1.7242
2014-10-10 10:40:42 Origin： Remark：0 Click：
Description 1.7242 Ex-stock, Round bar 1.7242 Suppliers, Shaft 1.7242 Forging Bar, Technical specifications Melting, ESR & VAR technique, Hot blooming, Hot forging / rolling, Heat treatment, Straightening, Ultrasonic flaw detection test.
TECHNICAL DATA SHEET - Grade W-Nr 1.7242
MATERIAL CATEGORY: High temperature structural steel
PRODUCT DESCRIPTION
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 /LF / 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 - heat treatment / QT
MATERIAL SPECIFICATIONS - DIN EN 10028-2 (2003), DIN 17755 (1983)
CHEMICAL COMPOSITION (Mass weight - %)
C (％): 0.13 ~ 0.20
Si (％): 0.15 ~ 0.35
Mn (％): 0.50 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 0.90 ~ 1.20
Mo (％): 0.20 ~ 0.30
Ni (％): ≤ 0.40
Si (％): 0.15 ~ 0.35
Mn (％): 0.50 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 0.90 ~ 1.20
Mo (％): 0.20 ~ 0.30
Ni (％): ≤ 0.40
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1100 ~ 850
Heat treatment temperature /℃|annealing / normalizing : 650 ~ 700
Heat treatment temperature /℃|quenching: 900 ~ 950 oil
Heat treatment temperature /℃|tempering: 580 ~ 680
HBS: 160 ~ 205
(≥)|σb/MPa: 540 ~ 690
(≥)|σs/MPa: 345
(≥)|δ5(%): 20.0
(≥)|AKV/J: 41
Heat treatment temperature /℃|annealing / normalizing : 650 ~ 700
Heat treatment temperature /℃|quenching: 900 ~ 950 oil
Heat treatment temperature /℃|tempering: 580 ~ 680
HBS: 160 ~ 205
(≥)|σb/MPa: 540 ~ 690
(≥)|σs/MPa: 345
(≥)|δ5(%): 20.0
(≥)|AKV/J: 41
MECHANICAL PROPERTY UNDER HIGH TEMPERATURE
Yield strength σ0.2≥/MPa|200℃: -
Yield strength σ0.2≥/MPa|300℃: 284
Yield strength σ0.2≥/MPa|350℃: 265
Yield strength σ0.2≥/MPa|400℃: 234
Yield strength σ0.2≥/MPa|450℃: -
Yield strength σ0.2≥/MPa|500℃: -
Yield strength σ0.2≥/MPa|300℃: 284
Yield strength σ0.2≥/MPa|350℃: 265
Yield strength σ0.2≥/MPa|400℃: 234
Yield strength σ0.2≥/MPa|450℃: -
Yield strength σ0.2≥/MPa|500℃: -
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 1000mm
Plate / Sheet steel / Steel strip: 0.5mm to 300mm
Width: 8mm to 1000mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts, other different shapes based on OEM.
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.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shaft and pressure vessel.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to email or call our resident team of qualified production engineers. Email: sales@ccsteels.com
Hot search：1.7242
