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EN31 Alloy Steel

We can produce EN31 Alloy Steel stainless steel round rods, EN31 Alloy Steel forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control EN31 Alloy Steel chemical composition and EN31 Alloy Steel mechanical properties.From casting, forging, steel to hot and cold rolling process, heat treatment, etc, we have the control of professional engineers. We have advanced precision machining equipment, according to the requirements of users machining. in order to achieve the most satisfied with the user requirements.

Production specification

Round bar steel: 1mm to 3500mm
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.
We serve you with our honesty, integrity, and professionality.

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

EN31 Alloy Steel Mechanical properties,Our production completely according to the EN31 Alloy Steel standards to meet the EN31 Alloy Steel mechanical performance, can also according to the customer request, to meet the requirements of customers of EN31 Alloy Steel mechanical properties.

Heat treatment

EN31 Alloy Steel Heat treatment,Our production completely according to the EN31 Alloy Steel standards to meet the EN31 Alloy Steel Heat treatment, can also according to the customer request, to meet the requirements of customers of EN31 Alloy Steel Heat treatment.

Machining

EN31 Alloy Steel Machining,Our production completely according to the EN31 Alloy Steel standards to meet the EN31 Alloy Steel Machining, can also according to the customer request, to meet the requirements of customers of EN31 Alloy Steel Machining.

Welding performance

EN31 Alloy Steel Welding performance,Our production completely according to the EN31 Alloy Steel standards to meet the EN31 Alloy Steel Welding performance, can also according to the customer request, to meet the requirements of customers of EN31 Alloy Steel Welding performance.

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