34CrNi3Mo Carbon Structure Steel Ring Forging Steel Bar

• 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. As one of the pioneering enterprises in China, Weirun specializes in the intricate art of alloy steel smelting and the dynamic manufacturing of an extensive range of forged products. Our legacy of innovation and commitment to quality has been unwavering since our inception.
With a focus on excellence, our company is primarily involved in a diverse array of projects, including alloy steel smelting, electroslag remelting, forging, and mold manufacturing. Over the years, we have meticulously crafted a comprehensive industrial chain that seamlessly integrates material recycling, smelting, electroslag casting, forging, and the precision machining of molds, serving both domestic and international markets with unmatched dedication.
Our expansive manufacturing facility spans an impressive 60,000 square meters, housing an array of cutting-edge equipment: three 1-ton electroslag furnaces, a 3-ton, and a 10-ton electroslag furnace; complemented by two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer. Additionally, we boast fully automated electro-hydraulic hammer production lines of 5 tons and 8 tons. Our arsenal includes extensive mechanical processing and heat treatment equipment, advanced spectrometers, and a suite of testing devices for physical and chemical performance. With fixed assets valued at 153 million yuan, we achieve an impressive industrial output value of 300 million yuan. Employing over 200 skilled professionals, including 20 experts with technical prowess, we proudly rank among the top fifty enterprises in Danyang City for annual sales and tax contributions.
To propel the company's growth trajectory, we have recently embraced a strategy of attracting diverse technical talents and fostering collaborations with esteemed domestic universities and research institutions. This proactive approach has led to significant advancements in technology and innovation, earning us 5 national authorized invention patents and 3 utility model patents, solidifying our position as a leader in the industry.
Boasting a formidable annual production capacity of over 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are integral to various industries such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Committed to the philosophy of 'pursuing excellence and building a world brand,' we strive to seamlessly integrate with the global market and uphold an international brand strategy. Our adherence 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 unwaveringly dedicates itself to professionalism, continuously aiming for new heights of expertise. We are 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.