Basic Info.
Model NO.
1.7225 18crnimo7-6 42CrMo4 En8 En19 En24 SAE AISI
Standard
AISI, ASTM, GB, JIS, DIN
Application
Structural Steel Bar, Tool Steel Bar, Die Steel Bar
Surface Treatment
Black, Pickling, Bright
Special Use
Mold Steel, Free Cutting Steel, Cold Heading Steel
Material
Q195, Q215 a, Q215 B, Q235 a, Q235 B, Q235 C, Q235D
Diameter
5-120mm or as Required
Length
300mm-1000mm and Customized
Trade Term
Fob CFR CIF EXW
Surface
Black, Pickled, Mill, Poilshed
Hot Sale Country
Middle East, Southeast Asia, South America
Sample
Free Provid But The Freight Is Borne by Buyer
Key Word
Carbon Steel Bar
Transport Package
Standard Sea Packaging or According to Customer
Product Description
Carbon Steel Round Bar is divided into three types: hot rolled, forged and cold drawn. The specification of hot-rolled round steel is 5.5-250mm. Among them: 5.5-25mm small round steel is mostly supplied in straight bars, which are often used as steel bars, bolts and various mechanical parts; round steel larger than 25mm is mainly used to manufacture mechanical parts and seamless steel pipe billets.Carbon Steel Round Rod/Bar | Material Grade | Q195,Q215 A,Q215 B,Q235 A,Q235 B,Q235 C,
Q235D,Q275,Q275B,Q275C,Q275D,Q295,Q345,Q390,Q420, Q460,
SS330,SS400,SS490,SS540,A36,1,GR.36,50(245),55(380),42(290),
60(415),65(450),S185(1.0035),S235JO(1.0114), S235JR(1.0038),
S235J2(0.0117),S275JR(1.0044),S275JO(1.10143),S355JO(1.0553),
E295(1.0050),E335(1.0060), S235J2W(1.861),S355J2W(1.8965),10#,
15#20# |
| Standard | GB,JIS,ASTM,DIN |
| Diameter | 5-120mm or as required |
| Length | 300mm-1000mm and customized. |
| Surface | Black, Pickled, Mill, Poilshed |
| Technique | Electroslag remelting and Heat treatment |
| Application | general engineering structure , cars, bridges, ships, boilers ,pressure vessels |
| Trade Terms | EXW,FOB,CIF CFR |
| Loading Port | Shanghai port, Tianjin port, Qindao port |
| Payment terms | 1) 30% deposit by T/T, the balance against copy of B/L by T/T. |
| 2) 30% deposit by T/T, the balance by L/C at sight. |
| 3) 100% L/C at sight. |
| MOQ | 1Ton |
| Packing Detail | Standard export package:Wooden pallet +paperboard +steel strip(Customized requirements are accepted) |
| Delivery time | 1.Usually,within10-20days after receiving deposit or LC.
2.According to the order quantity |
| Samples | Free samples are provided but the fright is borne by the buyer |
AISI 4340 steel is a medium carbon, low alloy steel known for its toughness and strength in relatively large sections. AISI 4340 is also one kind of nickel chromium molybdenum steels. 4340 alloy steel is generally supplied hardened and tempered in the tensile range of 930 - 1080 Mpa. Pre hardened and tempered 4340 steels can be further surface hardened by flame or induction hardening and by nitriding. The 4340 steel has good shock and impact resistance as well as wear and abrasion resistance in the hardened condition. AISI 4340 steel properties offer good ductility in the annealed condition, allowing it to be bent or formed. Fusion and resistance welding is also possible with our 4340 alloy steel. ASTM 4340 material is often utilized where other alloy steels do not have the hardenability to give the strength required. For highly stressed parts it is excellent choice. AISI 4340 alloy steel can also be machined by all customary methods.
