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DF-2 Welding Wire

Material: DF-2 / Uddeholm DF-2 / AISI O1

Hardness: 58–62 HRC

📐 Low-Distortion Oil Hardening Steel

Application: Precision blanking dies, cutting tools, measuring gauges, thread chasers, and plastic mold inserts. Manganese-chromium-tungsten alloy provides excellent dimensional stability, keen edge sharpness, and high wear resistance.

Sealed PP Tube Packaging

DF-2 AISI O1 1.2510 Laser Welding Wire Clean Surface Detail

Clean Wire Surface Detail

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: Uddeholm DF-2 / AISI O1 / DIN 1.2510 / 100MnCrW4

1. Chemical Composition (wt%)

Element	C	Si	Mn	Cr	W	V	Fe
Specification	0.90–1.05	0.15–0.50	1.00–1.40	0.40–0.70	0.40–0.70	0.10–0.30	Balance

2. Welding Parameters: Laser vs. TIG

⚡ Laser Welding 0.2–0.6 mm

Preheat Temp	Room Temp – 100°C
Pulse Power	110–200 A
Shielding Gas	Argon ≥99.99% (3–6 L/min)
HAZ Impact	Minimal HAZ, preventing distortion on precision gauges

🔥 TIG Welding 0.8–2.4 mm

Preheat Temp	300°C – 400°C Mandatory
Welding Current	40–110 A (DCEN)
Shielding Gas	Argon ≥99.99% (8–12 L/min)
Post-Heat	Slow cooling or 200°C low-temp tempering

💡 Key Repair & Operation Instructions:

Low Distortion & Keen Edge: Mn-Cr-W composition delivers minimal dimensional change, maintaining razor-sharp cutting edges and high 58–62 HRC hardness.
Preheating Control (TIG): Preheating to **300°C–400°C** before TIG repair is essential to prevent cold cracking along the weld line.

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