Durable Cold Forging Machinery Round Bar for Precision Metal Processing

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Molding Technics: Casting
• Application: Machinery Parts
• Material: Steel
• Heat Treatment: Normalizing
• Surface Treatment: Rough Machining
• Forging Tolerance: +/-0.5mm
• Standard: GB
• Certification: CE, RoHS, ISO 9001:2000, ISO 9001:2008
• International Standards: ASTM, AISI, DIN, JIS, BS
• Delivery Condition: Quenching+Tempering, Normalizing, Anealing
• Shape: Round Bar, Square, Shaft, Ring, Cylinder
• Delivery Surfaces: Black, Rough Machning Bright, Fine Maching Bright
• Alloy No: 9cr2mo, 18crmimo6, 30Cr2Ni2Mo
• Transport Package: Wooden Cartons
• Specification: Customization
• Trademark: weirun
• Origin: Jiangsu, China
• Production Capacity: 3000 Tons/Month

Product Description

Product Description

Chemical Composition (%):

	C	Si	Mn	P	S	Cr	Mo	Ni	Standard
9Cr2Mo	0.85-0.95	0.25-0.45	0.20-0.35	≤0.025	≤0.025	1.70-2.10	0.20-0.40	≤0.25	GB/T13314-2008
18CrNiMo7-6	0.15-0.21	≤0.4	0.50-0.90	≤0.025	≤0.035	1.50-1.80	0.25-0.35	1.4-1.7	EN 10084-2008
30Cr2Ni2Mo	0.26-0.34	0.17-0.37	0.50-0.80	≤0.020	≤0.020	1.80-2.20	0.30-0.50	1.80-2.20	GB/T3077-2015

Main Products

Company Profile

Jiangsu Weirun Forging Co., Ltd.
Founded in the year 2001, Jiangsu Weirun Forging Co., Ltd. stands as a proud amalgamation of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. Celebrated as one of China's trailblazing enterprises, Weirun specializes in the sophisticated craft of alloy steel smelting and the dynamic production of a vast array of forged products. Our legacy of pioneering innovation and unwavering commitment to premium quality has been our guiding star since inception.
Our focus on excellence is unwavering, as we engage in a multitude of endeavors such as alloy steel smelting, electroslag remelting, forging, and mold crafting. Through the years, we have engineered a comprehensive industrial chain that fluidly integrates processes like material recycling, smelting, electroslag casting, forging, and precision mold machining. We proudly serve both domestic and international markets with unparalleled dedication and excellence.
Our expansive manufacturing facility, sprawling over 60,000 square meters, houses state-of-the-art equipment: three 1-ton electroslag furnaces, plus 3-ton and 10-ton electroslag furnaces; complemented by two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer. We are also home to fully automated electro-hydraulic hammer production lines of 5 tons and 8 tons. Our arsenal includes extensive mechanical processing and heat treatment machinery, advanced spectrometers, and a suite of physical and chemical performance testing devices. With fixed assets valued at 153 million yuan, our industrial output value impressively reaches 300 million yuan. Employing over 200 skilled professionals, including 20 technical experts, we proudly rank among Danyang City’s top fifty enterprises for annual sales and tax contributions.
To accelerate the company's growth trajectory, we have embraced a strategic approach by attracting a diverse pool of technical talents and fostering collaborations with esteemed domestic universities and research institutions. This proactive strategy has led to considerable advancements in technology and innovation, garnering us 5 national authorized invention patents and 3 utility model patents, solidifying our stature as an industry leader.
With a formidable annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are crucial to industries like wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Driven by the philosophy of 'pursuing excellence and building a world brand,' we aspire to harmoniously integrate with the global market and uphold an international brand strategy. Our commitment to international standards is validated by accreditations such as ISO9001, China CCS, France BV, and Germany TUV. As a professional supplier and service provider of forged products, Weirun dedicates itself unwaveringly to professionalism, continuously striving for new heights of excellence. We remain steadfast in our specialized approach, offering unparalleled, high-quality services to our valued customers.

FAQ

• What is the difference between forging and casting?

  Forging: It is the process of transforming a solid from one shape to another. Casting: It is the process of transforming a shapeless liquid metal into a solid with a shape. The so-called casting is the process of casting molten metal into a model to obtain a casting. The casting profession focuses on the metal melting process and the control of processes during the casting process. Forging is a plastic forming process in the solid state, which can be divided into hot processing and cold processing. Forgings include extrusion, drawing, roughening, punching, and so on. Casting is a solid liquid solid process, while forging is a solid to solid process where a solid can change its shape into another shape at high temperatures. There are still differences in the shape process and process of the two.

• How to choose high-quality forgings?

  In the quality inspection of forgings, there are mainly external observation methods and internal inspection methods. The appearance method, as the name suggests, is to observe the appearance of the product, such as the shape, geometric dimensions, surface condition, etc. of the forging, in order to understand whether it meets the standards and whether there are external defects. Specifically, it is to check whether the external dimensions of the forging meet the specifications and whether there are defects on the surface, such as cracks, wrinkles, bubbles, indentations, pits, impurities, scratches, etc. on the surface of the forging. Internal testing mainly involves analyzing the chemical composition, macroscopic and microscopic structures, and mechanical properties of forgings. This inspection process requires the use of specialized instruments for high magnification inspection, with the aim of checking for any phenomena such as fractures and shrinkage within the forging, as well as defects such as dendrites and white spots, disordered flow lines, and throughflow. It also includes the tensile strength, ductility, hardness, plasticity, and heat resistance temperature of the forging.

• What are the characteristics of the forging process for blank forgings?

  The forging process of circular forgings mainly consists of the following processes: pier roughening, elongation, punching, and expanding. The difference between free forging and ring rolling processes is mainly in the process of expanding holes. In the production of ring forgings, free forging is usually used to expand the hole with a horse screw, while ring rolling is mainly used to expand the hole with rolling.