1.7779
2018-03-21 17:31:35
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Steel Grade: 20CrMoV13-5| Material No.: 1.7779
CHEMICAL COMPOSITION(1.7779):
C(％) : 0.17～0.23
Si (％): 0.15～0.35
Mn(％): 0.30～0.50
P(％)≤: 0.025
S(％)≤: 0.02
Cr(％) : 3.00～3.30
Mo(％) : 0.50～0.60
Other(％) : V0.45～0.55
HARDNESS AND HEAT TREATMENT(1.7779):
Hot Working/℃: 1100～800
Annealing/℃: 680～710
Quench/℃: 800～830
Refrigeration: Oil
Temper/℃: 180～300
Annealing hardness HBS: 220～265
MECHANICAL PROPERTIES (1.7779):
Tensile Strength|σb≥Mpa: 690～830
Yield Strength|σs≥Mpa: 540
Extensibility|δ5≥(％) : 16
Ballistic|αkv≥(J/cm^2) : 55
Remark(1.7779):
①, it is afer q-tempering report for tensile strength, yield Strength, extensibility and ballistic in this table.
Please check the PDF for 1.7779
Introduction pressure vessel steel(1.7779)
This materil are used in accordance with the respective applicable standards or customer specifications.The material is selected by the customer in viewof the strength and toughness requirementsunder specific operating conditions.
Upon request, voestalpine Grobblech will offer supportand advice in the selection. voestalpine Grobblech has developed special base materialsfor roll-bonded clad plates with cladding materialsrequiring special heat treatments for the purposeof corrosion resistance. A brief summary of theapplicable base materials according to Europeanstandards EN and ASTM can be found on pages14/15 and 16.
The pressure vessel steel has developed low alloy steel and alloy steel on the basis of carbon steel. From table 1, it is found that the carbon content of tapping steel is low, generally less than 0.20%, so that the pressure vessel steel has lower carbon equivalent (Ceq) and lower welding susceptibility coefficient (Pam), so as to ensure the welding performance of the steel. In addition, the pressure vessel is difficult to use, most of the containers are equipped with inflammable and explosive gas, and have certain pressure, easy to happen explosion accident. Therefore, the pressure vessel steel is required to have good toughness. In order to ensure the safety of the container, three types of pressure vessels are generally made of low alloy steel or stainless steel.
Application(1.7779)
This steel used for manufacturing petroleum, chemical, petrochemical, gas separation, storage and transportation of pressure vessels or other similar equipment, including carbon steel, carbon manganese steel, microalloyed steel, low alloy high strength steel and low temperature steel. The working temperature is generally from -20 C to 500 C, and the individual can reach 560 degrees centigrade.
HOT SALE:
SA-675GR70, SA-387GR91, X6NiCrTiMoVB25-15-2, 17-4PH, 15-5PH,
ASTM 630, X3CrNiMo13-4, UNS41500, X10CrNiTi18-10, S17400,
X5CrNiCuNbl6-4, 316Ti, 301A, 303, 304L, 310S, 316L, 317L, 321,
NKA80, DIN 1.4731, DIN 1.4021, DIN 1.4016, DIN 1.4571, DIN 1.4418,
616, 440B, 440C, 431, 430FR, 430F, 430, 422, 416, 410, 405,
ASTM D2, X155CrMoV12-1, ASTM D3, AISI H11, AISI H13, 1.7779
Steel Grade: 20CrMoV13-5| Material No.: 1.7779
CHEMICAL COMPOSITION(1.7779):
C(％) : 0.17～0.23
Si (％): 0.15～0.35
Mn(％): 0.30～0.50
P(％)≤: 0.025
S(％)≤: 0.02
Cr(％) : 3.00～3.30
Mo(％) : 0.50～0.60
Other(％) : V0.45～0.55
HARDNESS AND HEAT TREATMENT(1.7779):
Hot Working/℃: 1100～800
Annealing/℃: 680～710
Quench/℃: 800～830
Refrigeration: Oil
Temper/℃: 180～300
Annealing hardness HBS: 220～265
MECHANICAL PROPERTIES (1.7779):
Tensile Strength|σb≥Mpa: 690～830
Yield Strength|σs≥Mpa: 540
Extensibility|δ5≥(％) : 16
Ballistic|αkv≥(J/cm^2) : 55
Remark(1.7779):
①, it is afer q-tempering report for tensile strength, yield Strength, extensibility and ballistic in this table.
Please check the PDF for 1.7779
Introduction pressure vessel steel(1.7779)
This materil are used in accordance with the respective applicable standards or customer specifications.The material is selected by the customer in viewof the strength and toughness requirementsunder specific operating conditions.
Upon request, voestalpine Grobblech will offer supportand advice in the selection. voestalpine Grobblech has developed special base materialsfor roll-bonded clad plates with cladding materialsrequiring special heat treatments for the purposeof corrosion resistance. A brief summary of theapplicable base materials according to Europeanstandards EN and ASTM can be found on pages14/15 and 16.
The pressure vessel steel has developed low alloy steel and alloy steel on the basis of carbon steel. From table 1, it is found that the carbon content of tapping steel is low, generally less than 0.20%, so that the pressure vessel steel has lower carbon equivalent (Ceq) and lower welding susceptibility coefficient (Pam), so as to ensure the welding performance of the steel. In addition, the pressure vessel is difficult to use, most of the containers are equipped with inflammable and explosive gas, and have certain pressure, easy to happen explosion accident. Therefore, the pressure vessel steel is required to have good toughness. In order to ensure the safety of the container, three types of pressure vessels are generally made of low alloy steel or stainless steel.
Application(1.7779)
This steel used for manufacturing petroleum, chemical, petrochemical, gas separation, storage and transportation of pressure vessels or other similar equipment, including carbon steel, carbon manganese steel, microalloyed steel, low alloy high strength steel and low temperature steel. The working temperature is generally from -20 C to 500 C, and the individual can reach 560 degrees centigrade.
HOT SALE:
SA-675GR70, SA-387GR91, X6NiCrTiMoVB25-15-2, 17-4PH, 15-5PH,
ASTM 630, X3CrNiMo13-4, UNS41500, X10CrNiTi18-10, S17400,
X5CrNiCuNbl6-4, 316Ti, 301A, 303, 304L, 310S, 316L, 317L, 321,
NKA80, DIN 1.4731, DIN 1.4021, DIN 1.4016, DIN 1.4571, DIN 1.4418,
616, 440B, 440C, 431, 430FR, 430F, 430, 422, 416, 410, 405,
ASTM D2, X155CrMoV12-1, ASTM D3, AISI H11, AISI H13, 1.7779
