ASTM 4140 4130 4135 Steel Round Bars Premium Quality Alloy Structural Steel for Machine Manufacturing
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Product Details
| Customization: | Available |
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| After-sales Service: | 10years |
| Warranty: | 10years |
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Basic Info.
- Model NO.
- 200mm*6m
- Type
- Alloy Steel Bar
- Standard
- AISI, ASTM, GB, JIS, DIN, BS
- Technique
- Hot Rolled
- Application
- Structural Steel Bar, Tool Steel Bar, Die Steel Bar
- Surface Treatment
- Coated
- Alloy
- Alloy
- Special Use
- Free Cutting Steel
- Material
- 4140 4130 4135 SCR440 20CrMoA 20cr2ni4a
- Secondary or Not
- Non-Secondary
- Diameter
- 6-400mm
- MOQ
- 10 Tons
- Length
- 1-12m/Customized
- Payment
- 30%T/T in Advance or L/C at Sight
- Trade Term
- EXW, Fob, CIF, CFR
- Sample
- Available
- Delivery Time
- Within 15 Days After Receiving The Deposit
- Transport Package
- Packaged in Exporting Standard.
- Specification
- Standard dia round bar
- Trademark
- HJ Steel
- Origin
- Shandong, China
- Production Capacity
- 5000 Ton One Month
Product Description
Round steel is a hollow cylindrical metal material, which is widely used in construction, machinery manufacturing, automobile manufacturing, energy, transportation and other industries. Round steel is made in a variety of processes, including hot rolling, cold drawn manufacturing and cold drawn manufacturing.
Alloy steel is a kind of steel material whose properties and characteristics are changed by adding alloying elements to ordinary steel. The alloying elements of alloy steel can include buckwheat, molybdenum, nickel, vanadium, manganese, etc. Through different combinations of alloying elements, alloy steel can be made to have different properties, such as wear-resistant, corrosion-resistant, and high-temperature strength characteristics.
1).Composition:
| C | Si | Mn | Cr | Mo | P | S |
| 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | 0.8-1.10 | 0.15-0.25 | <0.035 | <0.04 |
2). Equivalent Grades :
| GB | DIN | ASTM | JIS | BS | NF |
| 42CrMo | 1.7225 | 4140 | SCM440 | 708M40 | 42CD4 |
3). Diameters:6-400mm
Length:1-12m or as required
4). Smelting Process:
EAF+LF+VD
Note:EAF=Electric Arc Furnace; LF=Ladle Furnace; VD=Vacuum Degassing;
5). Properties of 4140 alloy steel:
Special alloy steel, engineering steel supplied in quenched and tempered conditions. Very good machinability. High toughness, creep strength, repeated impact resistance.
6). Application of 4140 alloy steel:
Components with high requirements on toughness, e.g. gear wheels, pinions, connecting rods, parts for mechanical engineering
7).Special Steel Round Bar
| Grade | Spec | Dimension | Steel Grade | Application industry | |
| Special Steel Round Bar | Quality carbon structural steel | GB/T699 JIS G 4051 ASTM A29 SAE,EN10083 (Others) | 12-260 | 10# ,20#,45#, 65Mn,SAE1080,S45C,etc | For Manufacturing of All Kinds of Bearing Parts, Connecting Rod. Rigging Metal Tools etc. |
| Low alloy high-strength steel | GB/T1591,(Others) | 13-260 | Q355 series,Q460C,etc | Mechanical,Car,Engineering machinery | |
| Alloy structural steel | GB/T3077,JIS,ASTM A29, EN10083,(Others) | 13-260 | 20Mn2-45Mn2,25MnV,27SiMn-42SiMn,20Cr-40Cr,12CrMo-42CrMo,20CrMn,40CrMn,SCr420,SCr440,SCM420,SCM440,41Cr4,20CrMoA,30CrMoA,20Cr2MoA,20CrNiMo,20Cr2Ni4A,SAE4340,20Cr2Ni4A,30CrMnSiA etc | Mechanical,Car,Bridge,Petrochemical industry | |
| Bearing steel | GB/T18254,(Others) | 14-200/5-25 wire rod and cold drawn wire | GCr15,GCr15SiMn,C&U1,C&U2,GCr15-JN,SCP52100,SCPSS52100,GCr15S700,100CrMn6,SUJ2,SUJ2S1,SAE1055,S55C,G20CrNiMoA(SAE8620),GCr15etc | Mechanical ,Car ,Electric machinery,Engineering machinery etc | |
| Spring Steel | GB/T1222,JIS,SAE,EN,(Others) | 13-120 | 60Si2MnA,60Si2CrA,60Si2CrVA,55CrMnA,50CrVA,SUP9, SUP9A ,SUP11A, 55Cr3 ,51CrV4 ,52CrMoV4 ,SAE5160 SAE6150 ,SAE9254, 60SiCrVAT, 52CrMoV4 ,55SiCr etc | Car,High Speed railway,Locomotive | |
| Round billet | 300mm-600mm ( According to the different requirement) | ||||
| Large section bar | 80mm-350mm ( According to the different requirement) | ||||
| Forging | 180mm-1500mm ( According to the different requirement) |
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| 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) | ||||||||||
| 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) | ||||||||||
| 40ft HC:12032mm(Length)x2352m(Width)x2698mm(High) | ||||||||||
| 20feet container load 25tons coils whose length is under 5.8m | ||||||||||
| 40feet container load 25tons coils whose length is under 11.8m | ||||||||||
| Packing Details : Bundle with steel strip |
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| Delivery Details : Use trays to facilitate loading and unloading |
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| Standard Export Seaworthy Package.Suit for all kinds of transport ,or as required |
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Liaocheng Huajian Steel Co.,Ltd is located in Liaocheng, Shandong Province, which is known as "the Water City of Jiangbei", and our company was established in the year 2006. We are a modern private enterprises which are specialized in processing and exporting steel materials in China and win high reputations from our customers.
Our main items are:
1. Cold rolled steel/ galvanized steel/ galvalume steel/ prepainted steel/ corrugated steel
2. steel profiles, such as, steel angle section/ H beams/ I beams/ Channel section etc..
3. HRC MS plate, checkered steel plate, alloy steel plate /coil etc..
4. also the carbon steel/ galvanized steel round and square tubes, and stainless steel etc.
Besides, we can do customization as your demand or samples, etc..
Warmly welcome your esteemed come and visit our company and the production line.
Our current export markets are: Sorth America, North America, Europe,Australia,Africa, Asia, etc..
Adhere to the principle of"fair,objective,scientific,honest management, keeping promises, credibility honoring, following delivery schedule", Liaocheng Huajian Steel Co.,Ltd is willing to establish long-term close cooperation with our customers and make progress together to create a more brilliant future!
(1)why you chose us ?
Because we have large stocks and we have long term cooperative factories. We can get the lowest ex-factory prices. The price are quite reasonable and it is lower than our commercial peers. Also, we can guarantee the quality of our products.
(2) Our minimum order quantity:
15 Metric Tons
(3)How about the Delivery Time?
The steel pipe will be produced since we getting your deposit by T/T or original L/C, and delivery to the port of loading within 25~30 days.
For normal size, some stocks in our factory now, we can shipment within 7~10 days after receive the deposit.
(4) What kind of payment does your company support?
T/T, 100% L/C at sight.
(5)Do you charge for the samples?
No, we provide samples free, you pay for the freight charge.
(6) Main market:
Mid East South America South Asia Africa Southeast Asia Northern Europe Western Europe etc.
If you are interested in our products, please contact with me freely !
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