Precision Engineered Low Alloy Normalizing Steel Cylinder Forgings

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Model NO.: 38crni3MOV 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. stands as a trailblazer in the alloy steel smelting and forging industry in China. As a strategic union of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., we possess a rich legacy as one of the country's pioneering enterprises in producing a wide array of forged products. Our foundation is deeply rooted in innovation and excellence, setting the benchmark in the industry.
At the helm of alloy steel smelting, electroslag remelting, forging, and mold manufacturing, Jiangsu Weirun leads the industry with pride. Years of dynamic progress have resulted in a comprehensive industrial chain that seamlessly weaves material recycling, smelting, electroslag casting, forging, and precision mold machining across both domestic and international landscapes. Our unwavering dedication lies in delivering unparalleled quality and service.
Encompassing an expansive 60,000 square meters, our cutting-edge facility boasts advanced electroslag furnaces, including three 1-ton units, one 3-ton unit, and a formidable 10-ton unit. Our forging operations are strengthened by two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer, complemented by mechanized electro-hydraulic hammer lines of 5 and 8 tons. Our state-of-the-art mechanical processing and heat treatment equipment, along with spectrometers and a comprehensive array of testing devices, bolster our formidable industrial output of 300 million yuan. This remarkable performance is supported by fixed assets of 153 million yuan and a skilled team of over 200 professionals, including 20 technical experts. Proudly ranked among Danyang City's top fifty, we excel in both sales and tax revenue generation.
To propel our forward momentum, Jiangsu Weirun has adopted a strategic approach to talent acquisition, collaborating with esteemed domestic universities and research institutions to foster continuous innovation. Our relentless drive for technological advancement has resulted in 5 national patents for inventive breakthroughs and 3 utility model patents, demonstrating our commitment to staying at the forefront of technological progress.
With a remarkable annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, Jiangsu Weirun is dedicated to serving diverse sectors such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the ethos of 'pursuing excellence and building a world brand,' we are committed to aligning with international markets and standards, having secured prestigious certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a leading provider of forged products, Weirun maintains an unwavering dedication to professional expertise, delivering exceptional quality and service to our discerning clients.

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.