Alloy Steel Forgings
Changjin is capable to manufacture tailored alloy steel forging rings designed to meet specific customer requirements. Our High technology quenching systems along with our forging processes allow us to manufacture high quality alloy steel forgings in a wide range of shapes, including rolled cube, rings, bars, blocks, discs and more.
Depending on the chemistry and manufacturing process, Alloy Steel Forged Rings are benefits that can be exhibited: Wear resistant, Toughness and hardenability, High strength at high and low temperatures, Corrosion Resistant, Good machinability.
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Alloy steel grades come in various forms, including sheets, plates, bars, and pipes, offering versatility in design options.
| FORGING | TYPE | MAX. WEIGHT | MAX. DIMENSION | ALLOY | STANDARD |
| Open die forging | Cube / valve | ≤ 20t | Length ≤ 7000mm , Width ≤ 2000mm , Height ≥ 150mm | G13200, G13300, G13350, G13400, G13450, G51150, G51200, G51300, G513500, G51400, G51450, G51500, G41190, G41300, G41350, G41400, G61200, G61500, G51200, G31400, G31450, G33106, G86200, G43400. |
GB/T1299, ASTM A29 |
| Disk | ≤ 20t | Diameter ≤ 3500mm, Height ≥ 150mm | NB/T 47009, NB/T 47010, EN10083, EN 10084 | ||
| Ring / circle | ≤ 20t | Diameter ≤ 3500mm , Height ≥ 150mm | NB/T 47009, NB/T 47010, EN10083, EN 10084 | ||
| Cylinder | ≤ 20t | Diameter ≤ 2000mm , Length ≤ 2000mm | NB/T 47008, ASME SA336 | ||
| Axle | ≤ 20t | Length ≤ 7000mm , Diameter ≤ 1500mm | JB/T 1267, JB/T 1270 |
We can provide customized services according to your needs
We have the experience, resources, and capabilities to exceed all your custom open-die alloy steel forging needs. Request a quote today on the custom alloy steel forgings you need, or contact us for more information.
| ISO | гOCT | DIN | US | JIS | UK | FR | ||
| ASTM | UNS | AISI | BS | NF | ||||
| 20Mn6 | 20г2 | 20Mn5 | G13200 | 1320 | SMn420 | 150M19 | 20M5 | |
| 28Mn6 | 30г2 | 28Mn6 | G13300 | 1330 | SMn433 | 150M28 | 32M5 | |
| 36Mn6 | 35г2 | 36Mn6 | G13350 | 1335 | SMn433 | 150M36 | 35M5 | |
| 42Mn6 | 40г2 | G13400 | 1340 | SMn438 | 40M5 | |||
| 45г2 | 46Mn7 | G13450 | 1345 | SMn443 | 45M5 | |||
| 50г2 | 50Mn7 | 55M5 | ||||||
| 17MnV6 | ||||||||
| 15X | 15Cr3 | G51150 | 5150 | SCr415 | 527A17 | 12C3 | ||
| 15XA | ||||||||
| 20Cr4 | 20X | 20Cr4 | G51200 | 5120 | SCr420 | 527A19 | 18C3 | |
| 30X | 28Cr4 | G51300 | 5130 | SCr430 | 530A30 | 28C4 | ||
| 34Cr4 | 35X | 34Cr4 | G513500 | 5135 | SCr435 | 530A36 | 38C4 | |
| 41Cr | 40X | 41Cr4 | G51400 | 5140 | SCr440 | 530A40 | 42C4 | |
| 45X | G51450 | 5145 | SCr445 | 45C4 | ||||
| 50X | G51500 | 5150 | 50C4 | |||||
| 38XC | ||||||||
| 12XM | 12CrMo44 | 12CD4 | ||||||
| 15XM | 15CrMo5 | SCM415 | 15CD4.05 | |||||
| 18CrMo4 | 20XM | 20CrMo4 | G41190 | 4119 | SCM420 | CDS12 | 18CD4 | |
| 30XM | G41300 | 4130 | SCM430 | CDS13 | 30CD4 | |||
| 34CrMo4 | 35XM | 34CrMo4 | G41350 | 4135 | SCM435 | 708A37 | 34CD4 | |
| 42CrMo4 | 38XM | 42CrMo4 | G41400 | 4140 | SCM440 | 708A40 | 42CD4 | |
| 12XMф | ||||||||
| 35XMф | 35CrMoV5 | |||||||
| 12X1Mф | 13CrMoV4·2 | |||||||
| 25X2MфA | 24CrMoV5·5 | |||||||
| 25X2M1фA | ||||||||
| 20X3MBф | 21CrVMoW12 | (SAE)6470E | SACM645 | 905M35 | 40CAD6·12 | |||
| 41CrA1Mo74 | 38XM1фA | 41CrA1Mo7 | G61200 | 6120 | ||||
| 20Xф | 21CrV4 | (SAE)6140 | ||||||
| 40XфA | 42CrV6 | |||||||
| 51CrV4 | 50XфA | 50CrV4 | G61500 | 6150 | SUP10 | 735A50 | 50CrV4 | |
| 15Xг | 16MnCr5 | 16MC5 | ||||||
| 20MnCr5 | 20Xг | 20MnCr5 | G51200 | 5120 | SMnC420 | 20MC5 | ||
| 40Xг | 5140 | SMnC443 | ||||||
| 20Xгс | ||||||||
| 25Xгс | ||||||||
| 30Xгс | ||||||||
| 30XгсA | ||||||||
| 35XгсA | ||||||||
| 25XгM | 20CrMo5 | 4119 | SCM421 | 708M40 | 42CD4 | |||
| 38XгM | SCM440 | |||||||
| 18XгT | ||||||||
