Specifications 1.7561, Ex-stock 1.7561 Chemical, 1.7561 Property from steelmaking, Hot forging, Hot rolling, Heat treatment, Cold working. We also possess advanced precision machining equipments for further processing.
MATERIAL TECHNICAL DATA SHEET - DIN 1.7561
MATERIAL CATEGORY: hardened and tempered steel
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
DIN EN 10083-2 (2006), DIN 17200 (1987)
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.38 ~ 0.46
Si (％): 0.15 ~ 0.35
Mn (％): 0.50 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 1.40 ~ 1.70
Mo (％): -
Ni (％): -
V (%): 0.07 ~ 0.12
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1100～900
Heat treatment temperature /℃| annealing: 680～720
Heat treatment temperature /℃| Normalizing: 880～920
Heat treatment temperature /℃| Quenching: 860~900oil
Heat treatment temperature /℃| Tempering : 480~650
Hardness after annealing ≤HBS: 235
Steel dimension /mm: ≤16
|σb≥/MPa: 1080 ~ 1270
Steel dimension /mm: 17 - 40
|σb≥/MPa: 980 ~ 1180
Steel dimension /mm: 41 - 100
|σb≥/MPa: 880 ~ 1030
Black bar / Flat bar / Square bar / Steel strip / Sheet
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, discs, shaft
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
Pressure vessel, seamless pipe
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to Email (email@example.com) or call our resident team of qualified production engineers.
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 1000mm
Plate / Steel strip: 0.1mm to 1000mm
Width: 8mm to 1200mm
Steel sheet: thickness 0.50 ~ 6.00mm, width 1000mm X length 1000/2000mm - Standard size
Length: random length or based on the customer's special requirement
Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM
Pipes / Tubings: OD30 - 1200mm, with wall thickness ranging from 15 to 350 mm