Round Bar Steel Forging Rings with ASTM/AISI Standards, Normalized

• 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.
Since its inception in 2001, Jiangsu Weirun Forging Co., Ltd. has proudly emerged from the reputable roots of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a vanguard in China, our company has established an unparalleled reputation in the intricate fields of alloy steel smelting and the artful creation of a diverse range of forged masterpieces. We are the benchmark for quality and innovation in this industry.
Driven by unwavering dedication, we specialize in the sophisticated production and flawless management of alloy steel smelting, electroslag remelting, forging, and precision mold crafting projects. Over the years, we've meticulously crafted a fully integrated industrial chain, from material recycling to smelting, electroslag casting, forging, and precision machining of molds. Our services extend with exceptional quality to both domestic and global markets, establishing us as a trusted partner worldwide.
Our impressive facility spans 60,000 square meters, housing cutting-edge technology like three advanced 1-ton electroslag furnaces, and powerful 3-ton and 10-ton counterparts. Our mechanical expertise is enhanced by two 2-ton air hammers, a 1-ton air hammer, and an exacting 0.75-ton air hammer. These are complemented by fully mechanized electro-hydraulic hammer production lines, weighing 5 tons and 8 tons, along with comprehensive mechanical processing, advanced heat treatment equipment, innovative spectrometers, and sophisticated physical and chemical performance testing devices. With 153 million yuan in fixed assets, we proudly generate an industrial output value of 300 million yuan annually. A dedicated team of over 200, including 20+ highly skilled technical professionals, solidifies our status as one of Danyang City's top fifty enterprises, boasting impressive annual sales and tax contributions.
Our pursuit of excellence is embodied in our strategic collaborations with leading domestic universities and research institutions, as we infuse our team with a wealth of diverse technical talents. Our relentless drive for technological advancement and innovation is exemplified by our acquisition of 5 national authorized invention patents and 3 utility model patents, reflecting our leadership and expertise in the industry.
With a remarkable annual production capacity surpassing 30,000 tons of steel ingots and an impressive forging capacity of 15,000 tons, our products serve a broad spectrum of industries, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by our credo of 'pursuing excellence and building a world brand,' we seamlessly integrate with international markets. Our steadfast commitment to an international brand strategy ensures production to the highest global standards, validated by esteemed certifications such as 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 through a specialized, high-caliber approach to fulfill customer needs with precision.

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.