DC53 / Cr8Mo2SiV Welding Wire

Material: Daido DC53 (Equiv. Cr8Mo2SiV)

Hardness: 58–62 HRC

⚡ Ultra-High Toughness Cold Work Steel

Application & Industry Performance: Advanced replacement for SKD11 / D2 tooling. Premium solution for cold stamping dies, punching tools, shearing blades, and high-wear cutting edges. Offers twice the toughness of SKD11, preventing micro-chipping and cracking during heavy duty stamping repairs.

DC53 Cr8Mo2SiV Cold Work Tool Steel Welding Wire Sealed Packaging

Select Welding Process & Diameters

Choose between Laser Welding or TIG Welding wire specifications.

0.15

Spool / Rods

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: Daido DC53 / Cr8Mo2SiV High-Toughness Tool Steel

1. Chemical Composition (wt%)

Element	C	Si	Mn	Cr	Mo	V	Fe
Specification	0.90–1.05	0.80–1.10	0.20–0.50	7.80–8.50	1.80–2.10	0.25–0.40	Balance

2. Hardness & Welding Parameters

⚡ Laser Welding 0.15–0.6 mm

Preheat Temp	Room Temp – 150°C
Pulse Power	120–220 A
Shielding Gas	Argon ≥99.99% (3–5 L/min)
HAZ Impact	Precise pulse repairs avoid thermal stress cracks on sharp edges

🔥 TIG Welding 0.8–2.4 mm

Preheat Temp	300°C – 400°C Essential
Welding Current	40–110 A (DCEN)
Shielding Gas	Argon ≥99.99% (8–12 L/min)
Post-Heat Relief	Slow cooling in insulation blanket to prevent stress cracking

💡 Key Repair & Operation Instructions:

Pre-Heat Crack Prevention: Due to high carbon and 8% Chromium content, TIG repair must maintain preheat temperatures above 300°C to eliminate micro-cracking risks.
Superior Edge Strength: The deposited metal hardness reaches 58–62 HRC, providing high resistance to wear and deformation on cutting edges.