Customized Hot Forging Round Bar 40crnimo Alloy Steel Cylinder

• 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.
Pioneering its presence since 2001, Jiangsu Weirun Forging Co., Ltd. stands as a cornerstone in China's industrial landscape. Born from its alliance with Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., Weirun is acclaimed for its extensive expertise in alloy steel smelting and the artful creation of diverse forged products. As one of the earliest trailblazers in this domain, Weirun has carved out a distinguished reputation, marking its territory with innovation and excellence in both material and manufacturing prowess.
Jiangsu Weirun Forging Co., Ltd. is a beacon of innovation in alloy steel production and forging. Specializing in alloy steel smelting, state-of-the-art electroslag remelting, and precise mold crafting, the company has established a comprehensive industrial chain. With an international reach, our operations span material recycling, smelting, casting, forging, and precision machining, delivering unparalleled quality both locally and globally.
Spread across a sprawling 60,000 square meters, our cutting-edge facility boasts an impressive array of advanced machinery. Equipped with three 1-ton, a 3-ton, and a 10-ton electroslag furnaces, along with a suite of air hammers and mechanized electro-hydraulic hammer lines, we stand at the forefront of mechanical processing and heat treatment innovation. Complementing this are our spectrometers and comprehensive testing devices. With fixed assets of 153 million yuan and an industrial output value soaring to 300 million yuan, our company not only ranks among the top fifty enterprises in Danyang City but also thrives with a dynamic workforce of over 200 skilled professionals, including a team of 20+ technical experts.
To spearhead its rapid growth, Jiangsu Weirun Forging Co., Ltd. has embraced a forward-thinking approach by actively recruiting diverse technical talent and fostering collaborations with prestigious universities and research institutions across China. This synergy has propelled our relentless pursuit of technological advancement, culminating in the acquisition of 5 prestigious national invention patents and 3 utility model patents. These achievements underscore our unwavering commitment to innovation and excellence.
Boasting a robust annual production capacity that exceeds 30,000 tons of steel ingots and supports a forging capacity of 15,000 tons, Jiangsu Weirun Forging Co., Ltd. caters to a myriad of industries, from wind power and chemical engineering to automotive and shipbuilding. Adhering to our core principle of "pursuing excellence and building a world brand," we steadfastly pursue an international brand strategy, aligning our production processes with global standards. Our certifications, including ISO9001, China CCS, France BV, and Germany TUV, attest to our unwavering commitment to quality. As a dedicated supplier and service provider of premium forged products, Weirun stands resolute in its mission to elevate professionalism and expertise, relentlessly delivering superior services to our esteemed 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.