Forged Steel Ring for Heavy Machinery and Pump Manufacturing Applications

• 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.
Founded in the transformative year of 2001, Jiangsu Weirun Forging Co., Ltd. emerges as a beacon of innovation, rooted in the illustrious legacy of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. Renowned as a trailblazer in China, we proudly set the standard in alloy steel smelting and the intricate crafting of a diverse array of forged products.
Our unwavering focus propels us to unparalleled excellence in the sophisticated production and adept management of alloy steel smelting, electroslag remelting, and precise mold crafting projects. Through years of dedicated effort, we have meticulously developed a comprehensive industrial chain. This seamlessly integrates material recycling, cutting-edge smelting, electroslag casting, expert forging, and precision mold machining, serving both domestic and international markets with distinction and expertise.
Nestled within a sprawling 60,000 square meter expanse, our facility is a testament to strategic prowess, boasting an array of premium assets such as three cutting-edge 1-ton electroslag furnaces, alongside a superior 3-ton and 10-ton counterpart. Our mechanical acumen is further amplified by a robust lineup of two 2-ton air hammers, a 1-ton, and a 0.75-ton air hammer, all complemented by electro-hydraulic hammer production lines of 5 and 8 tons. Our expansive setup includes advanced mechanical processing, cutting-edge heat treatment machinery, state-of-the-art spectrometers, and sophisticated performance testing devices. With a solid foundation of 153 million yuan in fixed assets, we proudly reach an astounding industrial output value of 300 million yuan. Our dedicated team of over 200 employees includes more than 20 highly skilled technical professionals, cementing our position among Danyang City's elite top fifty enterprises, recognized for outstanding annual sales and tax contributions.
In our relentless pursuit of brilliance, we have infused our ranks with a diverse array of technical talents and nurtured dynamic partnerships with prestigious domestic universities and research institutions. Our unwavering commitment to technological advancement and innovation is celebrated through 5 national authorized invention patents and 3 utility model patents, underscoring our leadership and pioneering spirit in the industry.
With an impressive annual production capacity soaring beyond 30,000 tons of steel ingots and a formidable forging capacity of 15,000 tons, our products are integral across a vast spectrum of industries. These include wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Driven by the ethos of 'pursuing excellence and building a world brand,' we stride forward, seamlessly integrating with international markets. Our unwavering commitment to an international brand strategy is embodied in our adherence to the highest global standards. Our excellence is affirmed by prestigious 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 by upholding 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.