Alloy Steel Rod/Bar
Alloy steel bars refer to a type of alloy steel with a cross-section similar to a round shape. Alloy steel bars are widely used in military industry, automobile, aviation, shipbuilding, railway, nuclear power and other industries. They are also used in the production of fasteners, gears, and other components that require increased strength and durability.
The specific combination of elements used in an alloy steel bar determines its properties, such as increased strength, hardness, and resistance to wear and corrosion.
The main processes of alloy steel rods are: hot-rolled alloy steel rods, cold-rolled alloy steel rods, and cold-drawn alloy steel rods.
The main shapes of alloy steel bars are: alloy steel round bar, alloy steel square bar, alloy steel flat bar, alloy steel hexagonal bar.
Alloy Steel Round Bar is made up of different material grades such as A-182, F5, F9, F11, F12, F22 & F91. These are made up of various metal alloys that are corrosion resistant and strong. Changjin is a leading supplier and manufacturer of these Alloy Steel Round Bar products.
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WhatsApp: 0086-13788924073
Alloy steel bar sells thousands of Shapes, Sizes, and Lengths of Alloy Steel, Annealed Alloy Steel, Cold Drawn Annealed Alloy Steel, Pre-Hardened Alloy Steel, Free Pre-Hardened Alloy Steel, Turn-Ground-Polished Alloy Steel, Quenched & Tempered Alloy Steel and more.
There are different compositions to the alloys and different specifications and standards. The bars come under ASTM, ASME and API standards with specifications in ASTM, ASME, SA 182, ASTM 276 and ASME SA 276.
| 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 | ||||||||
| NO | China | Russia | America | Britian | Japan | France | German |
| GB | ГОСТ | ASTM | BS | JIS | NF | DIN | |
| 1 |
30Mn2
|
30Г2 | 1330 | 150M28 | SMn433H | 32M5 | 30Mn5 |
| 2 | 35Mn2 | 35Г2 | 1335 | 150M36 | SMn438(H) | 35M5 | 36Mn5 |
| 3 | 40Mn2 | 40Г2 | 1340 | SMn443 | 40M5 | ||
| 4 | 45Mn2 | 45Г2 | 1345 | SMn443 | 46Mn7 | ||
| 5 | 50Mn2 | 50Г2 | ~55M5 | ||||
| 6 | 20MnV | 20MnV6 | |||||
| 7 | 35SiMn | 35CГ | En46 | 37MnSi5 | |||
| 8 | 42SiMn | 35CГ | En46 | 46MnSi4 | |||
| 9 | 40B | TS14B35 | |||||
| 10 | 45B | 50B46H | |||||
| 11 | 40MnB | 50B40 | |||||
| 12 | 45MnB | 50B44 | |||||
| 13 | 15Cr | 15X | 5115 | 523M15 | SCr415(H) | 12C3 | 15Cr3 |
| 14 | 20Cr | 20X | 5120 | 527A19 | SCr420H | 18C3 | 20Cr4 |
| 15 | 30Cr | 30X | 5130 | 530A30 | SCr430 | 28Cr4 | |
| 16 | 35Cr | 35X | 5132 | 530A36 | SCr430(H) | 32C4 | 34Cr4 |
| 17 | 40Cr | 40X | 5140 | 520M40 | SCr440 | 42C4 | 41Cr4 |
| 18 | 45Cr | 45X | 51,455,147 | 534A99 | SCr445 | 45C4 | |
| 19 | 38CrSi | 38XC | |||||
| 20 | 12CrMo | 12XM | 620Cr.B | 12CD4 | 13CrMo44 | ||
| 21 | 15CrMo | 15XM | A-387Cr.B | 1653 | STC42 | 12CD4 | 16CrMo44 |
| 22 | STT42 | ||||||
| 23 | STB42 | ||||||
| 24 | 20CrMo | 20XM | 41,194,118 | CDS12 | SCT42 | 18CD4 | 20CrMo44 |
| 25 | CDS110 | STT42 | |||||
| 26 | STB42 | ||||||
| 27 | 25CrMo | 4125 | En20A | 25CD4 | 25CrMo4 | ||
| 28 | 30CrMo | 30XM | 4130 | 1717COS110 | SCM420 | 30CD4 | |
| 29 | 42CrMo | 4140 | 708A42 | 42CD4 | 42CrMo4 | ||
| 30 | 708M40 | ||||||
| 31 | 35CrMo | 35XM | 4135 | 708A37 | SCM3 | 35CD4 | 34CrMo4 |
| 32 | 12CrMoV | 12XMΦ | |||||
| 33 | 12Cr1MoV | 12X1MΦ | 13CrMoV42 | ||||
| 34 | 25Cr2Mo1VA | 25X2M1ΦA | |||||
| 35 | 20CrV | 20XΦ | 6120 | 22CrV4 | |||
| 36 | 40CrV | 40XΦA | 6140 | 42CrV6 | |||
| 37 | 50CrVA | 50XΦA | 6150 | 735A30 | SUP10 | 50CV4 | 50CrV4 |
| 38 | 15CrMn | 15XГ,18XГ | |||||
| 39 | 20CrMn | 20XГCA | 5152 | 527A60 | SUP9 | ||
| 40 | 30CrMnSiA | 30XГCA | |||||
| 41 | 40CrNi | 40XH | 3140H | 640M40 | SNC236 | 40NiCr6 | |
| 42 | 20CrNi3A | 20XH3A | 3316 | 20NC11 | 20NiCr14 | ||
| 43 | 30CrNi3A | 30XH3A | 3325 | 653M31 | SNC631H | 28NiCr10 | |
| 44 | 3330 | SNC631 | |||||
| 45 | 20MnMoB | 80B20 | |||||
| 46 | 38CrMoAlA | 38XMIOA | 905M39 | SACM645 | 40CAD6.12 | 41CrAlMo07 | |
| 47 | 40CrNiMoA | 40XHMA | 4340 | 871M40 | SNCM439 | 40NiCrMo22 |
The bars range from 4mm to 350mm in diameter in general. They are corrosion resistant and strong with a minimum tensile strength range of 850MPa to 1000MPa. It is also resistant to wearing.
We can provide customized services according to customer needs, welcome to consult!
| Outer Diameter(mm) | Length(mm) | |
| Cold Drawn | 10-500 | 50-110000 |
| Hot Rolled | 10-500 | 100-12000 |
| Forging | 35-2000 | 30 – 8000 |
| Depending on your needs | ||
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.
