1.1181
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1.1181 Global Wholesalers Steel, 1.1181 Suppliers & Manufacturers, DIN 1.1181 Forge bar plate machined, Exporter From Melting, ESR & VAR technique, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw detection test,
MATERIAL DATA SHEET - Grade W-Nr 1.1181
MATERIAL CATEGORY - High temperature structural 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.
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.
Final heat treatment - heat treatment / QT
MATERIAL SPECIFICATIONS - DIN EN 10028-2 (2003), DIN 17755 (1983)
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.32 ~ 0.39
Si (％): ≤ 0.40
Mn (％): 0.50 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): ≤ 0.40
Mo (％): ≤ 0.10
Ni (％): ≤ 0.40
Other (％): Cr+Ni+Mo ≤ 0.63
Si (％): ≤ 0.40
Mn (％): 0.50 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): ≤ 0.40
Mo (％): ≤ 0.10
Ni (％): ≤ 0.40
Other (％): Cr+Ni+Mo ≤ 0.63
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1100～850
Heat treatment temperature /℃|annealing / normalizing : 650～700
Heat treatment temperature /℃|quenching: 870~900 oil
Heat treatment temperature /℃|tempering: 650~710
HBS: 145～175
(≥)|σb/MPa: 490～590
(≥)|σs/MPa: 275
(≥)|δ5(%): 22.0
(≥)|AKV/J: 55
Heat treatment temperature /℃|annealing / normalizing : 650～700
Heat treatment temperature /℃|quenching: 870~900 oil
Heat treatment temperature /℃|tempering: 650~710
HBS: 145～175
(≥)|σb/MPa: 490～590
(≥)|σs/MPa: 275
(≥)|δ5(%): 22.0
(≥)|AKV/J: 55
MECHANICAL PROPERTY UNDER HIGH TEMPERATURE
Yield strength σ0.2≥/MPa|200℃: 220
Yield strength σ0.2≥/MPa|300℃: 186
Yield strength σ0.2≥/MPa|350℃: 167
Yield strength σ0.2≥/MPa|400℃: 147
Yield strength σ0.2≥/MPa|450℃: —
Yield strength σ0.2≥/MPa|500℃: —
Yield strength σ0.2≥/MPa|300℃: 186
Yield strength σ0.2≥/MPa|350℃: 167
Yield strength σ0.2≥/MPa|400℃: 147
Yield strength σ0.2≥/MPa|450℃: —
Yield strength σ0.2≥/MPa|500℃: —
AVAILABLE SHAPES
Round bar / flat bar / hollow bar / strip / plate / forgings
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.
Mechanical gears, gear shaft, main axis, valve rod
Mechanical parts - connecting rod, bolt and nut
Multidiameter shaft
Pressure vessel, seamless pipe
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to email or call our resident team of qualified production engineers.
PRODUCT PROFILE
Round bar / Wire rod (Diameter): 5.5mm to 650mm
Square bar / Flat bar: 10mm to 1000mm
Plate / Sheet steel / Steel strip: 0.1mm to 200mm
Width: 8mm to 1000
00mm
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.
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