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MATERIAL CATEGORY: SAE, AISI, UNS system alloy structural steel
MATERIAL SPECIFICATIONS: SAE J1249 -2000
CHEMICAL COMPOSITION (mass weight %)
Carbon, C (％): 0.33 ~ 0.38
Manganese, Mn (％): 0.60 ~ 0.80
Sulfur, S (％)≤: 0.040
Mechanical property ≥ σs/MPa: 685
Mechanical property ≥ δ5 (%): 10.0
Mechanical property ≥ ψ (％): 48
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, normalizing; normalizing and tempering; or quenching and tempering.
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
Round bar (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: random length, fixed length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T4 - 200mm X W1000- 2500mm X L1000-12000mm
Forging piece: stepped shafts, and other different shapes based on OEM.
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