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Leyon group work in piping system industry over 23 years. Our main product including malleable pipe fitting, ductile iron groove pipe fitting, ductile iron threaded pipe fittings, carbon steel threaded pipe fittings, clamps, pipe nipple , Stainless steel pipe fittings, stainless steel valve.
Products Description for black malleable iron pipe fittings
The full automatic produce-lines we introduced from DISA Denmark, DJ and SINTOKOGIO Japan
have been a great improvement on black malleable iron pipe fittings.
The spectrometer of Oxford Instruments has applied to test the quality of
black malleable iron pipe fittings.
Higher heating value gas annealing furnace plays a decisive role on
improving material physical characteristics of black malleable iron pipe fittings.
Through airtight test, the quality of every black malleable iron pipe fittings can be ensured.
Strict control of black malleable iron pipe fittings and the size of the thread, to ensure accuracy.
The standard size of black malleable iron pipe fittings is from 1/8” to 4”.
Good toughness ensure long using life for black malleable iron pipe fittings.
There is no any sand hole on surface of black malleable iron pipe fittings.
The Attribute definition list
Size | Inch | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 11/4 | 11/2 |
mm | 6 | 8 | 10 | 15 | 20 | 25 | 32 | 40 | |
Dim. (mm) |
A | 19 | 21 | 25 | 28 | 33 | 38 | 45 | 50 |
Size | Inch | 2 | 21/2 | 3 | 4 | 5 | 6 | ||
mm | 50 | 65 | 80 | 100 | 125 | 150 | |||
Dim. (mm) |
A | 50 | 69 | 78 | 96 | 115 | 1301 |
Size | Inch | 3/8X1/4 | 1/2x1/4 | 1/2x3/8 | 3/4x3/8 | 3/4x1/2 |
mm | 10X8 | 15X8 | 15X10 | 20X10 | 20X15 | |
Dim. (mm) |
A | 23 | 26 | 26 | 28 | 30 |
B | 23 | 26 | 26 | 28 | 31 | |
Size | Inch | 1x1/2 | 1x3/4 | 11/4x1/2 | 11/4x3/4 | 11/4x1 |
mm | 25X15 | 25X20 | 32X15 | 32X20 | 32x25 | |
Dim. (mm) |
A | 32 | 35 | 34 | 36 | 40 |
B | 34 | 36 | 38 | 41 | 42 |
Size | Inch | 11/2X1/2 | 11/2x3/4 | 11/2x1 | 11/2x11/4 | 2x1/2 |
mm | 40X15 | 15X8 | 40X25 | 40X32 | 50X15 | |
Dim. (mm) |
A | 36 | 39 | 42 | 46 | 38 |
B | 42 | 44 | 46 | 28 | 48 | |
Size | Inch | 2x3/4 | 2x1 | 2x11/4 | 2x11/2 | 21/2x1 |
mm | 50X20 | 50X25 | 50X32 | 50X40 | 65x25 | |
Dim. (mm) |
A | 40 | 44 | 56 | 52 | 56 |
B | 50 | 52 | 58 | 55 | 63 |
Size | Inch | 21/2X11/2 | 3x21/2 | 21/2x2 | 3x11/2 |
mm | 65X40 | 80X65 | 65X50 | 80X40 | |
Dim. (mm) |
A | 64 | 82 | 61 | 58 |
B | 69 | 85 | 66 | 72 | |
Size | Inch | 3x2 | 4x21/2 | 4X3 | |
mm | 80X50 | 100X65 | 100X80 | ||
Dim. (mm) |
A | 73 | 78 | 84 | |
B | 78 | 90 | 92 |
Visual communication of Maleable Iron Pipe Fittings
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 |
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 |
What’s the different of ductile iron , gray iron and malleable cast iron ?
The characteristic of ductile iron is very tough, graphite is in the form of a ball.
The feature of gray iron is very brittle , graphite is in the form of strip .
The particularity of malleable cast iron is graphite is a group of flocculent tiles .
So the ductile iron is hardest , malleable cast iron is harder than gray iron .
Why the the toughness of them is different ?
The big reason is time of annealing . If it annealing long time , then the cost also is higher and the quality also is better .