Small Size Npt 90 Degree Malleable Iron Elbow Black Color High Accuracy

threaded pipe connectors 1/2 inch npt 90 degree elbow Malleable Iron Elbow

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 .