4340H / H43400
2025-01-20 15:26:00 Origin： Remark：0 Click：
Technical specifications of ASTM hardenability alloy structural steels 4340H round bar, flat bar, plate H43400 ESR melted, Hot forging,Hot rolling, Heat treatment
TECHNICAL DATA SHEET - ASTM 4340H & H43400
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 (％): 0.55 ~ 0.90
Manganese, Mn (％): 0.55 ~ 0.90
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.025
Chromium, Cr (%): 0.65 ~ 0.95
Molybdenum, Mo (%): 0.20 ~ 0.30
Nickel, Ni (%): 1.55 ~ 2.00
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 EF, LF + EAF+ VD, IFF + 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 AND DIMENSION
Rod / round bar / disc (diameter): 5.50mm to 800mm
Square bar / flat bar: 3mm to 800mm
Length: random length, fixed length or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Heavy/middle plate via hot rolled: T4 - 200mm X W1000- 2500mm X L1000-12000mm
Forging piece: stepped shafts, other different shapes based on OEM requirement.
The steels shall be manufactured by melting process EF, LF + EAF+ VD, IFF + 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 AND DIMENSION
Rod / round bar / disc (diameter): 5.50mm to 800mm
Square bar / flat bar: 3mm to 800mm
Length: random length, fixed length or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Heavy/middle plate via hot rolled: T4 - 200mm X W1000- 2500mm X L1000-12000mm
Forging piece: stepped shafts, other different shapes based on OEM requirement.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. - Email us: sales@ccsteels.com.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. - Email us: sales@ccsteels.com.
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