2: 4340 Steel equivalent| Country | Japan | Germany | Britain | USA |
| Standard | JIS G4103 | EN10250 | BS970 | ASTM A29 |
| Grade | SNCM439 | 36CrNiMo4/1.6511 | EN24/817M40 | 4340 |
3: 4340 steel chemical composition| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| 4340 | 0.38-0.43 | 0.15-0.35 | 0.6-0.8 | 0.035 | 0.04 | 0.7-09 | 0.2-0.3 | 1.65-2.0 |
| 36CrNiMo4 | 0.32-0.4 | 0.4 | 0.5-0.8 | 0.035 | 0.035 | 0.9-1.2 | 0.15-0.3 | |
| EN24 | 0.36-0.44 | 0.1-0.4 | 0.45-0.7 | 0.035 | 0.04 | 1.0-1.4 | 0.2-0.35 | 1.3-1.7 |
| SNCM439 | 0.36-0.43 | 0.15-0.35 | 0.6-0.9 | 0.03 | 0.03 | 0.6-1.0 | 0.15-0.3 | 1.6-2.0 |
4: 4340 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
5: 4340 steel overviews| Size | Round | Dia 6-1200mm |
| Plate/Flat/Block | Thickness
6mm-500mm |
Width
20mm-1000mm |
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered |
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled |
| Delivery condition | Forged; Hot rolled; Cold drawn |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. |
| Payment terms | T/T;L/C;/Money gram/ Paypal |
| Trade terms | FOB; CIF; C&F; etc.. |
| Delivery time | 30-45 days |
| Application | 4340 alloy steels are used for aircraft landing gear, automotive, oil and gas drilling, warm and cold forming, machine building, transfer systems like power transmission gears and shafts, general engineering industries and structural use applicatios such as heavy duty shafts, gears, axles, spindles, couplings, pins, chucks, molds and so on. |
For hot forged rolled bar, usually the delivery condition is hot forged or rolled, annealed/QT, rough turned/Black surface.
For hot forged or hot rolled bar, usually the delivery condition is hot rolled, annealed/QT, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed/QT, milled surface/Black surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed/QT, black surface.Commen steel round bar category,grade,sizes and standard:| Category | Grades | Sizes | Standard |
| Carbon structure steel | Q195, Q215, Q235, Q275 | 16mm-250mm | GB/T700-2006 |
| Low alloy high strength structure steel | Q295, Q345, Q390, Q420, Q460 | 16mm-250mm | GB/T1591-2008 |
| Prime Carbon structure steel | 10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, JM20, SH45,S45C, C45 | 16mm-250mm | GB/T699-1999 |
| Alloy structure steel | 30Mn2, 40Mn2, 27SiMn, 42Crmo, 20Cr,40Cr,20CrMo, 35CrMo, 20CrMnTi, 30CrMnTi, 20MnVB, 20MnTiB, 45MnV, 20CrNiMo, Q345B, 35MnBM,40MnB,36Mn2V, | 16mm-250mm | GB/T3077-1999 |
| Spring Steel | 65Mn, 60Si2Mn, 50CrVA | 16mm-250mm | GB/T1222-84 |
| Bearing Steel | GCr15, GCr15GD,55SiMoV | 16mm-250mm | GB/T18254-2002 |
| Structural steels subject to end-quench hardenability requirements | 20CrMnTi, 30CrMnTi, 20Cr, 40Cr, 30CrMo, 42CrMoA, 27SiMn, 40Mn2H, 20CrNiMo, 40Mn2, q345b,35MnBM, 40MnB,45MnV. | 16mm-250mm | GB/T5216-2004 |
| Oil wells structural steel | 37Mn5, 36Mn2V | 16mm-250mm | Q/LYS248-2007 |
| Marine anchor chain steel | CM490, CM690, M30Mn2 | 16mm-250mm | YB/T66-1987 |
| GB/T18669-2002 |
| GRADE | SIZE(MM) | GRADE | SIZE(MM) |
| 8#-10# | ∮16-290 | 65Mn | ∮40-300 |
| 15# | ∮14-150 | 45Mn2 | ∮18-75 |
| 20# | ∮8-480 | 60Si2Mn | ∮16-150 |
| 35# | ∮8-480 | 20CrMnTi | ∮10-480 |
| 45# | ∮6.5-480 | 20crmnTiB | ∮16-75 |
| Q235B | ∮6.5-180 | GCr15 | ∮16-400 |
| 40Cr | ∮8-480 | ML35 | ∮8-150 |
| 20Cr | ∮10-480 | T8-T13 | ∮8-480 |
| 42CrMo | ∮12-480 | Cr12 | ∮16-300 |
| 35CrMo | ∮12-480 | Cr12MoV | ∮16-300 |
| 20CrMo | ∮12-300 | 3Cr2W8V | ∮16-300 |
| 38CrMoAL | ∮20-300 | 45Cr50Cr | ∮20-300 |
| 5CrMnMo | ∮20-450 | 20CrMnMo | ∮20-300 |
| 16Mn(Q345B) | ∮14-365 | 40Mn2 | ∮28-60 |
| 50Mn | ∮40-200 | 35Cr | ∮55 |
| 15CrMo | ∮20-75 | 15Mn | ∮32∮170 |
