- EN31 Alloy Steel round bar
- EN31 Alloy Steel forging
- EN31 Alloy Steel sheet
- EN31 Alloy Steel flat bar
- EN31 Alloy Steel pipe
EN31 Alloy Steel
Production specification
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
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EN31 Alloy Steel
EN31 is a high carbon steel/" target="_blank" class="keylink">alloy steel which achieves a high degree of hardness with compressive strength and abrasion resistance. |
TYPICAL ANALYSIS |
|
||
C. |
Mn. |
Cr. |
Si. |
1.00% |
0.50% |
1.40% |
0.20% |
Forging:
Forge at 1000°/1050°C. Heat slowly, allowing sufficient time at the forging temperature for the steel to be thoroughly soaked through. Re-heat as often as necessary to keep the temperature above 850°C. After forging cool very slowly, preferably in a furnace.
Annealing:
Heat uniformly to 800°C, equalise, then furnace cool. (Hardness about 229 Brinell).
Stress Relieving:
If machining operations have been heavy or if the tool has an unbalanced section, remove stresses before hardening by heating up to 700°C, equalise, then cool slowly.
Hardening:
Heat uniformly to 800/820°C until heated through. Allow 30 minutes per inch of ruling section and quench immediately in oil.
Tempering:
Heat uniformly and thoroughly at the selected tempering temperatures and hold for at least one hour per inch of total thickness.
Tempering °C |
100 |
150 |
200 |
250 |
300 |
350 |
HRc |
64/63 |
63/62 |
62/61 |
60/59 |
57/56 |
54/53 |
Mechanical properties
Heat treatment
Machining
Welding performance
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