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1.2316 steel (X36CrMo17 / AISI 420 modified) is a corrosion-resistant plastic mould steel widely used where the mould is exposed to moisture, chemicals, or humid environments. Below is a clear, practical summary.

🔹 Key Properties Chemical Composition (typical)

• C: 0.33 – 0.45%

• Cr: 16.0 – 18.0%

• Mo: 1.0 – 1.3%

• Small amounts of Mn & Si

Mechanical Characteristics

• Hardness (quenched & tempered): 28 – 34 HRC

• After nitriding: up to 900–1000 HV surface hardness

• Good corrosion resistance due to high chromium

• Excellent polishability – suitable for mirror finish

• Good wear resistance

• Good machinability in pre-hardened condition

• Stable dimensions during heat treatment

Physical Advantages

• Resistant to:

  • humid environments

  • PVC processing gases

  • weak acids & cooling water

• Low maintenance mould life

• Can be welded with proper procedure

🔹 Common Uses 1) Plastic Moulding

• Moulds for PVC, ABS, PC, PMMA, PET

• Transparent product moulds (requires high polish)

• Medical & food packaging moulds

• Cosmetic container moulds

• Bottle cap and closure moulds

2) Corrosive Environment Tools

• Moulds with water cooling channels

• Components exposed to chemicals

• Die sets in humid coastal areas

3) Engineering Parts

• Pump shafts

• Valve components

• Wear parts needing corrosion resistance

🔹 Heat Treatment Guide (Typical)

• Soft annealing: ~780–820°C

• Hardening: 1000–1050°C

• Tempering: 200–300°C

• Nitriding: for higher surface wear resistance

🔹 Comparison Advantage vs 1.2083 💡 When to Choose 1.2316?

Choose this grade if:

• Your mould will run PVC or corrosive polymers

• Product needs mirror finish / optical clarity

• Mould will work in humid or coastal locations

• You want ready-to-use pre-hardened steel

Additional Information:

• Item Code: 1.2316
• Production Capacity: NA
• Delivery Time: 1-3DAYS
• Packaging Details: AS PER CLIENT