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About Us
Founded on April 23, 2004, Sichuan Liuhe Special Metal Materials Co., Ltd. (hereinafter referred to as the "Liuhe Special Materials" or "Company") is located at High-tech Zone, Jiangyou City, Sichuan Province, with the registered capital of RMB 199 million and total asset of RMB 5 billion. The Company is a mixed-ownership enterprise with share contribution from Mianyang Science and Technology Development Group Co., Ltd. The Company covers a total area of 296,000 square meters and employs more than 900 staff members.
Liuhe Special Materials is a national high-tech enterprise, possessing strong R&D and manufacturing capabilities in special metal materials and alloys. The Company is equipped with first-class full-process production, manufacturing and inspection equipment covering refining, remelting, forging, rolling, heat treatment and machining. Its products mainly include forged and rolled bars (including square and flat bars), forgings, machined parts (blanks) and equipment assemblies, which are widely applied in high-end major equipment fields, such as steam turbines, gas turbines, aviation & aerospace, marine vessels, nuclear power and petrochemicals. With premium materials, the Company supports the development of national power, energy and power industries.
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GH4698 is Ni-Cr-based
Precipitation Hardened Wrought Superalloy
Featuring high endurance strength and tension
within the range of 550℃-800℃Good plasticity and comprehensive performance
Within the range of 550℃-800℃
Featuring high endurance strength and tensionGH4698
Hot-rolled bars
It is suitable for manufacturing engine turbine disks,
compressor disks, load bearing rings and fasteners.
It is also suitable for manufacturing large-specification turbine disks
and other components for marine gas turbines.
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G50 is a low alloy ultra-high strength steel
G50 features low cost and high strength and toughness.Its strengthening is mainly achieved through solid solution
strengthening by carbon content, and dispersion strengthening
through the formation of carbides by carbon together with chromium,
molybdenum and niobium, thereby improving the steel strengthG50
Bars and forgings
It is used to manufacture the components, such as weapon warhead casings.
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S-04 is a martensitic aging stainless steel with excellent performance,
possessing both the corrosion resistance of stainless steel and also
the strength and toughness comparable to 18Ni martensitic aging steels.It possesses good strength-toughness,
corrosion-resistance and oxidation-resistance
at high temperature,
and good plasticity and toughness at low temperature.S-04
00Cr13Co9Ni5Mo5
It is suitable for manufacturing key load bearing components of
liquid oxygen/kerosene high-pressure staged-combustion engines
Such as: engine oxygen pump housings and liquid oxygen main valve housings,
various key structural components of aero engines,
centrifugal wheels of turbine oxygen pumps
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316H is Cr- Ni-Mo
Austenitic Stainless Steel
Featuring the excellent high-temperature strength,
oxidative resistance and corrosion resistanceIt has a relatively low coefficient of thermal expansion
at high temperatures, good dimensional stability,
and resistance to pitting corrosion and intergranular corrosion.316H
Bars
It is suitable for high-temperature applications in fields
such as chemical industry, furnaces and heat exchangers,
seawater desalination, shipbuilding and salt chemical industry.
Product
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Stainless Steel
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Stainless steel is the abbreviation for stainless acid resistant steel. Steel that resists weakly corrosive media (such as air, steam and water), or possesses stainless properties, is called stainless steel. Our main products are: austenitic stainless steel, such as 1Mn18Cr18N, 50Mn18Cr5, 304, etc.; martensitic stainless steel, such as 13Cr9Mo2Co1NiVNbNB and 1Cr12Ni2WMoVNb; precipitation hardened stainless steel, such as 05Cr17Ni4Cu4Nb and 04Cr15Ni7Cu2MoNbVN; duplex stainless steel, such as 022Cr25Ni6Mo2N; S series semi-martensitic precipitation hardened stainless steel, such as 0Cr14Ni7Mo (S 08); and ferritic stainless steel, such as 1Cr17. These products are commonly used in key components of aero engines, gas turbines, steam turbines, and in the petrochemical field.
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Alloy Structural Steel
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Alloy structural steel refers to steel used for mechanical parts and various engineering components containing one or several alloying elements in certain amounts Our main products are: 30CrMnSiA, 35CrMnSiA, 30CrMnSiNi2A, 18Cr2Ni4WA, 65Si2MnWE alloy structural steel, and they are mainly used for manufacturing high strength components.
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Superalloy
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Superalloy refers to a class of iron, nickel or cobalt based metal materials, capable of long-term service under high temperatures above 600℃ and certain stress, and it possesses high temperature resistance, good oxidation and corrosion resistance, good anti-fatigue properties, fracture toughness and other comprehensive properties. Our company's main superalloy products include: Inconel 718 forged and hot rolled round bars applied to gas turbine, petroleum, aerospace; GH4099 forged bars applied to aerospace, GH4080A flat bars and forged bars; Incoloy 901 stepped shaft forgings applied to steam turbines as well as other various superalloy forged bars, rolled rounds and forgings for aviation, aerospace and gas turbine applications.