| 25# | ∮16-280 | 40CrMnMo | ∮80-∮160 |
| YF45MnV | ∮28-80 | 20CrMnMo | ∮20-300 |
| 30# | ∮6.5-480 | 27 SiMn | ∮20-350 |
| 30Crmo | ∮28 | Crwmn | ∮20-300 |
| 30CrmnTi | ∮16-300 | H13(4Cr5MoSiVi) | ∮20-300 |
| 60# | ∮210.∮260 | 40crNimo | ∮20-400 |
Factory direct sale high quality carbon steel rods/bars
Carbon steel round bar can be used in many fields such as building, automobile, shipbuilding, petrochemical, machinery, medicine, food, electric power, energy, space, building and decoration, etc. It be made into mould template, mortise pin, column .This kind of steel have good mechanical property, is widely used in structural parts which may support stress alternation, especially made into some connecting rods, bolts, wheel gear.
At present, we have five finishing rolling production lines and two hot rolling production lines . Further more advanced automatic width control system (AWC), automatic thickness control system (AGC), bending roll system, work roll channeling roll system and other effective measures are adopted to guarantee product quality. Well-equipped production lines and advanced control systems work together to make sure all the stainless steel products we made are in line with the national standards.OUR SERVICE:
1.Provide free sample.
2.We have full stock and can deliver within short time.
3.OEM and ODM order are accepted, Any kind of logo printing or design are available.
4.We offer you the different types of product.
5.Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you.
6.All of our products are produced by our professional workman and we have our high-work-effect foreign trade team, you can
totally believe our service.
After you choose:
1. We will count cheapest shipping cost and send it to your email.
2. Start production immediately after receiving the advance payment.
3.About 10-15 working days to complete the production, and then the customer side to pay the balance.
Address:
1288-707 Guangrui Road, Liangxi District, Wuxi, Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Construction & Decoration, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000, OHSAS/ OHSMS 18001, IATF16949, HSE, ISO 14064, QC 080000, GMP, BSCI
Company Introduction:
Wuxi Jiangbanghaoda Steel Co., Ltd is located in Wuxi city of China, which is a private enterprise with more than ten years history in steel products business area. We have sales department, operation department, design department and after-sales service department etc., It′s predecessor is doing steel domestic trade. After years of development, we have became one of the excellent steel export supplier in the province.
1. Our products: Steel products, like steel plate, coil, pipe, bar and profile in material of stainless steel, carbon steel, galvanized steel, alloy steel etc.,
2. Our philosophy: Keeping faith, emphasising on quality.
3. Our customer base and area: Engineering construction, mechanical processing and assembly, automobile manufacturing in Asia, Europe, South America, Africa, Middle East.
4. Our advantage: 1)we can provide competitive price as Wuxi city is the biggest steel trading center and distribution center in China 2)delivery is guaranteed as we have strict regulations
With years of development, we have won the trust of users with complete specifications and low-cost operating advantages, and with the service concept of keeping promise and emphasizing quality, we also have gotten the trust and unanimous praise of the majority of users.
In the future, we will keep treating all the customers with high product quality and servece. Our goal is to be one of the top steel export suppliers of the Country.
