Durable Steel Square Ring - Quenching + Tempering, Compliant with ASTM/AISI/DIN

• 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.
Established in 2001, Jiangsu Weirun Forging Co., Ltd. stands as a pioneering force in China's industrial landscape, showcasing a rich heritage in crafting alloy steel smelting and manufacturing an expansive range of forged products. The company is proud to include Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. under its esteemed banner.
Specializing in an array of comprehensive projects, Jiangsu Weirun excels in alloy steel smelting, electroslag remelting, forging, and mold production. Over years of dedicated progress, the company has cultivated a robust industrial ecosystem that encompasses material recycling, meticulous smelting processes, precision electroslag casting, expert forging, and the artistry of precision mold machining, all catering to both domestic and international markets with utmost excellence.
Situated on an expansive 60,000 square meters of prime industrial real estate, the company's state-of-the-art factory is a beacon of innovative machinery and technological advancement. With a remarkable collection of electroslag furnaces and air hammers, along with modern mechanical processing units, heat treatment facilities, and cutting-edge testing devices, the company is a shining example of industrial innovation. Boasting fixed assets worth an impressive 153 million yuan and an annual industrial output of 300 million yuan, Jiangsu Weirun is a significant employer, nurturing a talented workforce of over 200, including more than 20 technical experts. The company proudly ranks among the top fifty enterprises in Danyang City by annual sales and tax contributions.
In its unwavering pursuit of relentless progress, Jiangsu Weirun has strategically recruited top-tier technical talents in recent years. The company has forged strong alliances with prominent domestic universities and research institutions, propelling innovation and technological advancements to new heights. These efforts have culminated in the acquisition of 5 nationally authorized invention patents and 3 utility model patents, underscoring its steadfast commitment to pioneering excellence and industry leadership.
With an impressive annual production capacity surpassing 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products serve as foundational pillars across a multitude of industries. These include wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Embodying the vision of 'pursuing excellence and building a world brand,' Jiangsu Weirun seamlessly integrates with the global marketplace, steadfastly adhering to an international brand strategy. Our unwavering commitment to quality is affirmed by esteemed certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a leading supplier and service provider of forged products, Weirun is dedicated to delivering outstanding professionalism and unmatched expertise, ensuring the delivery of premium services to our cherished clients.

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.