DIN 1.2316 / X38CrMo16 Premium Mold Steel, S136 / M300 Grade Corrosion-Resistant Mold Steel
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Description
Premium 2316 Mold Steel – Superior Corrosion-Resistant Steel for Plastic Moulding Applications
2316 Steel Grade represents a premium-quality mold steel featuring 16% Chromium and 1% Molybdenum composition, engineered specifically for demanding plastic moulding environments where corrosion resistance and superior surface finish are paramount.
About 2316 Mold Steel
DIN 1.2316 is a martensitic stainless chromium-molybdenum steel renowned for its exceptional corrosion resistance, uniform hardness distribution, and outstanding polishability. The high chromium content (15.5-17.5%) provides a self-healing oxide layer that offers superior protection against aggressive plastics, particularly PVC and materials containing abrasive fillers. This grade is specially adapted for applications requiring mirror-finish surfaces (Ra < 0.1 μm), making it the preferred choice for high-gloss plastic components and coastal manufacturing environments.
The excessive cleanliness and homogeneity of 1.2316 steel make it exceptionally suitable for great polishing, achieving mirror-like finishes that meet the most stringent aesthetic requirements. Its pre-hardened condition (280-325 HB) ensures consistent performance across all dimensions while maintaining excellent machinability.
Key Advantages of 2316 Mold Steel
- Superior Corrosion Resistance: High chromium content provides exceptional protection against rust and chemical degradation, ideal for aggressive plastics like PVC.
- Outstanding Polishability: Achieves mirror-like surface finishes (Ra < 0.1 μm) perfect for high-gloss moulded parts.
- Uniform Hardness: Consistent hardness distribution across all cross-sections ensures reliable performance.
- Excellent Machinability: Easy to machine and fabricate, reducing production time and costs.
- High Surface Quality: Homogeneous microstructure enables streak-free finishing and exceptional surface aesthetics.
Important Considerations
Due to its high chromium content, 1.2316 steel is not recommended for nitriding processes or chrome plating. These treatments may not yield optimal results and could compromise the material’s inherent corrosion-resistant properties.
Chemical Composition of DIN 1.2316 Mold Steel
The precise chemical formulation of 1.2316 steel contributes to its exceptional performance characteristics:
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.33 – 0.45 |
| Chromium (Cr) | 15.5 – 17.5 |
| Molybdenum (Mo) | 0.80 – 1.30 |
| Manganese (Mn) | ≤ 1.50 |
| Silicon (Si) | ≤ 1.00 |
| Nickel (Ni) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
Variants of 1.2316 Steel
| Grade | C % | Si % | Mn % | Cr % | Mo % | Ni % | Special Characteristics |
|---|---|---|---|---|---|---|---|
| DIN 1.2316 | 0.33-0.43 | ≤1.00 | 1.0 | 15.0-17.0 | 1.00-1.30 | 1.00 | Standard grade |
| DIN 1.2316 ESR | 0.33-0.43 | ≤1.00 | 1.0 | 15.5-17.0 | 1.00-1.20 | 0.5 | Electro-slag remelted for superior cleanliness |
| DIN 1.2085 / 1.2316+S | 0.33-0.38 | ≤1.00 | 1.0 | 15.5-17.0 | – | ≤1.00 | Sulfur-enhanced for improved machinability |
Comparison with Other Plastic Mold Steels
1.2316 vs. 1.2083
Both are martensitic stainless steels, but 1.2316 offers superior corrosion resistance and higher toughness compared to 1.2083. While 1.2083 provides good etch resistance, 1.2316 delivers better overall performance for high-polish applications.
1.2316 vs. 1.2085
1.2085 features similarly high chromium content (15.5-17.5%) and offers superior pitting protection. However, 1.2316 includes molybdenum for enhanced corrosion resistance and improved hardenability.
1.2316 vs. 1.2311/1.2312 (P20 Variants)
While DIN 1.2311 and 1.2312 are non-stainless P20-type steels offering uniform hardness for large moulds, they lack the corrosion resistance provided by 1.2316’s high chromium content. For applications involving aggressive plastics or humid environments, 1.2316 is the superior choice.
Applications of 2316 Mold Steel
1.2316 steel is extensively used across various industries due to its unique combination of corrosion resistance, polishability, and durability. Common applications include:
- Plastic Injection Moulds: Ideal for manufacturing high-precision moulds requiring mirror-finish surfaces.
- PVC Processing: Exceptional resistance to corrosive gases released during PVC moulding.
- High-Gloss Components: Perfect for automotive interior parts, consumer electronics, and cosmetic packaging.
- Medical Device Moulding: Suitable for precision medical components requiring high surface quality.
- Coastal Manufacturing: Excellent choice for facilities in humid or saltwater environments.
- Food Processing Equipment: Corrosion-resistant properties make it suitable for food contact applications.
Equivalent and Alternative Grades
2316 Mold Steel corresponds to several internationally recognized standards:
- DIN 1.2316 (German Standard)
- AISI 420 Modified (American Standard)
- JIS SUS420J2 (Japanese Standard)
- X38CrMo16 (European Material Code)
We also offer complementary grades including:
- DIN 1.2311 / P20 Steel – Versatile pre-hardened plastic mould steel
- DIN 1.2312 / P20+S – Sulfur-enhanced P20 for improved machinability
- DIN 1.2083 – Martensitic stainless steel for plastic moulds
- DIN 1.2085 – High-chromium stainless steel with superior pitting resistance
- D2 Tool Steel / DIN 1.2379 / X153CrMo12 / SKD11 – Premium cold work tool steel
Availability and Supply
Milano Special Steel offers 2316 Mold Steel in various forms, including:
- Plates – Available in custom dimensions
- Round Bars – Multiple diameter options
- Cut-to-Size Pieces – Precision-cut to your specifications
We maintain a robust inventory to ensure immediate availability, with competitive pricing for industries across India. Our supply network covers key industrial hubs including Delhi, Gurugram, Noida, Manesar, Pune, Bangalore, and Surat, along with comprehensive pan-India distribution.
Why Choose Milano Special Steel?
- 50+ Years of Excellence: Decades of industry expertise and proven reliability.
- Premium Quality Assurance: Every batch undergoes rigorous quality checks to meet international standards.
- Technical Expertise: Our team provides professional guidance on grade selection and application optimization.
- Competitive Pricing: Best-in-market rates without compromising quality.
- Nationwide Delivery: Seamless supply across all major Indian industrial centers.
Contact Us
For inquiries, price quotations, or technical consultation:
- Email: info@milanospecialsteel.com
- Websites:
- Locations: Gurugram, Kundli, Sonipat, Manesar, Bawal, Bhiwadi, Dharuhera, Faridabad, Ghaziabad, Noida, Maharashtra, Bihar, West Bengal, Punjab, Gujarat, Bangalore, Pune, Surat.
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