AISI/SAE 4140 Alloy Steel Bar
SKU: HC-1137084488750948352
AISI 4140 steel bar is made of a low alloy steel containing chromium, molybdenum and manganese. It has a high carbon content and a good balance of strength, toughness, wear resistance, impact resistance and heat treatment capabilities.
Key Features
- ✓Third-Party Inspection Support
- ✓Sufficient Inventory Supply
- ✓International Standard Certification
- ✓Custom Processing Service
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Product Description
AISI 4140 steel bar is made of a low alloy steel containing chromium, molybdenum and manganese. It has a high carbon content and a good balance of strength, toughness, wear resistance, impact resistance and heat treatment capabilities. 4140 steel is a 1% chromium-molybdenum general-purpose high-strength steel, usually hardened and tempered in the tensile range of 850-1000 Mpa. 4140 steel has improved machinability, which greatly increases feed and speed, while extending tool life without affecting mechanical properties. The prehardening and tempering 4140 can be further case hardened by flame or induction hardening and nitriding. AISI4140 steel bars have high strength, hardenability, good toughness, small deformation during quenching, and high creep strength and durable strength at high temperatures.
Product Parameters
| Product Name | AISI/SAE 4140 Alloy Steel Bar | |||
| Standard | EN / DIN / JIS / ASTM / BS / ASME / AISI,etc. | |||
| Common Round Bar Specifications | 3.0 - 50.8 mm,Over 50.8 - 300mm | |||
| Flat Steel Common Specifications | 6.35x12.7mm,6.35x25.4mm,12.7x25.4mm | |||
| Hexagon Bar Common Specifications | AF5.8mm - 17mm | |||
| Square Bar Common Specifications | AF2mm - 14mm,AF6.35mm,9.5mm,12.7mm,15.98mm,19.0mm,25.4mm | |||
| Length | 1 - 6 meters,Size Accept Custom | |||
| Diameter(mm) | Hot Rolling R ound Bar | 25 - 600 | Cold Rolling Square Bar | 6 - 50.8 |
| Hot Rolling Square Bar | 21 - 54 | Cold Rolling Hexagon Bar | 9.5 - 65 | |
| Cold Rolling Round bar | 6 - 101.6 | Forged Rebar | 200 - 1000 | |
| Surface Process | Bright,Polished,Black | |||
| Other Services | Machining(cnc),Centerless Grinding(cg),Heat Treatment,Annealing,Pickling,Polishing,Rolling,Forging,Cutting,Bending,Small Machining,etc. | |||
Chemical Composition
| Grade | Mn | S | C | P | Si | Cr | Ni |
|---|---|---|---|---|---|---|---|
| AISI 4140 | 0.75-1.00 | 0.035 | 0.38-0.43 | 0.035 | 0.20-0.35 | 0.8-1.1 | 0.15-0.25 |
Mechanical Properties
| Grade | Tensile Strength psi | Yield Strength psi | Elongation % | Hardness HRC |
|---|---|---|---|---|
| AISI 4140 | 100k | 80k | 20 | 18-22 |