Premium Steel Square Cylinder with Quenching and Tempering Treatment

• 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.
Established in 2001, Jiangsu Weirun Forging Co., Ltd. proudly stands as a pioneering force in China, combining the expertise of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. Weirun has established itself as one of the earliest enterprises to specialize in the sophisticated smelting of alloy steel and the meticulous manufacturing of various forged products, setting a benchmark for quality and innovation.
Our company excels in a diverse array of production endeavors encompassing alloy steel smelting, electroslag remelting, precision forging, and advanced mold manufacturing. Through years of unwavering dedication, we have perfected a comprehensive industrial chain that seamlessly integrates material recycling, smelting, electroslag casting, forging, and mold precision machining, serving both national and international markets with unparalleled excellence.
Spanning a vast expanse of 60,000 square meters, our state-of-the-art facility is equipped with an impressive array of advanced machinery, including three 1-ton electroslag furnaces, a 3-ton, and a 10-ton electroslag furnace. Our forging capabilities are further enhanced with two 2-ton air hammers, a 1-ton, and a 0.75-ton air hammer, along with fully mechanized electro-hydraulic hammer production lines of 5 tons and 8 tons each. Our robust infrastructure includes comprehensive mechanical processing and sophisticated heat treatment equipment, cutting-edge spectrometers, and various high-precision physical and chemical performance testing devices. With fixed assets valued at 153 million yuan and an industrial output reaching a remarkable 300 million yuan, we employ over 200 dedicated professionals, including more than 20 technical experts. We proudly rank among the top fifty enterprises in Danyang City, celebrated for our impressive annual sales and tax contributions.
In recent years, we have accelerated our commitment to growth and innovation by introducing a wealth of technical talent and actively collaborating with prestigious domestic universities and research institutions. This dynamic approach has fostered a culture of technological advancement and innovation, resulting in the acquisition of 5 nationally recognized invention patents and 3 utility model patents, showcasing our dedication to cutting-edge development and industry leadership.
Boasting an impressive annual production capacity of over 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products find extensive application across a myriad of industries, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Adhering to our core principle of 'pursuing excellence and building a world brand,' we are committed to seamless international market integration and a robust international brand strategy. Our production adheres to the highest international standards, validated by certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a leading professional supplier and service provider of forged products, Weirun is dedicated to unparalleled professionalism, striving continuously for exceptional expertise, and delivering high-quality services to our esteemed 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.