4140H / H41400
2025-05-02 17:49:00 Origin： Remark：0 Click：
Technical specifications hardenability alloy structural steels 4140H Round bar, Plate, Rod, Sheet, , ESR melted, Hot blooming / forging / rolling, Heat treatment
TECHNICAL DATA SHEET - AISI 4140H & H41400
MATERIAL CATEGORY: ASTM Hardenability requirement alloy structural steel
MATERIAL SPECIFICATIONS: ASTM A304 -2004
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.37 ~ 0.44
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.37 ~ 0.44
Silicon, Si (%): 0.15 ~ 0.35
Manganese, Mn (％): 0.65 ~ 1.10
Manganese, Mn (％): 0.65 ~ 1.10
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.025
Chromium, Cr (%): 0.75 ~ 1.20
Molybdenum, Mo (%): 0.15 ~ 0.25
Nickel, Ni (%): -
END-QUENCH (hardenability) TEST TEMPERATURE
Heat treatment temperature /normalizing: 870 ℃
Heat treatment temperature /quenching: 845 ℃
MAIN FEATURES AND MELTING PROCESS
The steels shall be manufactured by melting process EAF+ VD, BEF + ESR Melted. VIM + ESR can be handled by agreement.
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.
The steels shall be manufactured by melting process EAF+ VD, BEF + ESR Melted. VIM + ESR can be handled by agreement.
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.
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.
PRODUCT PROFILE
Rod / rround bar / disc (diameter): 5.50mm to 800mm
Square bar / flat bar: 8mm to 600mm
Length: random length, fixed length or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 200mm X Coil
Heavy/middle plate via hot rolled: T4 - 200mm X W15- 1200mm X L1000-12000mm
Forging piece: stepped shaft, and other different shapes based on OEM requirement.
TECHNICAL SALES ASSISTANCE & SERVICE
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If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
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