DAIKOWS 4130

SAW
  • HIGH YIELD STRENGTH STEELS
130ksi

Description

Low alloy solid wire for high yield strength steels
This high strength low alloy consumable is designed to weld alloys of similar composition, requiring 130 Ksi minimum tensile strength. It displays good mechanical properties and is suitable for applications on strongly stressed structures. To obtain high static strength and high impact toughness in the welded joint, it is important not to exceed 0,8 kJ/mm heat input during welding. It is not recommended to stress relieve the weldment by post weld heat treatment.
Specifications
Werkstoff Number
1.7218
Shielding
DAIKOFLUX 490-W, 491-W
Positions
PA, PB, PC
Current
DC/AC
Packaging Type
K415 spool and drums.
Chem. Comp. %
DEFAULT
C
0.3
Mn
0.5
Ni
0.01
Cr
1
P
0.015
S
0.01
Mo
0.2
Si
0.3
Cu
0.15
Mechanical Properties
min
variant
Tensile strength Rm MPa
-
1150
Yield strength Rp0.2 MPa
-
1100
Elongation A (L0=5d0) %
-
-
Impact Charpy ISO-V
-
-
Impact Charpy ISO-V
-
-
Welding Parameters
2.4 mm
3.2 mm
4 mm
Ampere
350A - 450A
430A - 530A
480A - 580A
Voltage
27V - 30V
27V - 31V
28V - 32V
Packaging
Ø 2,0÷4,0mm
Ø 2,0÷4,0mm
Ø 2,0÷4,0mm
Packaging Type
product.packaging_types.product.packaging_types.product.packaging_types.K415 spool and drums.
product.packaging_types.product.packaging_types.product.packaging_types.K415 spool and drums.
product.packaging_types.product.packaging_types.product.packaging_types.K415 spool and drums.
Anti-wear Characteristics
Adhesive wear
Abrasive wear
Impact
Corrosion
Heat
130ksi
Description

Application

Chromium/molybdenum alloyed steel, low alloy, and high strength. Mainly used in the aerospace sector and in the construction of connecting rods for the automotive industry, it is also ideal for the creation of fasteners, gears, bolts, shafts, and similar parts. It is advisable to preheat according to the base material and thickness; however, for materials that can be welded with higher strength consumables, a minimum preheat of 100°C is generally required. Some HSLA steels may show a reduction in strength and toughness with interpass temperatures exceeding 200°C. Post weld heat treatment (PWHT) usually depends on the base material and the specific application.

Alloy Type

Mn-Cr-Mo low alloy consumables for welding high strength steels with ultimate tensile strength up to 900 MPa (130 ksi).

Microstructure

The microstructure of all the consumables is predominantly ferrite; some will contain high proportions of acicular ferrite for optimum aswelded toughness.

Materials

This material is used for welding high strength steels such as 4130.
  • ASTM: 4130, 8630, 4140

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