Stainless Steel 304 304L 316 316L 4 Inch SS Concentric Reducer Cold Drawn

Brand Name:HEBEIPENGXIN
Certification:ASME
Model Number:Steel Pipe Reducer ASME B16.11 SS Concentric Reducer , A-304304L, 316316L,6 4 lnch 3000#,Cold Drawn
Minimum Order Quantity:10pieces
Delivery Time:2-10weeks
Payment Terms:T/T
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Address: Tulou Industrial Zone, Xinda highway, Mengcun Hui Autonomous County, Hebei Province
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Steel Pipe Reducer ASME B16.11 SS Concentric Reducer , A-304304L, 316316L,6 4 lnch 3000#,Cold Drawn


Diameter pipe reducer also known as size head, diametral pipe, diametral through. One of the chemical pipe fittings for the connection between two different pipe diameters. According to the shape of different, divided into concentric size head and eccentric size head two kinds. The size head material includes stainless steel size head (304304 l316316l), alloy steel, carbon steel size head, size head material has 20 steel, Q235,Q345,16Mn and so on.


Making seamless head
Size head (diameters) is a kind of pipe fittings for pipe caliber. The forming process usually used is shrinkage pressing, expansion pressing or expansion pressing, and stamping can also be used for some specifications of diameters.
Shrinkage/diameter Expansion Forming
The shrinkage forming process of the size head is to put the tube billet equal to the diameter of the large end of the size head into the forming die, and by pressing along the axial direction of the tube billet, the metal moves along the die cavity and shrinks to form. According to the size of diameters, it can be divided into one pressing forming or multiple pressing forming.
Stamping forming
In addition to the use of steel pipe as raw material to produce the size of the head, part of the size of the head can also be produced by stamping forming process. The shape of the die used for drawing is designed according to the size of the innersurface of the head, and the steel plate after blanking is punched and stretched with the die.
Before the size head is glued, the socket side and the outside of the socket are wiped with dry cloth. When the surface is greasy, it should be wiped with acetone. The following points should be noted:
1. control calibre: DIN (DN10-DN150),3A/IFF (1/2"-6"), ISO (Ф12.7-Ф152.4);) Standards
2. International Industrial Standards: DIN,ISO,SMS,3A,IDF;
3. material: stainless steel 304,316,316 L;
4. quality and use: high-grade polishing equipment inside and outside the head to meet the surface precision requirements; this product is suitable for dairy, food, beer, beverage, pharmaceutical, cosmetics and other industrial fields;
5. external processing: according to user requirements to map, sample processing non-standard products;
6. connection: Clamp (quick) type, welding type, thread (live) type.
Note that the size of the head is also suitable for environmental protection dust removal industry pipe diameter, generally made of steel coil cutting and welding, pipe diameter is different, material
Generally hot rolled coil, the application is very good, can save costs.


Main processing technology
  • Raw materials entering the factory
  • Blank cutting
  • Coiled pipe (only in slotted fittings)
  • Welding (only in seam fittings)
  • heating
  • Compression Molding
  • heat treatment
  • Groove processing
  • surface treatment
  • Finished product inspection
  • Logo protection
  • Warehousing and storage

(Note: there is a pickling and passivation process for stainless steel pipe fittings after groove processing)


Product specificationsDN15-DN2000 (The diameter of the large and small ends of the rolled seam buffer can reach 3000mm)
Material rangeCarbon steel, chromium molybdenum steel, low alloy steel, all kinds of stainless steel
Guarantee of main equipment and tooling

1,5000T Press (mainly used for molding)

2,500T Press (mainly used for molding)

3,315T Press (mainly used for molding)

4,150T Press (mainly used for molding)

5,2 gas heating furnaces

6,1 gas heating furnace

7,1 pipe blanking machine

8,Machining equipment:

  • Lathe: Two C630
  • Lathe:One CW6163C
  • Lathe:One CT61100A
  • Milling machine: One a6232A

9,heat treatment:

  • 1Trolley type fuel oil heat treatment furnace, effective heating area of 8 square meters
  • Trolley type box type resistance furnace RT9-80×1500×60

10,2 sets of sand blasting equipment

11,One set of air compressor and one set of liquid cooling pool

12,One 2.4m plate bending machine

13,14 argon arc welding and manual arc welding machines

14,2 welding rod drying equipment

15,260 sets of die pressing mould for reducer

16,One stainless steel pickling tank

17,One manual mouth grinding machine (for large diameter groove treatment)

18,Two plasma cutting machines


China Stainless Steel 304 304L 316 316L 4 Inch SS Concentric Reducer Cold Drawn supplier

Stainless Steel 304 304L 316 316L 4 Inch SS Concentric Reducer Cold Drawn

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