ASTM DIN Standard High-Pressure Boiler Piping Fitting,Forged Tube High Quality

     ASTM DIN Standard High-Pressure Boiler Piping Fitting,Forged Tube High Quality

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Process procedure:

Forging process flow quality control: Raw material steel ingot into warehouse(test the chemical content) → Cutting→ Heating(Furnace temperture test) → Heat treatment after forging(Furnace temperture test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal diamention, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment

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According to different material,Mandrel bar is used for various seamless pipe perforating,

Die block steel mandrel bar is used for stainless steel pipe,normal high alloy steel mandrel bar is used for alloy steel pipe.

Advantage:

1.High-precision dimensional tolerance;

2.Excellent mechanical properties;

3.Produce different dimension based on customer’s requirements;

4.Advanced manufacture equipments and inspection devices;

5.Excellent technical personality;

6.Control the production procedure strictly;

7.Pay attention on the package protection;

8.Quality full service.