Heavy-Duty Steel Forgings with Quenching and Tempering Process

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Model NO.: 38crni3MOV 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.
Established in 2001, Jiangsu Weirun Forging Co., Ltd. stands as a beacon of innovation and quality in China's alloy steel smelting and forging landscape. Formed from the strategic union of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., our company cherishes its status as one of the nation's pioneering enterprises in the art of forging. Our storied legacy is etched in our commitment to continuous innovation and uncompromising excellence.
At the vanguard of alloy steel smelting, electroslag remelting, and forging, Jiangsu Weirun excels in the holistic manufacture of molds. Through years of dynamic growth, we have cultivated a comprehensive industrial chain that flawlessly merges material recycling, smelting, electroslag casting, forging, and the precision crafting of molds, catering to both domestic and international markets. Our unwavering promise is to deliver unparalleled quality and service, setting industry benchmarks.
Our expansive 60,000-square-meter facility houses the pinnacle of electroslag furnace technology, featuring three 1-ton, one 3-ton, and a formidable 10-ton unit. Our forging prowess is showcased through two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer, which are enhanced by our mechanized electro-hydraulic hammer lines of 5 and 8 tons. Cutting-edge mechanical processing and sophisticated heat treatment equipment, combined with spectrometers and a host of testing devices, bolster our impressive annual industrial output of 300 million yuan. With fixed assets of 153 million yuan and a dynamic team of over 200 professionals, including 20 technical savants, we pride ourselves on being one of Danyang City's top fifty enterprises, excelling in both sales and tax contributions.
Propelling our momentum into the future, Jiangsu Weirun has strategically invested in talent acquisition, partnering with esteemed domestic universities and research entities to fuel relentless innovation. Our dedication to technological progress is evident in our portfolio of 5 national patents for groundbreaking inventions and 3 utility model patents, underscoring our commitment to pioneering excellence.
With an impressive annual capacity exceeding 30,000 tons of steel ingots and a forging clout of 15,000 tons, Jiangsu Weirun is poised to serve diverse sectors including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the ethos of 'pursuing excellence and building a world brand,' we steadfastly align with global markets and standards. Our prestigious certifications such as ISO9001, China CCS, France BV, and Germany TUV reflect our dedication to quality and professionalism. As a leading force in the provision of forged products, Weirun remains unwavering in its commitment to technical expertise, delivering exceptional quality and service to our valued 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.