EN21A
2020-10-03 08:41:17 Origin： Remark：0 Click：
EN 21A is a middle carbon Nickel base high tensile steel, Round bar, flat bar, forgings fabricated from Steelmaking, Blooming, Hot forging, Hot rolling, Heat treat, Cold machined.
TECHNICAL DATA SHEET - Grade EN21A
MATERIAL CATEGORY - low alloy steel with high tensile
TECHNICAL SPECIFICATION - BS970 Part 3
TECHNICAL SPECIFICATION - BS970 Part 3
CHEMICAL COMPOSITIONS (mass weight - %)
Carbon, C (％): 0.20 ~ 0.30
Manganese, Mn (％): 0.45 ~ 0.85
Silicon, Si (％): 0.10 ~ 0.35
Phosphorus, P (％)≤: 0.035
Sulfur, S (％)≤: 0.015
Chromium, Cr (%): -
Nickel, Ni (%): 2.75 ~ 3.25
Molybdenum, Mo (%): -
MECHANICAL PROPERTY AND HARDNESS
Quenching temperature /℃: 840, oil
Tempering temperature /℃: 580, water or oil
Tensile strength,σb/≥ MPa: 590 ~ 740
Carbon, C (％): 0.20 ~ 0.30
Manganese, Mn (％): 0.45 ~ 0.85
Silicon, Si (％): 0.10 ~ 0.35
Phosphorus, P (％)≤: 0.035
Sulfur, S (％)≤: 0.015
Chromium, Cr (%): -
Nickel, Ni (%): 2.75 ~ 3.25
Molybdenum, Mo (%): -
MECHANICAL PROPERTY AND HARDNESS
Quenching temperature /℃: 840, oil
Tempering temperature /℃: 580, water or oil
Tensile strength,σb/≥ MPa: 590 ~ 740
Yield strength, σ0.2/≥ MPa: 410
Elongation, δ ≥(％): 20.0
Reduction of area, ф ≥(％): 55.0
Hardness in annealed condition: -
MELTING PROCESS & APPLICATION
This alloy is generally smelt in Electric Arc Furnace (EAF), EAF+LF+VD, BEF + Electroslag remelting (ESR).
For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement.
It is suitable for applications such as high tensile shafts, bolts and nuts, gears, pinions spindles and so on.
AVAILABLE FORMS & DIMENSIONS
Round bar (diameter): 5.5mm to 400mm
Square bar / flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com.
Elongation, δ ≥(％): 20.0
Reduction of area, ф ≥(％): 55.0
Hardness in annealed condition: -
MELTING PROCESS & APPLICATION
This alloy is generally smelt in Electric Arc Furnace (EAF), EAF+LF+VD, BEF + Electroslag remelting (ESR).
For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement.
It is suitable for applications such as high tensile shafts, bolts and nuts, gears, pinions spindles and so on.
AVAILABLE FORMS & DIMENSIONS
Round bar (diameter): 5.5mm to 400mm
Square bar / flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com.
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