1.5919 / SAE 3115
2026-03-17 09:00:00 Origin： Remark：0 Click：
Technical specifications of French standards Case hardening steel 1.5919 Steelmaking, ESR melted, Blooming,1.5919 Hot forged / rolled, heat treated
TECHNICAL DATA SHEET - 1.5919 & SAE 3115
Material type: case hardening steel
Material specifications: NF EN 10084
Typical chemical compositions (mass fraction %)
Carbon, C (％): 0.14 ~ 0.20
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): 0.50 ~ 0.90
Phosphorus, P (％): ≤ 0.035
Sulfur, S (％): ≤ 0.035
Phosphorus, P (％): ≤ 0.035
Sulfur, S (％): ≤ 0.035
Chromium, Cr (%): 1.40 ~ 1.70
Nickel, Ni (%): 1.40 ~ 1.70
Molybdenum, Mo (%): -
Equals to SAE 3115
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile strength, Rm ≥ MPa: 900 ~ 1200
Yield strength, Rp0.2 ≥ MPa: 715
Yield strength, Rp0.2 ≥ MPa: 715
Elongation, A5 ≥ (%): 13.0
Reduction of area, ψ (％) ≥: -
PRODUCT DESCRIPTION
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.
Final heat treatment - quenched and tempered.
Forged - ring, discs, shaft
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.
Process plant – fasteners.
Mechanical gears, gear shaft, main axis, valve rods.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shafts.
PRODUCT PROFILE & DIMENSIONS
Round bar / rod / disc (diameter): 6.0 to 800 mm
Square bar / flat bar: 8 to 600 mm
Length: random length or based on the customer's special requirement.
Round bar / rod / disc (diameter): 6.0 to 800 mm
Square bar / flat bar: 8 to 600 mm
Length: random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 300 X W20 ~ 1500 X L1000 ~ 12000 mm
Forging piece: stepped shafts, and other different shapes based on OEM.
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineer.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineer.
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