4028H/H40280
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Technical specifications of ASTM hardenability requirement alloy structural steels 4028H data sheet, H40280 Chemical compositions,ASTM 4028H/H40280 Mechanical properties from Steelmaking, ESR melted, Blooming, Hot forging,Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working, Peeled or rough turned machining. Technical specification ASTM A304 -2004. We also possess the advanced precision machining equipments for catering for your different special requirements.
TECHNICAL DATASHEET - ASTM 4028H / H40280
MATERIAL CATEGORY: ASTM Hardenability requirement alloy structural steel
MATERIAL SPECIFICATIONS: ASTM A304 -2004
MATERIAL CATEGORY: ASTM Hardenability requirement alloy structural steel
MATERIAL SPECIFICATIONS: ASTM A304 -2004
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.24 ~ 0.30
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.24 ~ 0.30
Si (%): 0.15 ~ 0.35
Mn (％): 0.60 ~ 1.00
Mn (％): 0.60 ~ 1.00
P (％)≤: 0.025
S (％)≤: 0.035 ~ 0.050
Cr (%): -
Mo (%): 0.20 ~ 0.30
Ni (%): -
END-QUENCH (hardenability) TEST TEMPERATURE
Heat treatment temperature /normalizing: 900 ℃
Heat treatment temperature /quenching: 870 ℃
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 SUPPLYING FORMS
Round bar (Diameter): 0.50mm 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 with flanks / discs /tubes /slugs /donuts /cubes /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 SUPPLYING FORMS
Round bar (Diameter): 0.50mm 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 with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM requirement.
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