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Confidence stems from the strength, and credibility casts brand!

We are a specialized forged flange and forging manufacturer which has been audited and approved by ISO9001 QMS, accredited by German TUV AD-WO/TRD100, European PED.

We also accept the 3rd Party Inspection to our factory for the inspection of our products.

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Raw Material

Quality is the life of enterprise! The raw material is most important for the quality of product.

We purchase the raw material of flange from three major steel companies in China:

  • a. The stainless steel and alloy steel are purchased from Taiyuan Iron and Steel Group.
  • b. The carbon steel and low temperature steel are purchased from Baotou Iron and Steel Group.
  • c. The special steel such as duplex stainless steel, super stainless steel and nickel-based alloy from Shanghai Baosteel Group.
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Technical Data

Dimensions of Ring-Joint Facings for RTJ Flanges

Unit: mm Nominal Size Diameter of Raised Portion, K Groove Dimensions Class 600 NPS Class 900 NPS Class 1500 NPS Class 2500 NPS Class 600 NPS Class 900 NPS Class 1500 NPS Class 2500 NPS Groove Number Pitch Diameter, P Depth, E Width, F Radius at Bottom, R  1/2 _ _ _ 51.0 R11 34.14 5.54 7.14 0.8 _ _ Continue Reading

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ASME B36.10 & 36.19 PIPE OUTSIDE DIAMETER & WALL THICKNESS SCHEDULE

Unit: mm NPS (in) OD SCH. 10S SCH. 40S SCH. 80S SCH. 10 SCH. 20 SCH. 30 STD SCH. 40 SCH. XS SCH. 60 SCH. 80 SCH. 100 SCH. 120 SCH. 140 SCH. 160 SCH. XXS 0.5 21.3 2.11 2.77 3.73 2.11 _ 2.41 2.77 2.77 3.73 _ 3.73 _ _ _ 4.78 7.47 0.75 26.7 2.11 2.87 3.91 2.11 Continue Reading

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SPECIFICATION FOR NACE MR0175

5.1. Carbon steel plates (including plates for heads) The following requirements shall apply to pressure vessels and heat exchangers fabricated ofunalloyed carbon steel.   5.1.1. Manufacturing process The plates shall be produced by a low sulphur and low phosphorus refining process such as inan electric furnace, with double deslagging, or in a basic oxygen furnace. The steel shall be vacuumdegassed Continue Reading

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Excellence. It is the foundation of everything we do.