Durable Round Bar Steel Forging Shafts - Quenching and Tempering 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.
Founded in the esteemed year of 2001, Jiangsu Weirun Forging Co., Ltd. has flourished into a beacon of innovation and excellence. Proudly rooted in the legacy of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., Weirun shines as a cornerstone in China's industrial domain. Its unparalleled expertise in alloy steel smelting is complemented by a diverse array of forged masterpieces, setting a new standard in the industry.
Our company distinguishes itself through the intricate craft and expert oversight of alloy steel smelting, electroslag remelting, forging, and mold development. Weirun has masterfully constructed a comprehensive industrial ecosystem, seamlessly integrating processes from material recycling to meticulous mold crafting. Catering to a global clientele, we maintain an unwavering dedication to superior quality at every stage.
Nestled within a vast 60,000 square meter hub of innovation, our facilities are equipped with cutting-edge resources. With three advanced 1-ton electroslag furnaces, alongside robust 3-ton and 10-ton units, our mechanical capabilities are enhanced by two 2-ton air hammers, a 1-ton air hammer, and a precision 0.75-ton air hammer. Fully mechanized electro-hydraulic hammer lines of 5 and 8 tons further augment our production power. Our expansive equipment suite boasts state-of-the-art heat treatment technology, advanced spectrometers, and sophisticated testing devices. Backed by 153 million yuan in fixed assets, our industrial output reaches an impressive 300 million yuan. Our dedicated team of over 200, including more than 20 seasoned technical experts, ensures our position among Danyang City's top fifty enterprises, highlighted by outstanding annual sales and tax contributions.
In our fervent quest for superiority, we have fortified our team with a plethora of technical specialists and formed strategic partnerships with top-tier domestic universities and research institutions. Our steadfast commitment to technological innovation and advancement is evident in 5 national authorized invention patents and 3 utility model patents, cementing our leadership within the industry.
With an impressive annual production capacity surpassing 30,000 tons of steel ingots and a formidable forging capability of 15,000 tons, our products are extensively used across diverse sectors such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Driven by the compelling motto "pursuing excellence and building a world brand," we confidently advance, seamlessly connecting with global markets. Our unwavering commitment to an international brand strategy ensures we operate at the highest global standards. Certified by ISO9001, China CCS, France BV, and Germany TUV, Weirun stands as a trusted professional supplier and service provider of forged products, embodying professionalism and innovation. We consistently offer exceptional services, adhering to a specialized, top-notch approach that surpasses customer expectations.

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.