DAIKOWS S3NiMo

SAW
  • HIGH YIELD STRENGTH STEELS
100ksi

Description

Low alloy solid wire for high yield strength steels
Low-alloy copper-coated submerged arc welding wire with Ni-Mo additions designed for welding high yield strength steels and with tensile strength higher than 700 MPa. Good impact strength at low temperatures. Suitable for the metal working industry, offshore fabrication, chemical and petrochemical industry. It also has applications in fabrications of high strength low-alloy steels, which may be used for industrial machinery construction, cranes and other highly stressed structural components.
Specifications
ISO 26304-A
S3Ni1Mo
AWS A5.23
EF3
Shielding
DAIKOFLUX 490-W, 491-W
Positions
PA, PB, PC
Current
DC/AC
Packaging Type
K415 spool and drums.
Asme qualifications
F-No (QW432)
6
A-No (QW442)
-
Chem. Comp. %
DEFAULT
C
0.11
Mn
1.8
Ni
1
Cr
0.03
P
0.005
S
0.002
Mo
0.5
Si
0.2
Cu
0.03
Mechanical Properties
min
variant
Tensile strength Rm MPa
-
670
Yield strength Rp0.2 MPa
-
570
Elongation A (L0=5d0) %
-
22
Impact Charpy ISO-V
-
80J @ -40°C
Impact Charpy ISO-V
-
-
Welding Parameters
2.4 mm
3.2 mm
4 mm
Ampere
350A - 450A
430A - 530A
480A - 580A
Voltage
27V - 31V
27V - 31V
28V - 32V
Packaging
Ø 2,0÷4,0mm
Ø 2,0÷4,0mm
Ø 2,0÷4,0mm
Packaging Type
K415 spool and drums.
K415 spool and drums.
K415 spool and drums.
Description

Application

Exhibiting commendable impact strength at low temperatures, this filler material is well-suited for welding high-strength low-alloy (HSLA) used in cranes and earthmoving equipment. Applications extend to offshore fabrication and the chemical and petrochemical industry, where the precise addition of micro-alloying elements ensures excellent ductility and crack resistance despite the high strength. Preheating requirements depend on the base material and thickness, often mandating a minimum preheat of 100°C. Caution is warranted with certain HSLA steels, as interpass temperatures exceeding 200°C may lead to a reduction in strength and toughness. Post-weld heat treatment (PWHT) requirements are generally dependent on the specific base material and application. This filler material's composite properties offer a blend of durability, weldability, and machinability, making it an ideal choice for manufacturing diverse mechanical components.

Alloy Type

Mn-Ni-Mo low alloy consumables for welding high strength steels with ultimate tensile strength to 690 MPa (100ksi).

Microstructure

Predominantly ferrite; some will contain high proportions of acicular ferrite for optimum as welded toughness.

Materials

For joining of quenched and tempered and thermomechanically rolled fine-grained structural steels. For use in building, crane and vehicle constructions.
EN W.Nr.: S460, S500, S550, S620, S620Q, S620QL, S620QL1, S690Q, S690QL, S690QL1, S600MC, S650MC, S700MC, L690M, L830M.
ASTM: A 514 Gr. F, H, Q, A 709 Gr. 100 Type B, E, F, H, Q, A 709 Gr. HPS 100W.
API: 5L X65, 5L X70, 5L X80+
PROPRIETARY: N-A-XTRA® M 700 (ThyssenKrupp), Strenx® 700 (SSAB).

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