High quality special steel supplier.Old rev.
  • Certified Company

    DNV&ABS
  • Certified Company

    ISO 9001:2008
  • R&D Production

    In China
  • steel for Turbine
    LongHai,Steels of Steam turbine
    High Quality
    Blade of Steam Turbine, Nozzle, Casing, Disc,Rotor,Shaft,Fasteners etc.
  • Longhai,Steels of Power
    High Quality
    We have been supplying power systems for many years and have extensive supply experience.
  • Longhai Steel fo Oil & Gas applications.
    Uses of Steel in Oil and Gas Industry
Markets We Serve
Solutions

Over the past 15 years, we have established partnerships with customers in more than 20 countries around the world, and we have a stable and continuous cooperation. We look forward to establishing partnerships with more partners.

Working Process
Way for Solution

To take a trivial example, which of us ever undertakes laborious physical exercise, except to enjoy a pleasure that has no annoying consequences.

  • 1

    Technical Requirement

    Analysis

    Safety and innovationAnalyze customer needs and develop production processes.

  • 2

    Smelting

    AOD+ESR
    EAF+LF+VD+ESR
    VIM+ESR
    VIM+VAR

    Different smelting type according to different material requirements.

  • 3

    Shaping

    Forging(Press)
    Hot rolling
    Cold rolling
    Drawing

    Idea of pleasure praisings was complete system.

  • 4

    Heat treatment

    Carburizing

    annealing, tempering, normalizing, hardening and tempering, pre-hardening, quench annealing, ageing etc.

Updates
Products
17-4PH/630 Stainless Steel Tube Pipe

17-4PH/630 Stainless Steel Tube Pipe

17-4PH 630 Stainless Steel Tube Pipe

1Cr12Ni3Mo2VN stainless steel Bar

1Cr12Ni3Mo2VN stainless steel Bar

Martensitic stainless steel 1Cr12Ni3Mo2VN Bar is a new type of martensitic stainless steel for the last-stage blades of large-ca...

Martensitic stainless steel Z12CNDV12-03 KT5312AS6 Bar

Martensitic stainless steel Z12CNDV12-03 KT5312AS6 Bar

Martensitic stainless steel Z12CNDV12-03 KT5312AS6 Bar is a new type of martensitic stainless steel for the last-stage blades of...

EN X105CrMo17 Extruded Tube Pipe

EN X105CrMo17 Extruded Tube Pipe

EN X105CrMo17 Extruded Tube Pipe,Hot extrusion, heat treatment,Carbon structural steel, Alloy structural steel, Low alloyed steel, Bearing steel, Stainless steel, Heat-resistant steel, Valve steel

28NiCrMoV8-5(1.6932) ESR Bright Bar

28NiCrMoV8-5(1.6932) ESR Bright Bar

28NiCrMoV8-5(1 6932) steels are provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0 8...

1Cr11Ni2W2MoV|961 Forgings

1Cr11Ni2W2MoV|961 Forgings

1Cr11Ni2W2MoV|961 Forgings