Durable Low Alloy Normalizing Steel Square Bar for Heavy Use

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Model NO.: 38crni3MOV 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. emerges as a trailblazer in China's alloy steel smelting and forging sphere. Born from the strategic merger of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., our company carries a distinguished legacy as one of the earliest pioneers in crafting a diverse array of forged products. Our reputation is anchored in innovation and a steadfast dedication to excellence.
Jiangsu Weirun is a leader in alloy steel smelting, electroslag remelting, forging, and precision mold manufacturing. Our extensive industrial chain, built over years of relentless development, integrates every phase from material recycling and smelting to electroslag casting, forging, and the precision machining of molds, serving both domestic and international sectors. We are devoted to delivering unmatched quality and exceptional service.
Spanning an impressive 60,000 square meters, our cutting-edge facility is outfitted with advanced electroslag furnaces, including three 1-ton units, one 3-ton unit, and a formidable 10-ton unit. Our forging operations are equipped with two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer, all enhanced by mechanized electro-hydraulic hammer lines of 5 and 8 tons. Supported by state-of-the-art mechanical processing and heat treatment equipment, spectrometers, and a variety of testing devices, our robust industrial output reaches 300 million yuan. Backed by fixed assets totaling 153 million yuan and a skilled workforce of over 200, including 20 technical experts, we proudly rank among Danyang City's top fifty, leading in both sales and tax contributions.
To accelerate our forward trajectory, Jiangsu Weirun has adopted a strategy focused on talent acquisition, forming alliances with esteemed domestic universities and research institutions to nurture continuous innovation. Our unyielding pursuit of technological advancement has resulted in 5 national patents for groundbreaking inventions and 3 utility model patents, underscoring our dedication to cutting-edge progress.
With an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, Jiangsu Weirun serves a wide spectrum of industries including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Embodying the ethos of 'pursuing excellence and building a world brand,' we are committed to aligning with international markets and standards. We proudly hold prestigious certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a leading provider of forged products, Weirun maintains an unwavering commitment to professional expertise, ensuring unparalleled quality and service for our discerning clientele.

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.