Steel Forging Rings - ASTM/AISI Round Bar with Normalizing Delivery Condition

• 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. represents the synergy of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a trailblazer in China's industrial landscape, Weirun excels in the sophisticated processes of alloy steel smelting and the dynamic creation of a wide spectrum of forged products. Since our founding, our steadfast dedication to innovation and quality has been a hallmark of our operations.
Driven by a commitment to excellence, our company engages in a broad spectrum of initiatives, including alloy steel smelting, electroslag remelting, forging, and mold crafting. We have prudently developed a comprehensive industrial ecosystem that flawlessly integrates material recycling, smelting, electroslag casting, forging, and precision mold machining, concurrently serving both domestic and international clientele with unwavering dedication.
Our vast manufacturing facility, sprawling across 60,000 square meters, is equipped with state-of-the-art machinery: three 1-ton electroslag furnaces, a 3-ton, and a 10-ton electroslag furnace; further enhanced by two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer. Moreover, we feature fully automated electro-hydraulic hammer production lines at 5 tons and 8 tons. Our comprehensive suite of mechanical processing and heat treatment tools, sophisticated spectrometers, and testing apparatuses for physical and chemical analysis, underscores our capabilities. With fixed assets totaling 153 million yuan, we achieve an extraordinary industrial output of 300 million yuan. Our workforce exceeds 200 skilled professionals, including 20 technical experts, positioning us among the top fifty enterprises in Danyang City for annual sales and tax contributions.
As part of our strategic growth initiatives, we have actively pursued the recruitment of diverse technical talents and established collaborations with prestigious domestic universities and research entities. This strategic engagement has spurred considerable technological advancements and innovations, earning us 5 nationally authorized invention patents and 3 utility model patents, reinforcing our status as an industry frontrunner.
With an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are pivotal to industries such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Upholding the ethos of 'pursuing excellence and building a world brand,' we aim to flawlessly align with the global marketplace and uphold an international brand strategy. Our commitment to global standards is certified by accreditations like ISO9001, China CCS, France BV, and Germany TUV. As a dedicated supplier and service provider of forged products, Weirun remains unwaveringly committed to professionalism, continuously striving for unparalleled expertise. Our focused approach guarantees exceptional, high-quality services to 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.