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1/2 Inch Black Malleable Iron Pipe Fittings Hex Nipple Casting For Oil And Gas

1/2 Inch Black Malleable Iron Pipe Fittings Hex Nipple Casting For Oil And Gas

1/2 Inch Black Malleable Iron Pipe Fittings Hex Nipple Casting For Oil And Gas

Product Details:

Place of Origin: China
Brand Name: Leyon
Certification: FM/UL
Model Number: black pipe nipples

Payment & Shipping Terms:

Minimum Order Quantity: 100piece
Price: Negotiable
Packaging Details: 200piece/carton
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 10000piece/week
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Detailed Product Description
Color: Galvanized Material: Malleable Iron
Technics: Casting Size: 1/8”-6“ Black Pipe Nipples
Standard: ANSI,BS,DIN Head Code: Square
Item: Black Pipe Nipples

Synoptic table  of black pipe Hex. nipples

Size Inch 1/8 1/4 3/8 1/2 3/4 1 11/4
mm 6 8 10 15 20 25 32
A 29 36 38 44 47 53 57
Size Inch 11/2 2 21/2 3 4 5 6
mm 40 50 65 80 100 125 150
A 59 68 75 83 95 103 110


1/2 inch Black Malleable Iron Pipe Hex. Nipple Casting Technics for oil and gas

  1. DISA from Denmark ,DJ AMF Japan,SINTOKOGIO Japan have been applied into the malleable iron bushing to guarantee the quality of products. 
  2. The material’s quality of the cast steel sample needs to be examined by Oxford Instruments’s.
  3. High heat value natural gas annealing oven will be applied to control the annealing operation and raise the material’s physical performance
  4. After air-tightness test,each bushing will be in the condition of no leakage.
  5. We can strictly control the calibre,parallelism, angle and tooth type of the thread for every pipe fitting flange,because all of them need to pass the plug gauge test. 

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 .


Correlation table :

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
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

1/2 Inch Black Malleable Iron Pipe Fittings Hex Nipple Casting For Oil And Gas

Contact Details
Leyon steel Co., Ltd

Contact Person: Anne

Tel: +86 13524796263

Send your inquiry directly to us (0 / 3000)


Address: Room401,BuildingD,No.228 Meifu Road,Minhang District, Shanghai, China