W-Nr 1.7350
2014-10-11 09:39:28 Origin： Remark：0 Click：
1.7350 is defined as a middle carbon low alloy 1.0Cr - 0.45Mo Structural Steel. it offers in form Round bar, flat bar, plate, and shaft via processing - Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw detection test, Cold working or Machined.
MATERIAL TECHNICAL DATA SHEET - Grade W-Nr 1.7350
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 (Mass weight - %)
C (％): 0.19 ~ 0.26
Si (％): 0.15 ~ 0.40
Mn (％): 0.50 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 0.90 ~ 1.20
Mo (％): 0.40 ~ 0.50
Ni (％): ≤ 0.60
Si (％): 0.15 ~ 0.40
Mn (％): 0.50 ~ 0.80
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 0.90 ~ 1.20
Mo (％): 0.40 ~ 0.50
Ni (％): ≤ 0.60
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working tmperature /℃: 1100～850
Heat treatment temperature /℃|annealing / normalizing : 680~720
Heat treatment temperature /℃|quenching: 880~920 oil
Heat treatment temperature /℃|tempering: 580~680
HBS: 190~236
Tensile strength, (≥)|σb/MPa: 640～780
Yield strength, (≥)|σs/MPa: 490
Elongation, (≥)|δ5(%): 18.0
Impact strength, (≥)|AKv/J: 41
Heat treatment temperature /℃|annealing / normalizing : 680~720
Heat treatment temperature /℃|quenching: 880~920 oil
Heat treatment temperature /℃|tempering: 580~680
HBS: 190~236
Tensile strength, (≥)|σb/MPa: 640～780
Yield strength, (≥)|σs/MPa: 490
Elongation, (≥)|δ5(%): 18.0
Impact strength, (≥)|AKv/J: 41
MECHANICAL PROPERTY UNDER HIGH TEMPERATURE
Yield strength σ0.2≥/MPa|200℃: -
Yield strength σ0.2≥/MPa|300℃: 392
Yield strength σ0.2≥/MPa|350℃: 373
Yield strength σ0.2≥/MPa|400℃: 343
Yield strength σ0.2≥/MPa|450℃: -
Yield strength σ0.2≥/MPa|500℃: -
Yield strength σ0.2≥/MPa|300℃: 392
Yield strength σ0.2≥/MPa|350℃: 373
Yield strength σ0.2≥/MPa|400℃: 343
Yield strength σ0.2≥/MPa|450℃: -
Yield strength σ0.2≥/MPa|500℃: -
PRODUCT PROFILE & DIMENSION
Round bar / Wire rod (Diameter): 5.5mm to 650mm
Square bar / Flat bar: 3mm to 500mm
Plate / Sheet steel / Steel strip: 0.1mm to 300mm
Width: 8mm to 2500mm
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.
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.
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