4340V
2025-10-10 08:07:00 Origin： Remark：0 Click：
SA-540 Material Specifications 4340V Mod. Ex-stock, Round bar 4340V Plate from Steelmaking, ESR melted, Hot forging, Hot rolling, Heat treatment, Cold working,
TECHNICAL DATA SHEET - 4340V
Material category: alloy steel bolting materials for special applications
Material specifications: SA-540
Official test report: issued by TUV - SGS - BV
Typical chemical elements (mass weight %)
Carbon, C (％): 0.37 ~ 0.44
Silicon, Si (％): 0.15 ~ 0.35
Manganese, Mn (％): 0.60 ~ 0.95
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 0.60 ~ 0.95
Nickel, Ni (%): 1.55 ~ 2.00
Molybdenum, Mo (％): 0.40 ~ 0.60
Typical chemical elements (mass weight %)
Carbon, C (％): 0.37 ~ 0.44
Silicon, Si (％): 0.15 ~ 0.35
Manganese, Mn (％): 0.60 ~ 0.95
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 0.60 ~ 0.95
Nickel, Ni (%): 1.55 ~ 2.00
Molybdenum, Mo (％): 0.40 ~ 0.60
Vanadium, V (%): 0.04 ~ 0.10
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Bar size: 4 inches
Bar size: 4 inches
Tensile strength, σb ≥ MPa: 1000
Yield strength, σs ≥ MPa: 900
Elongation, δ5 ≥ (%): 12.0
Reduction of area ф ≥ (％): 40.0
Yield strength, σs ≥ MPa: 900
Elongation, δ5 ≥ (%): 12.0
Reduction of area ф ≥ (％): 40.0
Surface hardness: HBW 293 ~ 363
MAIN FEATURES AND MELTING PROCESS
The steels shall be manufactured by melting process EAF + LF + VD, EAF + LF + VD + ESR, IFF + ESR, VIM + VAR Melted and shall be finished by hot-rolled / hot forged / cold finished.
Forgings may be furnished in one of the following conditions: stress relieving; annealing; solution treatment; solution treatment and ageing; normalizing; normalizing and tempering; or quenching and tempering.
PRODUCT PROFILE AND DIMENSIONS
Round bar & disc (diameter): 6.0 to 800mm
Square bar / flat bar: 10 to 800mm
Length: random length, or based on the customer's special requirement.
Steel strip: T0.5 ~ 3mm X W10 ~ 1000mm X Coil
Heavy/middle plate via hot rolled: T6 - 400mm X W100 - 1200mm X L1000 - 4000mm
Forging piece: stepped shafts, other different shapes based on OEM.
The steels shall be manufactured by melting process EAF + LF + VD, EAF + LF + VD + ESR, IFF + ESR, VIM + VAR Melted and shall be finished by hot-rolled / hot forged / cold finished.
Forgings may be furnished in one of the following conditions: stress relieving; annealing; solution treatment; solution treatment and ageing; normalizing; normalizing and tempering; or quenching and tempering.
PRODUCT PROFILE AND DIMENSIONS
Round bar & disc (diameter): 6.0 to 800mm
Square bar / flat bar: 10 to 800mm
Length: random length, or based on the customer's special requirement.
Steel strip: T0.5 ~ 3mm X W10 ~ 1000mm X Coil
Heavy/middle plate via hot rolled: T6 - 400mm X W100 - 1200mm X L1000 - 4000mm
Forging piece: stepped shafts, 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.
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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