Superior Steel Forging Shafts - Quenching and Annealing Process

• 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. has become a symbol of groundbreaking innovation and superior quality in the forging industry. With noble origins linked to Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., Weirun has carved its place as a pioneer in China. The company excels in alloy steel smelting and the creation of a diverse range of forged works of art that set the standard for excellence.
Our company is renowned for its precise and sophisticated production capabilities, expertly managing alloy steel smelting, electroslag remelting, forging, and mold development. Weirun has meticulously built a comprehensive industrial network, seamlessly integrating each stage from material recycling to the precision machining of molds. Our dedication to quality and precision allows us to serve both domestic and international markets with unparalleled excellence.
Spanning an impressive 60,000 square meters, our state-of-the-art facility is a testament to our commitment to technological advancement. Hosting three modern 1-ton electroslag furnaces, along with robust 3-ton and 10-ton variants, our mechanical prowess is further demonstrated by two 2-ton air hammers, a 1-ton air hammer, and a precise 0.75-ton air hammer. These are part of our mechanized electro-hydraulic hammer lines, which include 5 and 8-ton capacities. Our expansive suite features cutting-edge equipment for mechanical processing and heat treatment, advanced spectrometers, and sophisticated testing devices. With a solid asset base valued at 153 million yuan, our industrial output value impressively reaches 300 million yuan annually. We boast a talented workforce of over 200, including more than 20 highly skilled technical professionals, placing us among the elite top fifty enterprises in Danyang City, with outstanding annual sales and tax contributions.
In our relentless pursuit of excellence, we have fortified our team with a diverse array of technical experts and fostered vibrant collaborations with eminent domestic universities and research institutes. Our unwavering commitment to technological advancement and innovation has been rewarded with 5 national authorized invention patents and 3 utility model patents, solidifying our status as an industry leader.
With an impressive annual production capacity surpassing 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products find applications across a broad spectrum of industries, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by our motto, 'pursuing excellence and building a world brand,' we confidently advance, integrating seamlessly with global markets. Our steadfast adherence to an international branding strategy ensures our production meets the highest global standards. Our certifications from ISO9001, China CCS, France BV, and Germany TUV underscore Weirun's reputation as a trusted, professional supplier and service provider of forged products, embodying professionalism and innovation. We consistently exceed customer expectations through our specialized, high-quality approach, delivering exceptional services with unwavering commitment.

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.