Fast delivery AISI 4140 4130 1020 1045 Carbon Steel Round Bar Alloy Steel Bars
To satisfy the customers’ over-expected pleasure , we’ve our strong group to supply our greatest over-all provider which incorporates promoting, revenue, coming up with, output, quality managing, packing, warehousing and logistics for Fast delivery AISI 4140 4130 1020 1045 Carbon Steel Round Bar Alloy Steel Bars, We sincerely welcome customers from both at home and abroad to come to negotiate business with us.
To satisfy the customers’ over-expected pleasure , we’ve our strong group to supply our greatest over-all provider which incorporates promoting, revenue, coming up with, output, quality managing, packing, warehousing and logistics for SAE4140 STEEL BAR STEEL ROUND BAR, To win customers’ confidence, Best Source has set up a strong sales and after-sales team to supply the best product and service. Best Source abides by the idea of “Grow with customer” and philosophy of “Customer-oriented” to achieve cooperation of mutual trust and benefit. Best Source will always stand ready to cooperate with you. Let’s grow together!
Features
4130 4135 4140 4145H steel bars are a low carbon alloy steel. They are belong to Chrome-Molly alloy that contains chromium and molybdenum as strengthening agents.
4130 round steel bar has good work ability, minimal processing deformation, and excellent fatigue resistance. It belongs to the category of medium to high harden ability steel. After heat treatment, 4140 has good strength and comprehensive mechanical properties, good process ability, and high yield. The service temperature is 427 degrees Celsius.
4140 has high strength, harden ability, toughness, and deformation during quenching. It has high creep strength and endurance strength at high temperatures. Used for manufacturing forgings that require higher strength and larger quenched and tempered sections than 4135 steel, such as large gears for locomotive traction, booster transmission gears, rear axles, connecting rods and spring clips that are heavily loaded.
Specification
| Product Name | AISI ASTM 4130 4135 4140 Alloy Steel Bar | |
| Material | ASTM | 4130,4135 4140,4145H |
| DIN | 1.7218 1.7225 1.7220 | |
| GB | 30CrMo 35CrMO 42CrMo | |
| Standard | GB/T799, ASTM A29, A108, A321, A575, BS970, DIN1652, JIS G4051 | |
| OD | 6mm to 600mm | |
| Surface | Black painted, Bare, Polished, Chrome Plated | |
| Specifications | Round bar | 8mm~800mm |
| Angle bar | 3mm*20mm*20mm~12mm*800mm*800mm | |
| Square bar | 4mm*4mm~100mm*100mm | |
| Flat bar | 2*10mm~100*500mm | |
| Hexagonal | 4mm~800mm | |
| Process | Electric furnace melted， forged and annealed, round bar turned. | |
| Hardness: | HBS 217Max (Different from heat treatment) | |
| UT Test | SEP 1921/84/2 C/c class. | |
| Tolerance | Dia -0/+ 0~5mm, Thickness -0/+ 0~5mm, Width: -0/+ 0~10mm. | |
| Length | 2m,4m,5.8m,6m,11.8m,12m or as required. | |
| Package | Seaworthy Packing. | |
| Equal dIfferent standard | |||
| AISI | GB | DIN | JIS |
| 4130 | 30CrMo | 1.7218 | SCM420 |
| 4140 | 42CrMo | 1.7225 (42CrMo4) | SCM440 |
| 4135 | 35Crmo | 1.7220（34CrMo4） | SCM432 |
| 4145H | — | — | — |
Chemical Composition
| Chemical Composition (%) | |||||||
| Grade | C | Si | Mn | P | S | Cr | Mo |
| 4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | ≤0.035 | ≤0.040 | 0.80-1.10 | 0.15-0.25 |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.0 | ≤0.035 | ≤0.040 | 0.80-1.10 | 0.15-0.25 |
| 4135 | 0.33-0.38 | 0.15-0.35 | 0.75-0.9 | ≤0.035 | ≤0.040 | 0.80-1.10 | 0.15-0.25 |
| 4145 | 0.43-0.48 | 0.15-0.35 | 0.75-1.0 | ≤0.035 | ≤0.040 | 0.80-1.10 | 0.15-0.25 |
Mechanical Properties
| Characteristics: |
| 1.Low alloy steel containing molybdenum and chromium as strengthening agents; |
| 2.Excellent from the fusion weldability standpoint; |
| 3.The alloy can be hardened by heat treatment. |
Tolerance
| Delivery Condition |
| 1.Hot rolled |
| 2.Annealed |
| 3.Normalized |
| 4. Quench and Tempered |
Conditions of heat treatment
1.Annealing: 880℃ Furnace cooling
2.Normalization: 880~870℃ Air cooling
3.Hardening: 820~870℃ Water cooling
4.Tempering: 550~650℃ Rapid cooling
Mechanical Properties can be gotten by different heat treatment.
Package
1.By bundles, each bundle weight under 3 tons, for small outer
diameter round bar, each bundle with 4 – 8 steel strips.
2.20 feet container contains dimension, length under 6000mm
3.40 feet container contains dimension, length under 12000mm
4.By bulk vessel, Freight charge is low by bulk cargo, and large
heavy sizes can not be loaded into containers can shipping by bulk cargo
Quality assurance
1.Strict according to Requirements
2. Sample: Sample is available.
3. Tests: Salt spray test/Tensile test / Eddy current / Chemical composition test according to customers’ request
4.Certificate: IATF16949, ISO9001, SGS etc.
5. EN 10204 3.1 Certification
To satisfy the customers’ over-expected pleasure , we’ve our strong group to supply our greatest over-all provider which incorporates promoting, revenue, coming up with, output, quality managing, packing, warehousing and logistics for Fast delivery AISI 4140 4130 1020 1045 Carbon Steel Round Bar Alloy Steel Bars, We sincerely welcome customers from both at home and abroad to come to negotiate business with us.
Fast delivery China BS4449 Grade 500b Steel Rebars and Steel Rebar HS Code, To win customers’ confidence, Best Source has set up a strong sales and after-sales team to supply the best product and service. Best Source abides by the idea of “Grow with customer” and philosophy of “Customer-oriented” to achieve cooperation of mutual trust and benefit. Best Source will always stand ready to cooperate with you. Let’s grow together!
