EN51 / EN 51
2024-10-28 07:45:00 Origin： Remark：0 Click：
BS 970- 5 Specification High Tensile Strength alloy Steel EN51 Round bar, Flat bar, Plate, ESR ingot, Hot forging, Hot rolling, Heat treatment
TECHNICAL DATA SHEET - EN51
MATERIAL CATEGORY - low alloy steel with high tensile
TECHNICAL SPECIFICATION - BS 970 Part 5
TECHNICAL SPECIFICATION - BS 970 Part 5
CHEMICAL COMPOSITIONS (mass fraction - %)
Carbon, C (％): 0.25 ~ 0.35
Manganese, Mn (％): 0.35 ~ 0.75
Silicon, Si (％): 0.10 ~ 0.35
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.025
Chromium, Cr (%): 0.20 ~ 0.40
Nickel, Ni (%): 2.75 ~ 3.25
Molybdenum, Mo (%): -
MECHANICAL PROPERTY AND HARDNESS
Quenching temperature /℃:820, oil cooled
Tempering temperature /℃:500
Tensile strength, Rm ≥ MPa: 980
Carbon, C (％): 0.25 ~ 0.35
Manganese, Mn (％): 0.35 ~ 0.75
Silicon, Si (％): 0.10 ~ 0.35
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.025
Chromium, Cr (%): 0.20 ~ 0.40
Nickel, Ni (%): 2.75 ~ 3.25
Molybdenum, Mo (%): -
MECHANICAL PROPERTY AND HARDNESS
Quenching temperature /℃:820, oil cooled
Tempering temperature /℃:500
Tensile strength, Rm ≥ MPa: 980
Yield strength, Rp0.2 ≥ MPa: 785
Elongation, A5 ≥ (％): 9.0
Reduction of area, Z ≥ (％): 45.0
Hardness in condition of annealing +A: HB245 max.
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 / Rod / Disc : 5.5mm to 500mm
Square bar / Flat bar: 10mm to 600mm
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 (sales@ccsteels.com) our resident team of qualified production engineers.
Reduction of area, Z ≥ (％): 45.0
Hardness in condition of annealing +A: HB245 max.
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 / Rod / Disc : 5.5mm to 500mm
Square bar / Flat bar: 10mm to 600mm
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 (sales@ccsteels.com) our resident team of qualified production engineers.
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