Hot Rolled Round Bar 40cr JIS SCr440 DIN 1.7035 Alloy Structure Steel Forged Steel Soild Bar
Hot Rolled Round Bar 40cr JIS SCr440 DIN 1.7035 Alloy Structure Steel Forged Steel Soild Bar
Chemical composition
| C(％) | 0.37～0.44 | Si(％) | 0.17～0.37 | Mn(％) | 0.50～0.80 | P(％) | ≤0.030 |
| S(％) | ≤0.030 | Cr(％) | 0.80～1.10 |
Mechanical Properties
The mechanical properties of annealed GB 40CR alloy steel are outlined in the table below
| Tensile | Yield | Bulk modulus | Shear modulus | Poisson’s ratio | Izod Impact |
| KSI | KSI | KSI | KSI | ft.lb | |
| 76900 | 55800 | 20300 | 11600 | 0.27-0.30 | 84.8 |
Heat treatment Related
- Annealing of 40CR Alloy structural steel
Slowly heated to 850 ℃ and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. The 40CR alloy steel will get MAX 250 HB (Brinell hardness).
- Hardening of 40CR Alloy structural steel
Heated slowly to 880-920°C, Then after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.
Equivalent Of 40Cr alloy Structure Steel
| USA | Germany | China | Japan | France | England | Italy | Poland | ISO | Austria | Sweden | Spain |
| ASTM/AISI/UNS/SAE | DIN,WNr | GB | JIS | AFNOR | BS | UNI | PN | ISO | ONORM | SS | UNE |
| 5140 / G51400 | 41Cr4 / 1.7035 | 40Cr | SCr440 | 42C4 | 530A40 / 530M40 | 41Cr4 | 2245 |
Applications
GB 40CR steel is widely used for a variety of applications in the used in the automotive and engineering industries for toolholders and other such components. Typical applications such as valve bodies, pumps and fittings, Shaft, the high load of wheel, bolts, double-headed bolts, gears, etc
Regular size and Tolerance
Steel round bar: Diameter Ø 5mm – 3000mm
Steel plate: Thickness 5mm – 3000mm x Width 100mm – 3500mm
Steel Hexagonal bar: Hex 5mm – 105mm
Others 40CR have not specified size, pls contact our experienced sales team.
FAQ
Q: Are you manufacture or Trading company ?
A:We are a professional manufacture with 1.5 Million tons of steel annually in China,We have passed The factory inspection by various international organizations and have own sales team.Welcome to seeing and inspecting our factory.
Q:do you have quality control systerms?
A:Yes,We have ISO,BV,SGS Certifications and our own quality control laboratory.
Q:How long is your delivery time ?
A:With 7-15 days after we receiving the deposit or L/C at Sight,Longer lead time will be required for special designed products.
Q:Do you provide samples ?Is it free or extra ?
A:Yes,we can offer the sample for free charge but the delivery charge will be covered by customers.
Q:Do you provide after-sale service ?
A:We provide after-sale service and offer 100% guarantee on our products.
Contact us
- We provides samples and third-party testing services free of charge according to customer requirements.
- We are responsible for the overall quality tracking of the steel sold, so as to eliminate your worries.
- Customers can customize their own size or other requirements at will.
- If you want to get more informations please contact us any time!
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