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
EN 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

These consumables are designed to ensure excellent impact resistance even at low temperatures, making them ideal for use in constructions with high-strength low-alloy (HSLA) steels, such as cranes, earth-moving equipment, and the like. They are also particularly suitable for offshore fabrications and components in the chemical and petrochemical industries. Preheating based on the base material and thickness is crucial, considering that higher strength materials often require a minimum preheat of 100 °C. For some HSLA steels, it's advisable to avoid interpass temperatures above 200 °C, as they may compromise the weld joint's strength and toughness. Post-weld heat treatment (PWHT) is closely related to the base material and the specific application.

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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