TS4140
2025-05-02 17:44:00 Origin： Remark：0 Click：
SAE J1249 Technical specifications alloy structural steel TS4140 Round bar, Flat bar, Plate Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment
TECHNICAL DATA SHEET - SAE TS4140
MATERIAL CATEGORY: SAE, AISI, UNS system alloy structural steel
MATERIAL SPECIFICATIONS: SAE J1249 -2000
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.38 ~ 0.45
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.38 ~ 0.45
Silicon, Si (%): 0.20 ~ 0.35
Manganese, Mn (％): 0.80 ~ 1.05
Manganese, Mn (％): 0.80 ~ 1.05
Phosphorus, P (％) ≤: 0.040
Sulfur, S (％) ≤: 0.040
Chromium, Cr (%): 0.90 ~ 1.20
Nickel, Ni (%): -
Molybdenum, Mo (%): 0.08 ~ 0.15
MECHANICAL PROPERTIES AND HOT WORKING
Mechanical property ≥ Rm / MPa: 1050
Mechanical property ≥ Rp0.2 / MPa: 910
Mechanical property ≥ A5 (%): 12
Mechanical property ≥ Rp0.2 / MPa: 910
Mechanical property ≥ A5 (%): 12
Mechanical property ≥ Z (％): 45
Hot working temperature /℃: 1100～850
MAIN FEATURES AND MELTING PROCESS
The steels shall be manufactured by melting process EAF+ VD, BFF + ESR Melted. VIM + ESR can be handled by agreement.
The steels shall be manufactured by melting process EAF+ VD, BFF + ESR Melted. VIM + ESR can be handled by agreement.
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners.
Mechanical gears, gear shaft, main axis, valve rods.
Mechanical parts - connecting rods, bolts and nuts.
Multidiameter shafts.
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners.
Mechanical gears, gear shaft, main axis, valve rods.
Mechanical parts - connecting rods, bolts and nuts.
Multidiameter shafts.
PRODUCT PROFILE AND DIMENSIONS
Rod / round bar / disc (diameter): 5.50mm to 900mm
Square bar / flat bar: 8mm to 600mm
Length: random length or per the buyer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 200mm X Coil
Heavy/middle plate via hot rolled: T4 - 200mm X W10 - 1200mm X L1000-12000mm
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 our resident team of qualified production engineers.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
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