Specifications 1.5711 Datasheet, 1.5711 Chemical, 1.5711 Properties from Steelmelting (ESR refined), Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw detection test, Cold working or Machined. All of these materials conform to Military standard, nuclear power. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Official Test Certificate: issued by TUV - SGS - BV
TECHNICAL DATASHEET - Grade 1.5711
MATERIAL TYPE - Quenched and tempered steel
HSN CODE - 72283090 / 72284000 / 72285000
MATERIAL STANDARDS - NF EN 10083-3
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.38 ~ 0.43
Si (％): ≤ 0.35
Mn (％): 0.70 ~ 0.90
P (％)≤: 0.035
S (％)≤: 0.025
Cr (%): 0.55 ~ 0.75
Ni (%): 1.10 ~ 1.40
Mo (%): -
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile strength σb≥/MPa: 950
Yield strength σs≥/MPa: 755
Elongation δ5 ≥(%): 12.0
Reduction of area ψ(％) ≥: -
Hardness + annealed condition: HBW 269 max.
Alloy structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
The concentration of alloy element of this kind of steel is quite high, mainly are corrosion resistant steel, heat resistant steel, wear resistant steel, and other special steels of physical and chemical properties. Alloy structural steel has preferable mechanical property than that of carbon structural steel, high performance of heat treatment especially.
The alloy is usually produced by EAF + VD /LF + IFF + VD followed by electroslag refining (ESR) if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition, or bright annealing specially.
Final heat treatment - heat treatment / QT
Forged - ring, discs, shaft
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 rod, bolt and nut
PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 500mm
Square bar / Flat bar: 3mm to 610mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T30 - 400mm X W60 - 1000mm X L1000-12000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
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