Reliable Steel Forging Shafts - DIN Standard Annealing Round Bar 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. carries forward a proud legacy originating from the esteemed Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. Renowned as trailblazers in China, we have established unparalleled standards in alloy steel smelting and the design of diverse forged products, setting a benchmark in the industry.
Driven by an unwavering commitment to precision, our company specializes in the sophisticated production and management of alloy steel smelting, electroslag remelting, forging, and mold crafting projects. Over the years, we have diligently constructed a comprehensive industrial chain that seamlessly integrates material recycling, smelting, electroslag casting, forging, and the meticulous precision machining of molds. Our distinguished services extend to both domestic and international markets, earning us a reputation for excellence.
Strategically positioned with an expansive 60,000 square meter facility, our company is a beacon of innovation and state-of-the-art technology. We feature three cutting-edge 1-ton electroslag furnaces, along with a superior 3-ton and 10-ton furnace counterpart. Our mechanical prowess is further exemplified by two 2-ton air hammers, a 1-ton air hammer, and a precision 0.75-ton air hammer. This is complemented by our fully mechanized electro-hydraulic hammer production lines of 5 tons and 8 tons each. Our comprehensive setup includes advanced mechanical processing and heat treatment equipment, alongside cutting-edge spectrometers and sophisticated physical and chemical performance testing devices. Backed by a solid foundation of 153 million yuan in fixed assets, we proudly achieve an industrial output value that soars to 300 million yuan. Our dedicated team of over 200 employees includes more than 20 highly skilled technical professionals, which reinforces our prestigious position among Danyang City's top fifty enterprises, marked by impressive annual sales and tax contributions.
Our pursuit of excellence is amplified by strategically enhancing our team with diverse technical talents and fostering dynamic partnerships with leading domestic universities and research institutions. Our relentless focus on technological advancement and innovation has earned us 5 national authorized invention patents and 3 utility model patents, underscoring our leadership and pioneering spirit in the industry.
Boasting an exceptional annual production capacity that exceeds 30,000 tons of steel ingots and a formidable forging capacity of 15,000 tons, our products are widely used in industries such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by our ethos of "pursuing excellence and building a world brand," we forge ahead with seamless integration into international markets. Our unwavering commitment to an international brand strategy is evident as we adhere to the highest global standards, validated by certifications like ISO9001, China CCS, France BV, and Germany TUV. As a trusted professional supplier and service provider of forged products, Weirun epitomizes professionalism and innovation, consistently delivering exceptional services through a specialized, high-caliber approach to meet our customers' evolving needs.

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.