Durable Steel Forging Shafts - DIN Standard Annealing Cylinder Shape

• 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 pivotal year of 2001, Jiangsu Weirun Forging Co., Ltd. emerges as a beacon of metallurgical excellence, drawing its lineage from the esteemed Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a forerunner in China's innovative landscape, Weirun stands as a paragon in alloy steel smelting and the artful creation of a diverse range of forged masterpieces.
Driven by an unwavering focus, our enterprise stands at the forefront of sophisticated alloy steel smelting, electroslag remelting, and innovative forging. Our prowess extends to meticulous mold crafting, resulting in a seamlessly integrated industrial chain. This chain encompasses everything from material recycling to precision machining of molds, serving both domestic visionaries and international markets with unparalleled distinction.
Occupying a strategically expansive 60,000 square meter facility, our company is a powerhouse of cutting-edge technology. Boasting three advanced 1-ton electroslag furnaces, complemented by 3-ton and 10-ton counterparts, our mechanical strength is further amplified by an array of air hammers and fully mechanized electro-hydraulic hammer lines. With a solid foundation of 153 million yuan in fixed assets, we proudly reach an industrial output value of 300 million yuan. Our diligent team of over 200 includes more than 20 expert technical professionals, positioning us among Danyang City's elite top fifty enterprises in terms of sales and tax revenue.
In our relentless pursuit of excellence, we have integrated a diverse array of technical talents and formed strategic alliances with prestigious domestic universities and research institutions. Our commitment to technological innovation and advancement has earned us 5 national authorized invention patents and 3 utility model patents, reinforcing our leadership and pioneering spirit within the industry.
With a remarkable annual production capacity surpassing 30,000 tons of steel ingots and a substantial forging capacity of 15,000 tons, our products find extensive application across a diverse range of industries. These include wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by our philosophy of 'pursuing excellence and building a world brand,' we seamlessly integrate with global markets, producing to the highest international standards. Our excellence is certified by prestigious accolades such as ISO9001, China CCS, France BV, and Germany TUV. As a distinguished professional supplier and service provider, Weirun epitomizes professionalism and innovation, consistently delivering exceptional services with a specialized, high-caliber approach to meet and exceed 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.