: G25.1. Federal: QQ- 1...
Journal Articles
Alloy Digest (1988) 37 (10): CI-56.
Published: 01 October 1988
... CRS MEEHANITE generally has machinability superior to austenitic stainless steels. Weldability: Oxyacetylemweldingisoftenuscdforrepairofdefectsinductile iron castings. Welding is most successful using a ductile iron electrode. Repair of ductile inm castings is complicated by the fact that the only way...
Journal Articles
Alloy Digest (1973) 22 (2): CI-39.
Published: 01 February 1973
... and a speed of about 300 sfpm generally comprise the best combination. Table 2 provides information on tool geometry. Castability: MEEHANITE GF-20 has excellent foundry character- istics, including freedom from hard spots and edges even in comparatively light sections. This contributes to its high as-cast...
Journal Articles
Alloy Digest (2020) 69 (8): CI-72.
Published: 01 August 2020
... Treatment Meehanite GA350 has good hardenability, and it responds to heat treatment in the same way as carbon steels. Low Temperature Annealing for Improving Machinability. Heat slowly to 675 705 °C (1250 1300 °F). Hold for 1 h per 25 mm (1 in.) of maximum section thickness. Furnace cool to 150 °C (300 °F...
Journal Articles
Alloy Digest (1957) 6 (6): CI-19.
Published: 01 June 1957
.... Forms Available: castings. General Characteristics: Applications: Homogeneous dose-grain structure and freedom from internal strains provide maintained accuracy. It has Skid castings, stoker tuyeres and extension plates, sugar retorrs, certain furnace doors, combustion chambers, uniform density...
Journal Articles
Alloy Digest (1958) 7 (9): CI-22.
Published: 01 September 1958
... internal strains provide maintained accuracy. It has uni- form densiy and solidiy throughout all sections, and rherefore the strength properties are not materially af- fected by section changes. This iron may be heat treated to yield greater hardness, strength and toughness. It may also be flame...
Journal Articles
Alloy Digest (1955) 4 (10): CI-12.
Published: 01 October 1955
... by EndnmrnnAllOISDieaZh Upper MonaIair, New Jersey MEEHANITE - GE (Wium Smmgth, Clam Grain hA) m GE ia a med.i.imw~&naigh damping capaciy, self-lubriating propertk, and good mxbinability. It binesthegoodprope&s COmporitiOn: Pby!Jkai conrtanh: carbon (a-l) its ::iE specific graviy 7.16 SilkOn Density, lb./cu.ia 0.258 orha...
Journal Articles
Alloy Digest (1964) 13 (1): CI-32.
Published: 01 January 1964
... Specification Equivalents: ASTM A48 and Al26 ASTM Al59 and A278 ASThI A319 and A438 Fed. QQ-1-652a General Characteristics: Homogeneous close-grain structure and freedom from internal strains provide maintained accuracy. It has uniform density and solidity throughout all sections, and therefore the strength...
Journal Articles
Alloy Digest (1959) 8 (1): CI-25.
Published: 01 January 1959
... of finish is required. Homogeneous close-grain structure and freedom from internal strains provide maintained accuracy. It has uniform densiy and sol&y throughout all sections, and therefore the strength properties are not materially afkted by section changes. This iron may be heat created to yield greater...
Journal Articles
Alloy Digest (1970) 19 (10): CI-36.
Published: 01 October 1970
... ASM International® 1996DOI: 10.31399/asm.ad.ci0036 Heat Treatment: Hardening: Heat to 165OoF. cool in air blast, temper to desired hardness Flame hardening: Heat to 1500-1lOOoF according to thickness of section and air cool. Machinability The as-cast material has a D&her machinabiity rating of 52...
Journal Articles
Alloy Digest (1954) 3 (9): CI-8.
Published: 01 September 1954
..., that is the tendency to break up without creating undue pressure on the top face of the tool, also serve to avoid the generation of high heat, with a consequent lengthening of tool life. General Characteristics: Homogeneous close-grain structure and freedom from internal strains provide maintained accuracy. It has...
Journal Articles
Alloy Digest (1973) 22 (5): CI-40.
Published: 01 May 1973
... per inch of thickness. transfer to a furnace at llK)OoF and hold until entire casting has reached this temperature. then quench in brine. The structure is now austenitic with nodular graphite but no carbides and is used In this condition. Machinability: Machining of ALMANITE WSH is extremely difficult...
Journal Articles
Alloy Digest (1973) 22 (1): CI-38.
Published: 01 January 1973
...: Anneal: Heat to 16000F and furnace cool. This softens the material for machining. Normalize: Heat to 16000F and air cool. After machin- ing, ALMANITE WS should be normalized by heating to 16000F and cooling in air to produce high strength and high hardness. Machinability: ALMANITE WS has excellent...