Hunan Dinghan New Material Technology Co., LTD

A professional manufacturer of high-temperature alloy accessories and corrosion-resistant alloy accessories for high-end valves

SMELTING - FORGING - HEAT TREATMENT - MACHINING - HOT EXTRUSION are our daily tasks. We provide customers with a wide range of sizes of Forged Bars, Rods, Flanges, Valve Parts,Pipe Fittings. Forging shapes are available in discs, hubs,strips, rings,shafts,sleeves,hollows,cylinders,flats,hexes,rounds,plates and other customized shapes.
We also often provide value-added services based on your drawings, such as rough machining, heat treatment, cutting and machining of finished or semi-finished products of specified sizes.

Our factory has rich experience and proprietary technology in Vacuum Smelting, Non-Vacuum Smelting, Electroslag Casting, Forging, and Cold Rolling processes. The introduction of VIM (Vacuum Induction Melting), ESR (Electro Slag Remelting), Annealing Furnace and other smelting technology equipment can meet various special process needs. Technicians have decades of experience in specialty metallurgy. Dinghan has formulated supply standards in accordance with international advanced standards and equipped with advanced physical and chemical testing equipment. Complete testing equipment enables systematic chemical element analysis of raw materials, and alloys and mechanical property testing of alloys and steels. They ensure the stable high quality of Dinghan products. Leading products include High-Temperature alloys, Nickel Based Corrosion Resistant, Precision alloys, Special stainless steel, etc.
DINGSCO, a cutting-edge technology company, is using its wisdom and focus to demonstrate absolute fashion.

Our mission is to provide our customers only with the best quality products. As an ISO9001:2015 and PED 2014/68/EU, API 6A certified manufacturer, we fully understand that it is impossible for us to provide high-quality products without strict Quality Control at every stage of production.
We are constantly working to identify nonconforming products at every stage of production in our factory. We know that "The cost of Quality exceeds The Cost of Failure".
Our quality inspection team, regularly calibrated equipment and measuring instruments, and third-party inspection agencies are the guarantee for us to provide high-quality products.
We provide EN10204 Type 3.1 certificates and test inspection report for every order. We also welcome third-party testing agencies such as BV, SGS and others come to our factory for inspections.

Our QC activities and test methods:

Chemical Analysis - ASTM E1473
Tensile Test - ASTM E8
Hardness Test - ASTM E10,E18
PMI Examination - DINGHAN SOP
Ultrasonic NDT - BS EN 10228
Liquid Penetrant NDT - ASTM E165
Dimensional and Inspection - DINGHAN SOP
Roughness Test - DINGHAN SOP
Impact Test -ASTM E23

Low Temperature Impact Test - ASTM E23
Creep and Stress Rupture Test - ASTM E139
Hydrogen Induced Cracking Test - NACE TM-0284 *
Inter Granular Corrosion Test - ASTM A262 *
Sulfide Stress Corrosion Cracking Test - NACE TM-0177 *
Pitting and Crevice Corrosion Test - ASTM G48 *
Macro Etching Test - ASTM E340 *
Grain Size Test - ASTM E112 *
* Done by state own third party laboratory

SCIENCE AND TECHNOLOGY INNOVATION STRATEGY
 

Pay attention to customer needs, implement product innovation, and further leverage the company's full range of product types and material grades to provide customers with one-stop service; continuous improvement, implementation of material, process, and equipment optimization, and continue to meet customers with multiple varieties, short delivery periods, and high quality requirements create value for customers.

Our company has a professional team of senior engineers who, with their rich industry experience and superb technical capabilities, are able to implement precise quality inspections while ensuring production efficiency. Our engineers use advanced testing equipment and scientific quality management systems to conduct strict quality control on products to ensure that each product meets industry standards and customer requirements. Their expertise and attention to detail keep our product quality at the leading level in the industry.

At the same time, our business team is composed of experienced industry experts who have deep market insights and professional knowledge and can provide you with detailed and accurate industry information. Whether it is market dynamics, industry trends, or product information, our business team can provide you with comprehensive and timely information services to help you make more informed business decisions.

Through this refined division of labor, our teams work together to ensure that every link from production to sales operates efficiently. Our engineering team and business team work closely together to promote the company's development and provide customers with high-quality products and excellent services.