SAE 8740
2016-06-06 13:40:11 Origin： Remark：0 Click：
Description AISI 8740 Suppliers, Inventory SAE 8740 Round bar, Stocklist SAE 8740 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 SAE J1249 -2000. We also possess the advanced precision machining equipments for catering for your different special requirements.
TECHNICAL DATA SHEET - Grade SAE 8740
MATERIAL CATEGORY - SAE, AISI, UNS system alloy structural steel
MATERIAL SPECIFICATIONS - SAE J1249 -2000
MELTING PROCESS - EAF / AOD / + ESR
H S CODE For Customs - 7228 4000 / 7228 5000 / 7228 6000
OFFICIAL TEST CERTIFICATE - issued by TUV - SGS - BV
CHEMICAL COMPOSITION (Mass weight - %)
C (％): 0.38 ~ 0.43
Si (%): 0.20 ~ 0.35
Mn (％): 0.75 ~ 1.00
P (％)≤: 0.035
S (％)≤: 0.040
Cr (%): 0.40 ~ 0.60
Ni (%): 0.40 ~ 0.70
Mo (%): 0.20 ~ 0.30
MECHANICAL PROPERTIES AND HOT WORKING
Mechanical property ≥ σb/MPa: 895
Mechanical property ≥ σs/MPa: 415
MATERIAL CATEGORY - SAE, AISI, UNS system alloy structural steel
MATERIAL SPECIFICATIONS - SAE J1249 -2000
MELTING PROCESS - EAF / AOD / + ESR
H S CODE For Customs - 7228 4000 / 7228 5000 / 7228 6000
OFFICIAL TEST CERTIFICATE - issued by TUV - SGS - BV
CHEMICAL COMPOSITION (Mass weight - %)
C (％): 0.38 ~ 0.43
Si (%): 0.20 ~ 0.35
Mn (％): 0.75 ~ 1.00
P (％)≤: 0.035
S (％)≤: 0.040
Cr (%): 0.40 ~ 0.60
Ni (%): 0.40 ~ 0.70
Mo (%): 0.20 ~ 0.30
MECHANICAL PROPERTIES AND HOT WORKING
Mechanical property ≥ σb/MPa: 895
Mechanical property ≥ σs/MPa: 415
Mechanical property ≥ δ5 (%): 22
Mechanical property ≥ ψ (％): 40
Hardness /annealed COND: 201 max.
Hot working temperature /℃: 1150～850
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
PROFILE AND SUPPLYING DIMENSION
Round bar (Diameter): 5.5mm to 600mm
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: T50 - 400mm X W50 - 1000mm X L1000 - 5000mm
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
PROFILE AND SUPPLYING DIMENSION
Round bar (Diameter): 5.5mm to 600mm
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: T50 - 400mm X W50 - 1000mm X L1000 - 5000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /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: sales@ccsteels.com.
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com.
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