Medium- and High-Alloy Steel Forgings

Medium- and high-alloy steels are frequently employed in applications demanding a balance of strength and toughness. These alloys enhance their properties through the inclusion of elements like carbon, manganese, silicon, nickel, chromium, and molybdenum.
Alloy steel stands as the most frequently utilized metal for forging, primarily due to its superior strength, wear resistance, and toughness when compared to carbon steel forgings. The precise combination of alloys and elements plays a pivotal role in determining the physical strength and properties of the metal.
Furthermore, micro-alloying elements such as vanadium, titanium, and niobium are introduced to create specific combinations of properties, including weldability, strength, toughness, and fatigue resistance. To achieve these enhanced properties, alloy steel forgings are often subjected to heat treatment, commonly referred to as hot forging. Qilu maintains an extensive inventory of alloy steel to meet various industry needs.

Material grades

Grade UNS Number DIN Werkstoff Nr
4130 G41300 25CrMo4 1.7218
4140 G41400 42CrMo2 1.7225
4145 G41450
4320 G43200
4330
4340 G43400 34CrNiMo6 1.6582
52100 1.3505
8620 G86200 21NiCrMo22 1.6543
8630 G86300 1.6545
A182 Grade F5 K41545 12CRMO195 1.7362
A182 Grade F11 K11597 13CrMo4-5 1.7335
A182 Grade F22 K21590 10CrMo9-10 1.7380
A707 Grade L5
A707 Grade 3W

Forged metal products from Qilu

Forged Steel Blocks

Forged Steel Blocks

Our forged steel blocks are crafted from top-tier materials, carefully processed through the steel forging method. As a result, they exhibit outstanding wear resistance and ductility, rendering them superior to castings. This is particularly advantageous in applications demanding heightened strength and extended service life.
Why purchase Forged Steel Blocks from qilu？
Our process ensures a minimum reduction area ratio of 3 to 1, ensuring the highest block integrity.
In contrast to castings or flat-rolled products, the forging process imparts directional grain flow and a refined metallurgical microstructure, enhancing mechanical properties such as impact and tensile strength.
At Qilu, we are your comprehensive forging solution. We go beyond forging, offering value-added services like heat treatment, machining, and rigorous testing to provide you with the ultimate solution.

Disc Forgings

Our distinctive capabilities result in disc forgings that are not only flatter and more substantial but also possess outstanding mechanical attributes. These attributes make them the perfect choice for demanding applications such as mills, gear manufacturing, heat exchangers, mining equipment, and heavy machinery. Our disc forgings are crafted using cutting-edge equipment and premium materials, guaranteeing robust, precise, and dependable products.
Why purchase Disc Forgings from qilu？
The forging process imparts directional grain flow, enhancing the mechanical performance of our discs.
We offer disc forgings with dimensions of up to 106 inches in outside diameter and a weight of up to 55,000 lbs, catering to both individual custom orders and high-production runs.
At Qilu, we excel in rapid turnaround times, product innovation, and professional consultation to lower costs, reduce machining time, and elevate the overall performance of parts and products.

Steel Flange

Our Steel Flanges are meticulously forged to provide exceptional strength, precision, and resilience. With a wide range of sizes and customization options, we offer flanges that meet the unique demands of various industries, including oil & gas, petrochemical, power generation, and construction. Whether it’s a standard specification or a bespoke solution, our steel flanges ensure the highest level of performance and safety in critical applications.
Why purchase Steel Flange from qilu？
We provide flexibility in size and weight for our steel flange, and we can tailor the chemistry to meet the specific needs of our customers.
Our manufacturing process includes rigorous control to ensure the absence of non-metallic inclusions.
At Qilu, we are committed to upholding high manufacturing standards, delivering clean steel compositions, and maintaining impeccable surface quality in every product.

Hollow Tube Forgings

Our hollow tube forgings an inside diameter that is forged directly into the parts, rather than being bored from solid bars. This unique approach significantly reduces production time and enhances overall efficiency. By forging these components as a single unit, we ensure exceptional strength and quality. Additionally, hollow tube forgings offer a versatile and efficient solution for a wide range of construction and mechanical applications. Some key products benefits include reduced waste and enhanced structural integrity.
Why purchase Hollow Tube Forgings from qilu？
Our custom-made hollow tube forgings provide a superior alternative to heavy wall steel pipe and mechanical tubing, offering higher quality.
They are a viable replacement for centrifugal castings, which frequently fail to meet the desired internal strength and integrity standards.
At Qilu, we have the expertise to forge hollows with unique configurations and geometries, including squares with a central hole or hollows with varying sizes on the outside diameter.

Ring Forgings

Our Ring Forgings can be forged into a wide range of configurations to meet your specific requirements. Whether you need flat, rectangular-cross section parts or tall, cylindrical shapes, each ring offers exceptional strength and toughness. Seamless ring forgings stand out as the superior choice when compared to castings, metal fabrications, or flame-cut plates, particularly for critical applications in industries like oil & gas, power generation, and aerospace.
Why purchase Rings Forgings from qilu？
In terms of performance, ring forgings have no equal.
Their exceptional strength and ductility make them ideal for components that require resistance to torque, pressure, and fatigue.
At Qilu, we offer the most extensive capabilities of any ring forgings manufacturer globally, crafting each ring to order. Whether you need a single piece or high-volume orders, we have you covered.

Forged Shafts

Our products sets the bar high when it comes to mechanical performance. Thanks to our open-die forging process, we can control the grain flow throughout the product’s geometry, enhancing its characteristics and performance. Our forging capabilities deliver substantial cost and material savings in comparison to machined-bar step shafts.
Why purchase Forged Shafts from qilu？
Our open-die forging process for shafts is essential for achieving the necessary high-mechanical properties while still preserving cost and material efficiency.
In terms of performance, ring forgings have no equal.
About
Qilu, as one of the leading forged metal manufacturers in China, specializes in the production of high quality forgings such as shaft forgings, ring forgings and disk forgings.
products
Forged Shafts
Forged Steel Blocks
Disc Forgings
Steel Flange
Hollow Tube Forgings
Ring Forgings
Contact Info
Address
Yanzhou,Economic,Zone,Jining,China
Email
[email protected]
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