1.6971
2015-02-04 09:34:39 Origin： Remark：0 Click：
Round bar 1.6971 Inventory, Ex-stock 1.6971 Plate, Flat bar 1.6971 Equivalents - Steelmaking, ESR, blooming, hot forging, hot rolling, heat treatment
Official Test Certificate: issued by TUV - SGS - BV
TECHNICAL DATASHEET - DIN 79Ni1 & W-Nr 1.6971
MATERIAL CATEGORY: Flame and high-frequency heating surface hardening steel
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.
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 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 - Quenched and tempered.
The alloy is usually produced by EAF /VD /LF 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 - Quenched and tempered.
MATERIAL SPECIFICATIONS - DIN EN 10083-2/3 (2006), DIN 17212 (1972)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.75 ~ 0.85
Silicon, Si (％): 0.20 ~ 0.30
Manganese, Mn (％): 0.45 ~ 0.55
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 0.10 ~ 0.20
Molybdenum, Mo (％): -
Other (％): Nickel 0.10 ~ 0.20, Vanadium ≤0.05
Silicon, Si (％): 0.20 ~ 0.30
Manganese, Mn (％): 0.45 ~ 0.55
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 0.10 ~ 0.20
Molybdenum, Mo (％): -
Other (％): Nickel 0.10 ~ 0.20, Vanadium ≤0.05
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1100～850
Heat treatment temperature /℃|annealing: 690～720
Heat treatment temperature /℃|annealing: 690～720
Heat treatment temperature /℃|normalizing: 800～830
Heat treatment temperature /℃|quenching: 780~820Water.790~830 Oil
Heat treatment temperature /℃|tempering: 530～670
Heat treatment temperature /℃|surface hardening: 780～810
Surface hardness HBC≤: 62~65
Heat treatment temperature /℃|surface hardening: 780～810
Surface hardness HBC≤: 62~65
Size /mm: 40~60
TS, |σb≥/MPa: 780~930
YS, |σs≥/MPa: 540
EL, |δ5≥(％): 13
AZ, |ψ≥(%): -
Impact, |AKV≥/J: -
TYPICAL APPLICATIONS
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 rod.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shaft.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shaft.
PRODUCT PROFILE & DIMENSION
Round bar / Disc (diameter): 5.50mm to 800mm
Square bar / Flat bar: 8mm to 800mm
Heavy/middle plate via hot rolled: T6 - 200mm X W10 - 2000mm X L1000-12000mm
Round bar / Disc (diameter): 5.50mm to 800mm
Square bar / Flat bar: 8mm to 800mm
Heavy/middle plate via hot rolled: T6 - 200mm X W10 - 2000mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W60 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shaft, and other different shapes based on OEM.
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shaft, and other different shapes based on OEM.
ADVANTAGE & SUPERIOR SERVICE
20+ years Focus On Special Steel Manufacturing and processing.
CNC saw cutting.
Marking by stamping or printing.
Third party inspection service.
Export packing / Export documents.
Transport by Track, Sea, Courier (FedEx, UPS, DHL) and Air Cargo.
20+ years Focus On Special Steel Manufacturing and processing.
CNC saw cutting.
Marking by stamping or printing.
Third party inspection service.
Export packing / Export documents.
Transport by Track, Sea, Courier (FedEx, UPS, DHL) and Air Cargo.
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