Steel Forging Rings - JIS Standard Normalizing for Enhanced Durability

• 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 2001, Jiangsu Weirun Forging Co., Ltd. epitomizes a dynamic merger of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a trailblazer in alloy steel smelting and forging, Weirun is celebrated for its mastery in crafting superior forged products. Our unwavering journey of innovation and excellence has defined our legacy from the very start.
Our relentless pursuit of excellence drives us in diverse projects, encompassing alloy steel smelting, electroslag remelting, forging, and mold manufacturing. Over the years, we've meticulously developed a seamless industrial chain that integrates material recycling, smelting, electroslag casting, forging, and precision mold machining, all with a commitment to serve both domestic and international markets with unparalleled dedication.
Our expansive 60,000-square-meter facility brims with state-of-the-art equipment, including three 1-ton electroslag furnaces alongside 3-ton and 10-ton electroslag models. We are equipped with two 2-ton air hammers, a 1-ton, and a 0.75-ton air hammer, plus automated electro-hydraulic hammer lines of 5 and 8 tons. Our arsenal is further enhanced with advanced mechanical processing and heat treatment equipment, cutting-edge spectrometers, and comprehensive testing devices for physical and chemical analyses. With fixed assets worth 153 million yuan, we proudly deliver an astounding industrial output of 300 million yuan, employing over 200 skilled professionals, including 20 technical experts, solidifying our status among the prestigious top fifty enterprises in Danyang City for sales and tax contributions.
In our quest for growth, we have embraced a bold strategy of attracting technical talent and forging partnerships with esteemed domestic universities and research institutions. This proactive approach has catapulted our technological advancements, earning us 5 national invention patents and 3 utility model patents, firmly positioning us as an industry leader.
With an impressive annual production capacity exceeding 30,000 tons of steel ingots and 15,000 tons of forging capacity, our products are vital across industries such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the ethos of 'pursuing excellence and building a world brand,' we seamlessly integrate with the global market, supported by accreditations like ISO9001, China CCS, France BV, and Germany TUV. As a dedicated provider of forged products, Weirun embodies professionalism, consistently reaching new heights of expertise. Our specialized approach ensures unparalleled high-quality services for our esteemed customers.

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.