Type

Model

Chemical composition

Mechanical prosperities

Usage

THR107

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℃

THR207

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℃

THR307

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℃

THR317

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℃

THR337

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℃

THR347

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℃

THR407

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

THR507

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.