Reliable Steel Forging Rings - ASTM Compliant Round Bars and Shafts

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• 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. emerges as a distinguished union of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a trailblazer in China, Weirun excels in the sophisticated craft of alloy steel smelting and the vibrant production of a wide array of forged products. From our inception, our legacy has been marked by relentless innovation and an unwavering dedication to quality.
Driven by a passion for excellence, our company engages in a variety of projects, including alloy steel smelting, electroslag remelting, forging, and mold manufacturing. We have meticulously developed an end-to-end industrial chain that integrates material recycling, smelting, electroslag casting, forging, and precision mold machining. Our commitment to serving both domestic and international markets remains unparalleled.
Our expansive 60,000 square meter facility is home to state-of-the-art equipment: three 1-ton, a 3-ton, and a 10-ton electroslag furnaces; along with two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer. We also feature fully automated electro-hydraulic hammer production lines of 5 tons and 8 tons. Our comprehensive suite includes advanced spectrometers, mechanical processing, heat treatment equipment, and testing devices for physical and chemical performance. With fixed assets valued at 153 million yuan, we boast an impressive industrial output value of 300 million yuan. Employing over 200 skilled professionals, including 20 technical experts, we proudly rank among the top fifty enterprises in Danyang City for annual sales and tax contributions.
To enhance our company's growth trajectory, we've embraced a strategy of attracting diverse technical talents and fostering partnerships with prestigious domestic universities and research institutions. This proactive stance has fueled significant technological advancements, earning us 5 national authorized invention patents and 3 utility model patents, cementing our leadership in the industry.
With an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are indispensable across industries such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Rooted in the philosophy of 'pursuing excellence and building a world brand,' we aim to align seamlessly with the global market by adhering to international standards, validated by ISO9001, China CCS, France BV, and Germany TUV certifications. As a leading supplier and service provider of forged products, Weirun is committed to professionalism, striving for new heights of expertise and offering exceptional high-quality services to our valued 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.