High Quality 38crni3MOV Hot Forging Cylinder for Heavy Machinery Operations

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Model NO.: 38crni3MOV forging
• 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 2001, Jiangsu Weirun Forging Co., Ltd. stands as an esteemed entity in China's industrial landscape, comprising the innovative forces of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As pioneers in the realm of alloy steel smelting and the intricate craft of forging various products, our legacy is steeped in excellence and a commitment to quality.
Our company distinguishes itself through a comprehensive production spectrum, encompassing alloy steel smelting, electroslag remelting, forging, and precision mold manufacturing. Over the years, we have developed a robust and seamless industrial chain that includes material recycling, smelting, electroslag casting, forging, and precision machining for molds, serving both domestic and international markets with precision and dedication.
Spanning an impressive 60,000 square meters, our state-of-the-art factory is equipped with advanced machinery: three 1-ton electroslag furnaces, one 3-ton, and one 10-ton electroslag furnace, supplemented by two 2-ton air hammers, one 1-ton, and one 0.75-ton air hammer. Our mechanized electro-hydraulic hammer production lines, capable of 5 and 8 tons, reflect our technological prowess. We also boast extensive mechanical processing and heat treatment equipment, alongside cutting-edge spectrometers and physical and chemical testing devices. With fixed assets of 153 million yuan and an industrial output value of 300 million yuan, our dedicated team of over 200, including 20 skilled professionals, propels us into the top fifty enterprises for annual sales and tax revenue in Danyang City.
In our relentless pursuit of advancement, Jiangsu Weirun has strategically recruited a diverse array of skilled technical talents. By fostering dynamic partnerships with acclaimed universities and research institutions across the nation, we emphasize technological innovation and acquisition. Our efforts have resulted in securing 5 national invention patents and 3 utility model patents, reinforcing our position as a leader in the industry.
Boasting an annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products serve pivotal sectors such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Adhering to the principle of 'pursuing excellence and building a world brand,' we expedite our integration with global markets and consistently adhere to international brand strategies. With certifications including ISO9001, China CCS, France BV, and Germany TUV, Weirun emerges as a paragon of professionalism and expertise, offering bespoke forged products and exceptional services to our valued clientele.

 

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.