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Application and Grade of Gray Iron

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Application and Grade of Gray Iron

Application and Grade of Gray Iron

 

Property: Gray cast iron has excellent cutting and machining performance, casting performance, magnetic permeability, good wear resistance, high compressive strength but with low toughness, no forgeability, poor weldability.

 

Application:

 

1. It is used to manufacture some simple castings that only bear light loads, such as covers, trays, oil pans, handwheels, hand frames, bottom plates, handles and ingot molds, blast furnace counterweights in steel processing equipment, heavy steel hammers, etc.

2. Suitable for manufacturing track plates, cylinder liners, pump bodies, valve bodies, gear boxes, gears, scribing plates, machine bed, column, cylinder and piston (steam) oil piston rings, pistons, etc.

3. It is suitable for the manufacture of castings that are subject to high exaggeration stress and require high airtightness, such as heavy machine bed, gears, cams, large engine crankshafts, cylinder blocks, high pressure cylinders, and rolling mill stands.
4. It is used to manufacture large-sized machines such as lathes, punching machines and other heavy machinery, rolling skateboards, rollers, coking columns, cylinder mixer rings, support wheel seats, etc.

 

GRADES AND SPECIFICATION FOR CAST (GREY) IRON

 

Country Specification Designation 150 180 200 220 250 260 300 350
India IS 210 1978 FG 150 -- 200 -- 250 -- 300 350
United Kingdom BS 1452 1990 Grade 150 180 200 220 250 -- 300 350
USA ANS/ASTM A48-83 Grade 20A 25A 30A -- 35A 40A 45A 50A
Germany DIN 1691 1985 GG 15 -- 20 -- 25 -- 30 35
France NFA 32-101-1987 FGL 150 -- 200 -- 250 -- 300 350
Italy UNI 5007 1969 G 15 -- 20 -- 25 -- 30 35
Japan JIS G5501 1981 FC 150 -- 200 -- 250 -- 300 250
Russia GOST 1412 1979 Sch 15 18 20 -- 25 -- 30 35
International ISO 185-1988 Grade 150 -- 200 -- 250 -- 300 350
Hardness BHN     136-167   159-194   180-222   202-247 227-278

 

latest company news about Application and Grade of Gray Iron  0

Pub Time : 2018-11-06 22:09:54 >> News list
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