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Tool Steel
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Mold steel is a type of steel used to manufacture cold-punching molds, hot forging molds, mold casting molds, etc. Our main products are: 4Cr5MoSiV1 and 4Cr5MoSiV series hot-work mold steel; Cr12MoV1 series cold-work mold steel; 4Cr13V series, Cr12NiMoVN series plastic mold steel. They are mainly used for hot forging molds, mold casting molds, extrusion molds, fine punching molds, stretching molds, hemming molds, automotive lamp molds, injection molds, and other molds having high wear resistance requirements.
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Ultra-high Strength Steel
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Ultra-high strength steel is a type of alloy steel used for manufacturing the structural components subjected to high stress Our main products are: 30Cr3SiNiMoWNb(G31), 28CrMnSiNi4MoNb(G50) series medium carbon and low alloy ultra-high strength steel; 16Co14Ni10Cr2MoE (AF1410), 23Co14Ni1Cr3MoE (A100) series ultra-high strength secondary hardened steel; 0Cr13Ni8Mo2Al (PH13 8Mo), 015Cr11Ni11MoTi (S46500) series precipitation hardened high strength stainless steel. Those products are mainly used in aviation & aerospace, nuclear reactors, and petrochemical fields.
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Energy
Energy
Energy steel is a key foundational material for the energy industry, providing strong support for the implementation of China's energy strategy relying on its excellent strength and toughness, corrosion resistance, and weldability. Energy is an important foundation for national economic development. With the depletion of traditional onshore and coastal energy resources and the rapid development of clean energy (such as wind power and hydropower), energy equipment is gradually shifting towards deep sea oil and gas extraction, long distance transportation, high temperature and high pressure petroleum processing, and large scale development, placing stringent requirements on special steel in this field for large size, corrosion resistance, high strength, high toughness, weldability, long service life, and high reliability.
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Aviation & Aerospace
AEROSPACE
Aviation & aerospace structural materials are indispensable supporting materials for national economic development and national defense construction, serving as core materials to support high-end equipment and major engineering needs, and playing a decisive role in strategic fields, such as aviation & aerospace and weapons equipment. High temperature and special metal structural materials are indispensable key materials in high-end equipment, such as aero engines, heavy-duty gas turbines, ultra-supercritical thermal power units, and major scientific devices.
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Tooling & Molds
Tool die
Tooling & molds are called "the mother of modern industry", which illustrates their importance and indelible contribution to modern industry. Tooling & mold steel is the most important component of molds and the most widely used material among mold materials. It serves as a key material carrier and technical foundation for the mold manufacturing industry, and its types, specifications and quality determine the performance, service life and manufacturing cycle of molds.
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Oil & Gas
Oil gas
Oil and gas steel is mainly used in petroleum and natural gas extraction and transportation processes. With the development of the global oil and gas industry, extraction faces ultra-deep, high temperature, high pressure, and harsh development environments, placing higher requirements on the application of high end special steel for oil and gas
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Research & Development
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Research & Development
The Company possesses the complete equipment for clean steel smelting, forging, rolling, forming and machining, heat treatment, as well as advanced testing and inspection equipment for metallic materials. The Company has developed into an important production base in China for steam turbine materials and is also the first enterprise in China to achieve a full process chain from smelting, forging and heat treatment to blade machining.
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Manufacturing
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Manufacturing
The Company possesses the complete equipment for clean steel smelting, forging, rolling, forming and machining, heat treatment, as well as advanced testing and inspection equipment for metallic materials. The Company has developed into an important production base in China for steam turbine materials and is also the first enterprise in China to achieve a full process chain from smelting, forging and heat treatment to blade machining.
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Certificates & Honors
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Certificates & Honors
The Company possesses the complete equipment for clean steel smelting, forging, rolling, forming and machining, heat treatment, as well as advanced testing and inspection equipment for metallic materials. The Company has developed into an important production base in China for steam turbine materials and is also the first enterprise in China to achieve a full process chain from smelting, forging and heat treatment to blade machining.
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- Company News/
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- 07 / 01 / 2026
创新引领发展！六合特材斩获双料百强荣誉
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在2025年四川企业技术创新发展大会上四川六合特种金属材料股份有限公司荣获“2025年四川企业技术创新能力百强”第43位及“2025年四川企业发明专利拥有量百强”第21位两项重磅荣誉。
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- 27 / 10 / 2025
六合特材荣登 2025 绵阳企业 50 强榜单
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10 月 24 日，2025 绵阳企业 50 强发布会在四川绵阳工业园举行，四川六合特种金属材料股份有限公司（简称 “六合特材”）凭借特种金属材料领域的技术突破、稳健经营与产业贡献，成功入选，成为先进材料产业标杆。
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