38Cr4
2015-02-02 13:45:58 Origin： Remark：0 Click：
Round bar 38Cr4 Inventory, 38Cr4 Plate 1.7043 Ex-stock, 38Cr4 Wire 1.7043 Forgings properties steelmaking, ESR, blooming, forging, rolling, heat treat, straightened, ultrasonic test, cold working, machined. We also possess advanced precision machining equipments for further processing. Material specification - DIN EN 10083-2/3 (2006), DIN 17212 (1972) / by agreement.
Official Test Certificate: issued by TUV - SGS - BV
TECHNICAL SPECIFICATION DATASHEET - DIN 38Cr4 / W-Nr 1.7043
MATERIAL CATEGORY: Flame and high-frequency heating surface hardening steel
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
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
MATERIAL SPECIFICATIONS - DIN EN 10083-2/3 (2006), DIN 17212 (1972)
CHEMICAL COMPOSITION (Mass weight - %)
C (％): 0.34 ~ 0.40
Si (％): 0.15 ~ 0.40
Mn (％): 0.60 ~ 0.90
P (％)≤: 0.025
S (％)≤: 0.035
Cr (％): 0.90 ~ 1.20
Mo (％): -
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1050～850
Heat treatment temperature /℃|annealing: 680～720
Si (％): 0.15 ~ 0.40
Mn (％): 0.60 ~ 0.90
P (％)≤: 0.025
S (％)≤: 0.035
Cr (％): 0.90 ~ 1.20
Mo (％): -
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1050～850
Heat treatment temperature /℃|annealing: 680～720
Heat treatment temperature /℃|normalizing: 840～880
Heat treatment temperature /℃|quenching: 820~850Water，830~860Oil
Heat treatment temperature /℃|tempering: 540～680
Heat treatment temperature /℃|surface hardening: 820～850
Surface hardness HBC≤: 54~60
Heat treatment temperature /℃|surface hardening: 820～850
Surface hardness HBC≤: 54~60
Size /mm: ≤16
Tensile strength, |σb≥/MPa: 980~1180
Yield strength, |σs≥/MPa: 780
Elongation, |δ5 ≥(％): 11.0
Reduction of area, |ψ≥(%): 40
Impact strength, |AKV ≥/J: 35
Size /mm: 16~40
|σb≥/MPa: 880~1080
|σs≥/MPa: 665
|δ5≥(％): 12
|ψ≥(%): 45
|AKV≥/J: 42
Size /mm: 40~100
|σb≥/MPa: 780~930
|σs≥/MPa: 560
|δ5≥(％): 14
|ψ≥(%): 50
|AKV≥/J: 42
AVAILABLE SHAPES
Round bar / flat bar / square bar / strip / wire / plate
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, discs, shaft
Round bar / flat bar / square bar / strip / wire / 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.
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
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.
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
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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