Type

Model

Chemical composition

Mechanical prosperities

Usage

SW106Fe

E5018-A1 (E7018-A1)

C0.05-0.12
Mn≤0.90
Si≤0.50
Mo0.40-0.65

Rm≥490MPa
Rel≥390MPa
A≥22%
AKv≥47J(Normal temperature)

Used for welding boiler pipes below 510℃ (such as 15Mo). Also used for welding general low-alloy steel.

SW107

E5015-A1
(E7015-A1)

C≤0.12
Mn≤0.90
Si≤0.50
Mo0.40-0.65

Rm≥490MPa
Rel≥390MPa
A≥22%
AKv≥47J(Normal temperature)

Used for welding 15Mo pearlistic heat-resistant steel under the temperature of 510℃

SW202

E5503-B1

C0.05-0.12
Mn≤0.90
Si≤0.50
Mo0.40-0.65
Cr0.40-0.65

Rm≥540MPa
Rel≥440MPa
A≥16%

Used for welding 12CrMo pearlistic heat-resistant steel under the temperature of 510℃

SW207

E5515-B1
(E8015-B1)

C0.05-0.12
Mn≤0.90
Si≤0.60
Mo0.40-0.65
Cr0.40-0.65

Rm≥540MPa
Rel≥440MPa
A≥17%
AKv≥34J( Normal temperature )

Used for welding 12CrMo pearlistic heat-resistant steel under the temperature of 510℃

SW307

E5515-B2
(E8015-B2)

C0.05-0.12
Mn≤0.90
Si≤0.60
Mo0.40-0.65
Cr0.80-1.50

Rm≥540MPa
Rel≥440MPa
A≥17%
AKv≥47J( Normal temperature )

Used for welding 15CrMo pearlistic heat-resistant steel under the temperature of 520℃

SW307A

E5515-B2
(E8015-B2)

C0.05-0.12
Mn≤0.90
Si≤0.60
Mo0.40-0.65
Cr0.80-1.50

Rm≥540/640MPa
Rel≥440MPa
A≥20%
AKv≥-20℃ 55

Used for welding 12CrMo pearlistic heat-resistant steel under the temperature of 540℃,good low-temperature toughness

SW317

E5515-B2-V

C0.05-0.12
Mn≤0.90
Si≤0.60
V0.10-0.35
Mo0.40-0.65
Cr0.80-1.50

Rm≥540MPa
Rel≥440MPa
A≥17%
AKv≥47J( Normal temperature )

Used for welding 12CrMo pearlistic heat-resistant steel under the temperature of 540℃

SW310

E5500-B2-V

C0.05-0.12
Mn≤0.90
Si≤0.60
V0.10-0.35
Mo0.40-0.65
Cr1.00-1.50

Rm≥540MPa
Rel≥440MPa
A≥16%

Used for weldingCr1%-Mo0.5%-V pearlitic heat-resistant steel below 540℃

SW327

E5515-B2-VW

C0.05-0.12
Mn0.7~1.1
Si≤0.60
V0.20-0.35
Mo0.70-1.00
Cr0.80-1.50

Rm≥540MPa
Rel≥440MPa
A≥16%
AKv≥47J( Normal temperature )

Used for welding 15CrMoV pearlitic heat-resistant steel below 570℃ such as 15CrMoV, etc.

SW337

E5515-B2-VNb

C0.05-0.12
Mn≤0.90
Si≤0.60
Mo0.70-1.00
V0.15-0.40
Nb0.10-0.25

Rm≥540MPa
Rel≥440MPa
A≥17%
AKv≥47J( Normal temperature )

Used for welding 15CrMo pearlistic heat-resistant steel under the temperature of 570℃

SW347

E5515-B3-VWB

C0.05-0.12
Mn≤1.00
W0.20-0.60
Si≤0.60
Mo0.30-0.80
Cr1.50-2.50

Rm≥540MPa
Rel≥440MPa
A≥17%
AKv≥47J( Normal temperature )

Used for welding appropriate pearlistic heat-resistant steel under the temperature of 620℃

SW407

E6015-B3
(E9015-B3K)

C0.05-0.12
Mn≤0.90
Si≤0.60
Mo0.90-1.20
Cr2.00-2.50

Rm≥590MPa
Rel≥490MPa
A≥15%
AKv≥47J( Normal temperature )

Used for welding Cr2.5Mo pearlistic heat-resistant steel

SW417

E5515-B3-VNb

C0.05-0.12
Mn≤1.00
Si≤0.60
Mo0.70-1.00
Cr2.40-3.00

Rm≥540MPa
Rel≥440MPa
A≥17%
AKv≥27J( Normal temperature )

Used for welding 12Cr3MoVSiTiB pearlitic heat-resistant steel structures below 620℃, such as high temperature high pressure boiler pipes, etc.

SW507

E5MoV-15

C≤0.12
Mn0.50-0.90
Si≤0.50
V0.10-0.35
Cr4.50-6.00
Mo0.40-0.70

Rm≥520MPa
A≥14%

Used for welding Cr5Mo pearlistic heat-resistant steel.

SW507D

E5MoV-15

C≤0.12
Mn0.50-0.90
Si≤0.50
V0.10-0.35
Cr4.5-6.0
Mo0.40-0.70

Rm≥540MPa
A≥14%

Used for backing weld on Cr5Mo pearlitic heat-resistant steel

SW517A

C≤0.12
Mn0.50-0.80
Si≤0.70
V0.25-0.4
Cr5.0-6.0
Mo0.60-0.80

Rm≥590MPa
A≥14%

Used for welding 10Cr5MoWVTiB(G106) pearlitic heat-resistant steel below 650℃, etc., such as high temperature high pressure boiler reheater pipes.

SW717

C≤0.12
Mn0.60-1.20
Si≤0.50
V0.15-0.40
Cr8.00-9.50
Mo0.80-1.10

Rm≥590MPa
A≥16%

Used for welding Cr9MoNiV (such as T91) heat-resistant steel structures, superheater pipes, etc.

SW802

E11MoVNi-16

C≤0.15
Mn0.50-1.0
Si≤0.50
V0.2-0.40
Cr9.50~11.50
Mo0.60~0.90

Rm≥730MPa
A≥15%

Used for welding Cr11MoV heat-resistant steel structures below 565℃

SW807

E11MoVNi-15

C≤0.15
Mn0.50-1.0
Si≤0.50
V0.2-0.40
Cr9.50~11.50
Mo0.60~0.90

Rm≥730MPa
A≥15%

Used for welding Cr11MoV heat-resistant steel structures below 565℃, such as speed blades of high pressure steam turbines, etc.

SW817

E11MoVNiW-15

C≤0.19
Mn0.50-1.0
Si≤0.50
V0.2-0.40
Cr9.50~12.00
Mo0.80~1.10

Rm≥730MPa
A≥15%

Used for welding Cr11MoNiVW steel structures below 580℃, such as refractory steel superheaters, steam pipes, etc.