| 30XгT | 30MnCrTi4 | |||||||
| 20XH | 20NiCr6 | 3120 | 637M17 | 20NC6 | ||||
| 40XH | 40NiCr6 | G31400 | 3140 | SNC236 | 640M40 | 35NC6 | ||
| 45XH | 45NiCr6 | G31450 | 3145 | |||||
| 50XH | 3150 | |||||||
| 12XH2 | 14NiCr10 | 3215 | SNC415 | 14NC11 | ||||
| 15CrNi13 | 12XH3A | 14NiCr14 | 3415 | SNC815 | 655M13 | 14NC12 | ||
| 20XH3A | 22NiCr14 | 20NC11 | ||||||
| 30XH3A | 31NiCr14 | 3435 | SNC631 | 653M31 | 30NC12 | |||
| 37XH3 | 35NiCr18 | 3335 | SNC836 | 35NC15 | ||||
| 12X2H4A | 14NiCr18 | G33106 | 3310 | 659M15 | 12NV15 | |||
| 20X2H4A | 3320 | 20NC14 | ||||||
| 20NiCrMo2 | 20XHM | 21NiCrMo2 | G86200 | 8620 | SNCM220 | 805M20 | 20NCD2 | |
| 40XHMA | 36NiCrMo4 | G43400 | 4340 | SNCM439 | 817M40 | 40NCD3 | ||
| 45XMфA | SNCM447 | |||||||
| 18X2H4BA | ||||||||
| 25X2H4BA | ||||||||
Our Alloy Steel Forged Rings are through hardening alloy rings, these rings are recognised for their competent wear resistance against hostile elements, they can be further surface hardened to enhance their toughness and wear resistance.
We supply Alloy Steel Forged Rings with excellent machinability for the locomotive, automobile, cranes for the offshore industry, etc.
We have built a reliable product portfolio over the span of 30 years through the conservative use of resources and a careful monitoring of market trends and demands.
We also provide forging blanks and CNC precision machining services for our clients, covering industries such as energy, petrochemicals, steel, engineering machinery, plastics, prevention and control, hydraulics, healthcare, and food. Please feel free to send us drawings for inquiries.
Metalworking Services
CNC Machining
Sheet Metal Fabrication
Metal Welding
Metal Cutting
Metal Bending
Metal Punching
Metal Forging
Metal Sheet Rolling
Tube and Plate Drilling
Heavy Forging Press Capacity
Our heavy-duty forging presses support open-die forging and deformation of large-section forgings, including discs, shafts, blocks, and custom components. This capability enables us to meet the demanding forming requirements of heavy industrial applications.
Heat Treatment Capability
Heat treatment is a critical step in achieving the mechanical properties required for heavy-duty forgings. Our process capabilities meet the strength, toughness, and structural stability requirements for forged components used under demanding operating conditions.
Heavy Shaft Machining
We offer machining capabilities for large forged shafts and long cylindrical components, supporting both rough and finish machining. This capacity is suitable for stepped shafts, rotor shafts, rollers, and other heavy-duty forged shaft components.
Ring Forging Machining
Our machining facilities are capable of handling large ring-shaped forgings and circular parts that require precise turning, face machining, boring, and contour control. This capability is suitable for industrial ring blanks, heavy-duty circular parts, and machined ring forgings.
Cylindrical Forging Machining
We offer machining solutions for heavy-duty cylindrical, hollow, and tubular forgings. This capability supports the machining of sleeves, cylinders, and other thick-walled forged components used in pressure vessels, rotating systems, and general industrial applications.
Inspection & Testing
Quality control is integrated into our production process through the inspection and testing of forged and machined parts. Our capabilities help verify the dimensional accuracy, condition, and quality consistency of industrial forgings prior to delivery.
Packing & Delivery
Finished forgings are properly protected and packaged to minimize the risk of damage during storage and transportation. Our packaging methods ensure the safe domestic delivery and export shipment of machined and high-value forged components.
