Industrial Steel Forging Rings, Quenching + Tempering, Compliant with JIS

• 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 transformative year of 2001, Jiangsu Weirun Forging Co., Ltd. is a beacon of innovation, emerging from the esteemed Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a trailblazer in China, we are renowned for our mastery in alloy steel smelting and our unparalleled collection of forged product creations.
With unwavering commitment, our organization thrives in the advanced production and flawless management of alloy steel smelting, electroslag remelting, forging, and precision mold crafting ventures. Over time, we have expertly built an all-encompassing industrial chain, seamlessly merging material recycling, smelting, electroslag casting, forging, and precision mold machining, delivering exceptional service to markets worldwide.
Strategically situated within a vast 60,000 square meter facility, our enterprise is equipped with an extraordinary collection of assets, including three cutting-edge 1-ton electroslag furnaces, alongside superior 3-ton and 10-ton varieties. Our mechanical capabilities are further amplified by two 2-ton air hammers, a 1-ton air hammer, and a finely-tuned 0.75-ton air hammer, supported by fully mechanized electro-hydraulic hammer production lines of both 5 tons and 8 tons. Our setup is complete with comprehensive mechanical processing and advanced heat treatment equipment, state-of-the-art spectrometers, and sophisticated physical and chemical performance testing apparatus. With a solid foundation of 153 million yuan in fixed assets, we reach an impressive industrial output value of 300 million yuan. Our devoted team of over 200 employees includes more than 20 highly skilled technical professionals, securing our status among Danyang City's top fifty enterprises with remarkable annual sales and tax contributions.
In our quest for distinction, we have strategically enriched our team with diverse technical experts and nurtured dynamic partnerships with prestigious domestic universities and research institutions. Our relentless pursuit of technological advancements and innovation is recognized by 5 national authorized invention patents and 3 utility model patents, reinforcing our industry leadership.
With an astounding annual production capacity surpassing 30,000 tons of steel ingots and a formidable 15,000-ton forging capacity, our products are extensively utilized across diverse sectors such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Driven by the principle of 'pursuing excellence and building a world brand,' we advance, seamlessly integrating with global markets. Our dedication to an international brand strategy is steadfast, producing to the most rigorous global standards. Our quality is validated 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 creativity, consistently delivering outstanding services through a specialized, high-quality approach tailored to meet customer demands.

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.