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SAE 4140 1.7225 SCM440 Tool Steel Bar for mechchanical
EN 1.7225 is passivated even in reducing environments such as
dilute sulphuric acid and formic acid. Its high nickel content
contributes towards its relatively low corrosion rate in the active
state.
Chemical composition(%):
C | Si | Mn | Cr | P | S | Mo |
0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.20 | ≤0.035 | ≤0.035 | 0.15-0.25 |
Equivalent grades:
GB(China) | DIN(German) | AISI(USA) | JIS(Japan) |
42CrMo | 1.7225 | SAE4140 | SCM440 |
Available size(mm):
Flat Bar Size(mm) | Round bar Size(mm) | |||
Thickness | Width | Length | Diameter | Length |
20-280 | 2000-2200 | 2000-10000 | 16-450 | 6000-10000 |
Recommend heat treatment:
Quenching | Tempering | |||||
Heating temperature/ºC | Cooling way | Hardness (HRC) | Tempering temperature /ºC | Cooling way | Hardness (HRC) | |
850-880 | Oil Cooling | 50-52 | 450-650 | Air cooling | ≥48 |
Feature:
1. Good strength, hardenability and toughness.
2. High creep strength and long lasting strength under the high
temperature.
Appliation:
Production load large, complex shape and valuable tool (e.g,
scraper, gear, milling cutter, drilling, tapping, etc.)Cold forging
die, forging tools;Strip cutting machine, heading forming die.
Ready stock : round bar dia 20-150mm
Delivery time:
For abundant stock, 15-20 days.
For customized products, 30-50 days.
Our service
We provide quality special steel for all industries.
Orders of any size, any length, ship fast
We carry a unique inventory of specialty special steel
Provide related value-adding services :
metal cutting, sizing, machining (blanking, milling, grinding), and
heat treatment.
Sawing for small or large quantities, sawing-to-size.
Excellent customer service
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