Guangzhou Changfeng Steel Co., LTD
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SAE5140 / SCr440 Hot Rolled Alloy Steel Round Bar For Machinery
Hot Rolled Alloy Tool Steel 1.7035 / SAE5140 / SCr440 steel is one of the most widely used steel in the machinery industry.It has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity.
♦ Similar grades:
| GB | DIN | AISI | JIS |
| 40Cr | 1.7035 | SAE5140 | SCr440 |
♦ Available size(mm):
| Flat Bar Size(mm) | Round bar Size(mm) | |||
| Thickness | Width | Length | Diameter | Length |
| 10-700 | 155-2200 | 3000-6000 | 10-300 | 3000-6000 |
♦ Feature:
Hot Rolled Alloy Tool Steel 1.7035 / SAE5140 / SCr440 steel is belong to Medium carbon steel with hardening and tempering, cold heading steel. Easy processing, after proper heat treament can obtain a certain toughness, plasticity and abrasion resistance.
♦ Chemical Composition(%):
| C | Si | Mn | Cr | P | S |
| 0.37-0.45 | 0.17-0.37 | 0.5-0.8 | 0.8-1.10 | ≤0.035 | ≤0.035 |
♦ Applications:
After hardneing & tempering, applied to use in the manufacture withstand load and moderate speeds mechancial parts, such as automotive steering knuchles, and rear axle gears, shafts, worm, spline shaft, sets and other tools on top.
After quenching and tempering heat, it is used to manufacture parts that are working in high load, impact and medium speed, such as gear, main shaft, oil pump rotor, sliding block, ring, etc.
In addition, this type of steel is suitable for the manufacture of all kinds of transmission parts, such as large diameter and low temperature toughness.
♦ Recommend heat treatment:
| Quenching | Tempering | ||||
| Heating temperature/℃ | Cooling way | Hardness (HRC) | Tempering temperature /ºC | Cooling way | Hardness (HRC) |
| 830-860 | Oil Cooling | ≥50 | 150-200 | Air Cooling | ≥48 |
♦ Delivery condition:
Hot rolled or forged, black surface
Hardenss: annealed <207HB
For abundant stock, 15-20 days.For customized products, 30-50 days.
♦ Terms of payment:
30% deposit T/T and the balance by L/C at sight, or T/T.
Product pictures:
About us:
Our company have introduced large-sized vertical saw machines, horizontal saw machines, milling machines, grinding machines and other advance equipments, we can export our products by wholesales and retail sales, whole plate or strip is available. All our products can meet the standards of DIN, AISI, JIS and GB, all the material should be inspected the ultrasonic, hardness and others strict inspection process before the shipment!
We can provide below service:
A. Steel plates: Cutting by bandsaw machine, milling, heat treatment, etc
B. Round bars: Cutting by bandsaw machine, peeling, grinding and turned, heat treatment, etc