1.7321
2015-01-28 09:47:43 Origin： Remark：0 Click：
Plate 1.7321 Ex-stock, Round bar 1.7321 Inventory, Wire 1.7321 Shaft Properties Steelmaking, ESR, blooming, Hot forging, rolling, heat treatment, straightened, ultrasonic test, cold working, machined. We also possess advanced precision machining equipments for further processing.
Material specification - DIN EN 10084 (1998), DIN 17210 (1986)
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL SPECIFICATION - Grade DIN 1.7321
MATERIAL CATEGORY: Cold heading & cold extruding steel
MATERIAL SPECIFICATIONS: DIN EN 10263-4 (2002), DIN 1654 (1989)
CHEMICAL COMPOSITION (Mass weight - %)
C (％): 0.17 ~ 0.23
Si (％): ≤ 0.40
Mn (％): 0.70 ~ 1.00
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 0.30 ~ 0.60
Mo (％): 0.40 ~ 0.50
Ni (％): -
Si (％): ≤ 0.40
Mn (％): 0.70 ~ 1.00
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 0.30 ~ 0.60
Mo (％): 0.40 ~ 0.50
Ni (％): -
MECHANICAL PROPERTIES - Cold heading/Cold extruding steel
Soft annealing temperature /℃: 650～700
Soft annealed (≤100mm)|σb/MPa: 570
Soft annealed (≤100mm)|ψ(％): 60
Cold draw soft annealed (≤60mm)|σb/MPa: 550
Cold draw soft annealed (≤60mm)|ψ(％): 62
Soft annealed (≤100mm)|σb/MPa: 570
Soft annealed (≤100mm)|ψ(％): 60
Cold draw soft annealed (≤60mm)|σb/MPa: 550
Cold draw soft annealed (≤60mm)|ψ(％): 62
Heat treatment / quenching temperature /℃| water quenching: -
Heat treatment / quenching temperature /℃|oil quenching: 810~840
Heat treatment / quenching temperature /℃|oil quenching: 810~840
Heat treatment / tempering temperature /℃: -
Mechancial after heat treatment
Tensile strength, ≥|σb/MPa: 980 - 1270
Yield strength, ≥|σs/MPa: 685
Elongation, ≥|δ5(％): 8.0
Reduction of area, ≥|ψ(％): 35.0
Tensile strength, ≥|σb/MPa: 980 - 1270
Yield strength, ≥|σs/MPa: 685
Elongation, ≥|δ5(％): 8.0
Reduction of area, ≥|ψ(％): 35.0
AKV DVM-V form sampling /J: 34
PRODUCT DESCRIPTION
Proven performance in long-term service.
Extensive database of long term, high temperature test results.
High room and elevated temperature strength.Good creep.
High notch tolerance.
Thermal expansion coefficients compatible with low alloy steel turbine casing materials.
Lower design and operating risks
Simplified design for bolting configuration compared with martensitic steels or high nickel alloys.
Proven performance in long-term service.
Extensive database of long term, high temperature test results.
High room and elevated temperature strength.Good creep.
High notch tolerance.
Thermal expansion coefficients compatible with low alloy steel turbine casing materials.
Lower design and operating risks
Simplified design for bolting configuration compared with martensitic steels or high nickel alloys.
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 - heat treatment / QT
AVAILABLE SHAPES
Round bar / flat bar / strip / plate
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, discs, shaft
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 - heat treatment / QT
AVAILABLE SHAPES
Round bar / flat bar / strip / plate
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, 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
Mechanical gears, gear shaft, main axis, valve rod
Mechanical parts - connecting rod, bolt and nut
Multidiameter shaft
Pressure vessel, seamless pipe
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
Pressure vessel, seamless pipe
PRODUCT PROFILE
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 - 400mm X W100 - 1000mm X L1000 ~ 5000mm
Sheet steel via cold rolled: T0.5 - 6mm X W600- 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 - 6mm X W600- 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
ADVANTAGE & SUPERIOR SERVICE
17+ years Focus On Special Steel Manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
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.
We closely cooperate with the professional inspection partners to strictly control the quality and improve the quality manage system, and guarantee the goods delivery each time. It is proved that we are worth of trusting and will be the strategic partner of the supplying chains in the special steels field.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers, Email:sales@ccsteels.com
17+ years Focus On Special Steel Manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
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.
We closely cooperate with the professional inspection partners to strictly control the quality and improve the quality manage system, and guarantee the goods delivery each time. It is proved that we are worth of trusting and will be the strategic partner of the supplying chains in the special steels field.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers, Email:sales@ccsteels.com
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