1.7766
2015-02-10 09:41:26 Origin： Remark：0 Click：
Description 1.7766 is a low alloy content of 3Cr-Mo-V high temperature pressure vessel steel, available in form of round bar, plate, flat bar, and forgings fabricate from Melting, ESR, hot blooming, hot forging / rolling, heat treat, straightened, ultrasonic test, cold machined.
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - Grade W-Nr 1.7766
MATERIAL CATEGORY - high temperature pressure vessel steel
MATERIAL SPECIFICATIONS - DIN SEW 028 (1993), DIN EN 10216-2 (2004)
CHEMICAL COMPOSITION (mass weight %)
C (％): 0.15 ~ 0.20
Si (％): 0.15 ~ 0.35
Mn (％): 0.30 ~ 0.50
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 2.70 ~ 3.00
Mo (％): 0.20 ~ 0.30
Si (％): 0.15 ~ 0.35
Mn (％): 0.30 ~ 0.50
P (％)≤: 0.035
S (％)≤: 0.035
Cr (％): 2.70 ~ 3.00
Mo (％): 0.20 ~ 0.30
V (％): 0.10 ~ 0.20
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Condition: quenched and tempered
Tensile strength σb≥/MPa: 640～780
Yield strength σs≥/MPa: 440
Elongation δ5≥(%): 17.0
Impact, AKV≥/J: 55
Annealed hardness HBS: 190 ~ 235
Yield strength σs≥/MPa: 440
Elongation δ5≥(%): 17.0
Impact, AKV≥/J: 55
Annealed hardness HBS: 190 ~ 235
HOT WORKING AND HEAT TREATMENT
Hot working temperature /℃: 1100～850
Annealing temperature /℃: 680～730
Quenching temperature /℃: 950～980
Cooling medium: Oil or Air quenched
Annealing temperature /℃: 680～730
Quenching temperature /℃: 950～980
Cooling medium: Oil or Air quenched
Tempering temperature /℃: 630～700
PRODUCT PROFILE AND DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 500mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
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: T60 - 400mm X W70 - 1000mm 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, 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, 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.
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, Pressure vessel.
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, Pressure vessel.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. Email: sales@ccsteels.com
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. Email: sales@ccsteels.com
Hot search：1.7766
Previous page：17CrMoV10
Last page：20CrMoV13-5
Total list
Monthly rank
- 3438NCD4
- 3424CrMo5
- 3119CrNi5
- 2938B3
- 28ASTM A739 type B11
- 2826NiCrMoV11-5
- 2742Cr4Mo2
- 24S135
- 24EN 38
- 22EN20B