W302 / 1.2367 Welding Wire

Material: DIN 1.2367 (Equiv. BÖHLER W302)

Hardness: 48–52 HRC

🔥 High Molybdenum Die-Casting Steel

Application & Industry Performance: Engineered for heavy-duty aluminum die-casting inserts, hot extrusion cores, and high-thermal-stress tooling. Elevated Molybdenum content (~3% Mo) delivers superior hot strength and unrivaled resistance against thermal checking cracks under severe cyclic shock.

W302 1.2367 TIG and Laser Welding Wire Sealed Packaging

Select Welding Process & Diameters

Choose between Laser Welding or TIG Welding wire specifications.

0.2

Spool / Rods

0.3

Spool / Rods

0.4

Spool / Rods

0.5

Spool / Rods

0.6

Spool / Rods

Custom

Other Sizes

0.8

10 rods / tube

1.0

10 rods / tube

1.2

10 rods / tube

1.6

10 rods / tube

2.0

10 rods / tube

2.4

10 rods / tube

Custom

Other Sizes

TECHNICAL DATA SHEET (TDS) & PROCESS GUIDE Standard: DIN 1.2367 / X38CrMoV5-3 (Equiv. BÖHLER W302)

1. Chemical Composition (wt%)

Element	C	Si	Mn	Cr	Mo	V	Fe
Specification	0.35–0.40	0.30–0.50	0.30–0.50	4.80–5.20	2.70–3.20	0.45–0.55	Balance

2. Hardness & Welding Parameters

⚡ Laser Welding 0.2–0.6 mm

Preheat Temp	Room Temp – 100°C
Pulse Power	120–220 A
Shielding Gas	Argon ≥99.99% (3–6 L/min)
HAZ Impact	Minimal HAZ, preventing micro-crack propagation

🔥 TIG Welding 0.8–2.4 mm

Preheat Temp	320°C – 400°C Mandatory
Welding Current	40–120 A (DCEN)
Shielding Gas	Argon ≥99.99% (8–12 L/min)
Post-Heat Relief	Slow cooling followed by stress relief at 500°C

💡 Key Repair & Operation Instructions:

High Molybdenum Advantage: W302 / 1.2367 contains ~3.0% Mo, offering significantly higher hot hardness than H13 and superior fatigue crack resistance during die-casting.
Preheating Requirement (TIG): Strict preheating to 320°C–400°C before TIG deposit is mandatory to eliminate cold cracking risks along fusion margins.