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XX.921.T.093.36A - Weld Mold 9210 P-20 Tool Steel TIG Rod 1/16" (10lb Tube)

Packaging: 10lb tube
$51.36/lb $495.90/10lb tube only $49.59/lbSave 3%

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OVERVIEW

Precision P-20 Tool Steel Alloys for Industrial Mold Repair

The Weld Mold 9210 is a premium quality TIG welding rod specifically engineered for the repair and fabrication of AISI P-20 tool steel. Widely recognized in the tool and die industry, this Chrome-Molybdenum alloy is the definitive choice for welding plastic injection molds, compression molds, and die-casting dies where a seamless match to the base metal is critical. The 1/16" (1.6mm) diameter provides excellent control for fine detail work on mold edges, corners, and parting lines, allowing for precise buildup without excessive heat input.

One of the primary challenges in mold repair is achieving a weld deposit that behaves identically to the base material during post-weld processing. Weld Mold 9210 excels in this regard, offering a hardness range of 28-32 RC in the as-welded condition, which closely mimics the pre-hardened state of standard P-20 steel. This similarity ensures that when the mold is machined, the transition between the weld and the base metal is imperceptible. Furthermore, the alloy is formulated to respond uniformly to acid etching, texturing, and photo-etching processes, preventing the "halo" effect often seen with inferior filler metals.

For applications requiring a high-gloss finish, Weld Mold 9210 is fully polishable to a mirror finish (SPI A-1/A-2), making it indispensable for cosmetic surfaces in plastic molding. The rod is produced with strict quality controls to ensure a clean surface free of contaminants, resulting in porosity-free welds that maintain the structural integrity of the die. Whether correcting machining errors, repairing wear, or implementing engineering changes, this 10 lb tube of P-20 TIG rod provides the reliability and consistency demanded by professional mold makers and industrial repair facilities.

Technical Specifications

  • Alloy Type: Chrome-Molybdenum Tool Steel (P-20)
  • Diameter: 1/16" (1.6mm)
  • Hardness: 28-32 HRC (As Welded)
  • Heat Treatment: Flame hardenable and heat treatable
  • Primary Application: Plastic injection molds, zinc die casting dies
Additional Information
Packaging Description:10lb tube
Weld Process:TIG (tig), TIG
Grade:Hardfacing, P-20
Packaging:10lb tube, 10lb tube (10lb-tube)
Brand:n/a
Diameter:1.6mm, 1.6mm (1-6mm)
Position:n/a
Polarity:NA
Material Composition:AISI P-20 Tool Steel, Chrome-Molybdenum
Rod Type:Solid Wire, TIG
Hardness:28-32 RC (As Welded)
Applications:Die Casting Dies, Mold Repair, Plastic Injection Molds
----- new values below ----
Material Composition:AISI P-20 Tool Steel, Chrome-Molybdenum
Rod Type:TIG, Solid Wire
Hardness:28-32 RC (As Welded)
Applications:Plastic Injection Molds, Die Casting Dies, Mold Repair
Heat Treatment:Preheat Recommended, Temperable
brand:Weld Mold
diameter:1.6mm (1-6mm)
packaging:10lb tube (10lb-tube)
weld-process:TIG (tig)
grade:P-20

INCLUDED

  • 10 lb Tube of Weld Mold 9210 (P-20) TIG Rods (1/16" Diameter)
  • Product Label with Heat Number

APPLICATIONS

  • Repairing cracks and chips in P-20 plastic injection molds
  • Building up worn parting lines and shut-off surfaces
  • Correcting machining errors on tool steel dies
  • Refurbishing zinc die-casting dies
  • Engineering changes on pre-hardened mold bases
  • Repairing heavy machinery shafts and gears made of similar alloy steel

FAQ

Weld Mold 9210 typically deposits a weld with a hardness of 28-32 Rockwell C (HRC), which matches the standard pre-hardened state of P-20 tool steel.

Yes, for best results and to prevent cracking, preheating the P-20 base metal to approximately 400°F - 600°F is recommended, followed by a slow cool.

Yes, the deposit is designed to have excellent machinability, similar to the base P-20 material, allowing for easy milling, drilling, and grinding.

Absolutely. Weld Mold 9210 is formulated to have a chemical composition that responds to acid etching and texturing at the same rate as the base metal, ensuring a uniform appearance.

100% Argon is the standard shielding gas recommended for TIG welding with Weld Mold 9210 to ensure a clean, oxidation-free puddle.

Yes, Weld Mold 9210 is highly polishable and is suitable for molds requiring an SPI A-1 or A-2 mirror finish.

These specific rods are 1/16 inch (approximately 1.6mm) in diameter.

While the as-welded hardness matches P-20, stress relieving at 900°F-1000°F is often recommended for extensive repairs to ensure dimensional stability.