5140 Steel Plate 1.7035 41Cr4 SCr440 Alloy Steel
Classification :
Product
1. Supply Range of AISI/ASTM 5140
Round Bar: diameter 20mm – 300mm
Steel Plate and Steel Block: thickness 10-200mm x width 300-2000mm
10-80mm thickness 5140 plate are available all the time in stock,
90-200mm thickness plate to be newly production in 15-30 days lead time.
Surface Finish: Black Surface, Milled Surface or Polished Surface as per given requirements.
2. Relevant AISI 5140 Specification and Equivalent Steel Grades
| Country | USA | German | Japan |
| Standard | ASTM/AISI A29 | EN 10083-3 | JIS G4053 |
| Grades | 5140 | 41Cr4 | SCr440 |
3. ASTM 5140 Material Chemical Composition and Equivalent
| Standard | Grade/Steel Number | C | Mn | P | S | Si | Cr | Ni |
| ASTM A29 | 5140 | 0.38-0.43 | 0.70-0.90 | ≤0.035 | ≤0.040 | 0.15-0.35 | 0.70-0.90 | – |
| EN 10083-3 | 41Cr4 / 1.7035 | 0.38-0.45 | 0.60-0.90 | ≤0.025 | ≤0.035 | ≤0.40 | 0.90-1.20 | – |
| JIS G4053 | SCr440 | 0.38-0.43 | 0.60-0.90 | ≤0.030 | ≤0.030 | 0.15-0.35 | 0.90-1.20 | ≤0.25 |
4. AISI 5140 Steel Properties
| Property | Value in metric unit | Value in US unit | ||
| Density | 7.872 *10³ | kg/m³ | 491.4 | lb/ft³ |
| Modulus of elasticity | 205 | GPa | 29700 | ksi |
| Thermal expansion (20 ºC) | 12.6*10-6 | ºCˉ¹ | 7.00*10-6 | in/(in* ºF) |
| Specific heat capacity | 452 | J/(kg*K) | 0.108 | BTU/(lb*ºF) |
| Thermal conductivity | 44.7 | W/(m*K) | 310 | BTU*in/(hr*ft²*ºF) |
| Electric resistivity | 2.28*10-7 | Ohm*m | 2.28*10-5 | Ohm*cm |
| Tensile strength (annealed) | 572 | MPa | 83000 | psi |
| Yield strength (annealed) | 293 | MPa | 42500 | psi |
| Elongation (annealed) | 29 | % | 29 | % |
| Hardness (annealed) | 85 | RB | 85 | RB |
| Tensile strength (normalized) | 793 | MPa | 115000 | psi |
| Yield strength (normalized) | 472 | MPa | 68500 | psi |
| Elongation (normalized) | 23 | % | 23 | % |
| Hardness (normalized) | 98 | RB | 98 | RB |
5. Forging of 5140 Alloy Steel
Hot forming temperature: 1050-850℃.
6. ASTM 5140 Steel Heat Treat
Soft Annealing
Heat to 680-720℃, cool slowly. This will produce a maximum 5140 hardness of 241HB (Brinell hardness).
Noramlizing of steel grade 5140
Temperature: 840-880℃.
Hardening of 5140 forged steel
Harden from a temperature of 820-850, 830-860℃ followed by water or oil quenching.
Tempering of SAE 5140 material
Tempering temperature: 540-680℃.
7. Applications of AISI Grade 5140
AISI 5140 steel can be used for low and moderately stressed parts for vehicles, engines and machines where hard, wear resisting surface is needed. Hardness as surface hardened about 54 HRC. SAE 5140 steels can also be for marine engineering industry, chemical processing plants, boiler & pressure vessels, nuclear power plants etc.
If you have queries about the 5140 specs, or any questions about the 5140 vs 4130, 5140 vs 4340 etc, please contact us for technical support any time.
Storage video
Warehouse storage
The group company and factory cover an area of more than 800 mu, with more than 1,500 employees, and its business covers more than 20 countries and regions around the world. Xinghan Group is committed to developing new types of steel products and building a first-class coated sheet and steel manufacturing enterprise with international competitiveness. Xinghan Group hopes to grow into a widely respected and sustainable global resource-based enterprise through continuous pursuit of excellence, create better social, economic and environmental benefits, and bring more competitive value returns to employees and customers.

Packing and delivery
The company has major production lines such as pickling, cold rolling, hot dip galvanizing, hot dip galvanizing, thick plate galvanizing and color coating, forming an annual production capacity of 1 million tons of pickling coil, 1 million tons of cold rolled sheet and 900,000 tons of hot dip galvanized sheet. Galvanized and hot-dip galvanized aluminum zinc silicon steel sheet scale 450,000 tons thick galvanized steel plate scale 300,000 tons color coated steel plate scale is one of the largest steel and non-ferrous metal smelting and processing suppliers in Shandong Province.

Customer visit
The company adheres to the development strategy of "seeking development by science and technology, seeking efficiency by management", adheres to the core values of "people-oriented, integrity, responsibility and excellence", adheres to the development system of "green products and green industry", "promotes high-quality beyond development in an all-round way", and realizes the vision of "building a first-class aluminum processing service enterprise with international competitiveness".

Application field
The main supply fields are: aerospace, national defense equipment, military weapons, chemical industry, shipbuilding, nuclear energy, trains, containers, environmental protection, precision machining, auto parts, machinery, electronic products, molds, medical treatment Equipment, construction, decoration, etc.

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FAQ
Q:How long is your delivery time?
A:Within 5 days for stock size, 15-30 days for customized size.
Q:How can I get an accurate quote?
A:Please provide the information of prodcuts standard, material, size and quantity.
Q:When can I get your reply after the inquiry.
A:Within 15 minutes during working time, whthin 12 hours during non-working time.
Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness,coating and the number of tons you need to purchase.
Q:Can you provide sample ?
A: We can provide the samll samples in stock for free, as long as you contact us. Customized samples will take about 5-7days.
Q:How many coutries you already exported ?
A: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, etc.
Q: Can we visit your factory?
A: Sure, we welcome you to visit our factory , check our production lines and know more about our strength and quality.
Q:Can you send samples?
A:Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
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