NPT Thread High Quality Black Malleable Iron Socket And Half Sockets
Gray cast iron – It shows a gray fracture surface consisting of ferrite and dispersed graphite flakes. The fracture surface appears gray because of the predominance of exposed graphite. When the composition of the iron and the cooling rate at solidification are suitable, a substantial portion of the carbon content separates out of the liquid to form flakes of graphite. The fracture path of such iron follows the graphite flakes. Gray cast iron is the result of stable solidification produced at slow cooling. It has several unique properties which are derived from the existence of flake graphite in the microstructure. It possesses high compressing strength, fatigue resistance and wear resistance. It is relatively soft and can be machined and welded easily. It has hardness conducive to good wear resistance. It resists galling under boundary-lubrication conditions. It has very good properties for use in vibration damping or moderate thermal shock applications. It is used for engine cylinder blocks, gears, flywheels, water pipes, brake discs, and machine tool structures etc.
Outline of black malleable iron socket
Material | Malleable iron |
Standard | Thread: ISO 7/1 |
Dimension | ISO 49, DIN 2950,EN10242 |
Chemical property | (C %2.4-2.9), (Si %1.4-1.9), (Mn %0.4-0.65), (P% <0.1), (S% <0.2%) |
Physical property | Tensile strength>=350Mpa,Elongation>=10% Hardness<=150HB |
Testing pressure | 2.5Mpa |
Working pressure | 1.6Mpa |
Type | Beaded with ribs or banded with ribs |
Beaded without ribs or banded without ribs | |
Round/square | |
Surface | Galvanized/ no galvanized |
Color | White/black |
Model | Elbow, Tees, Crosses, Bends, Unions, Bushings, Lateral Braches, Sockets, Nipples, Hexagon/Round, Caps, Plugs, Locknuts, Flanges ,Side Outlet Tees, Side Outlet Elbows and etc |
Connection | Male, Female |
Shape | Equal, Reducing |
Certificate | BSI,ANAB,ISO9001,FM,UL |
Application | Suitable for pipe connect of steam, air, gas, oil and so on |
Buyer’s drawings or designs are available | |
Package | Cartons without pallet |
Cartons with pallet | |
Double woven bags | |
Or as buyer’s requirements | |
Delivery details | According to the quantities and specifications of each order |
Normal delivery time is from 30 to 45 days after receiving the deposit |
A&Q
A: How about the surface of black malleable iron socket ?
B: Smooth surface without any sand hole
A: How about the zinc coating ?
Q: avg. thickness is higher than 86 um specified in ASME, EN(70um), DIN(70um), SI(78um)
A: What's the outlet dimension ?
Q: Forged high pressure socket outlet dimension is from 1/8 "~6".
Look up table :
Size | Inch | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 11/4 |
mm | 6 | 8 | 10 | 15 | 20 | 25 | 32 | |
Dim. (mm) | A | 24.2 | 26.9 | 29.5 | 34.0 | 38.6 | 42.4 | 49.0 |
Size | Inch | 11/2 | 2 | 21/2 | 3 | 4 | 5 | 6 |
mm | 40 | 50 | 65 | 80 | 100 | 125 | 150 | |
Dim. (mm) | A | 54.6 | 64.3 | 73.2 | 80.8 | 93.7 | 95 | 105 |