S136 Tool Steel

S136 Tool Steel Chemical Composition

S136 Tool Steel Equivalent Grades

The approximate correspondence of S136 in the standards of various countries is as follows:

1. China (GB): 4Cr13
2. Germany (DIN / W-Nr):X42Cr13/1.2083
3. Austria(BOHLER):M310
4. USA (AISI/ASTM):420SS
5. Sweden (ASSAB):S136 Tool Steel
6. Russia (GOST/ГОСТ):40X13
7. Japan（JIS)：SUS420J2

S136 Tool Steel Specifications

S136 Tool Steel Customized Options

1. Custom Surface Conditions: Black; Sandblasted; Grinded; Turned/Machined/Milled/Bright
2. Custom Chemical Composition: Capable of producing standard grades such as GB, DIN, ASTM, JIS, etc. Chemical composition can be custom-produced individually.
3. Custom Specifications: Round steel (diameter) and plates (thickness, width) can be custom-produced.
4. Professional packaging for long-term storage or extreme transportation conditions: Including black paint spraying on all sides, plastic film wrapping, anti-rust oil spraying, and delivery in wooden cases.
5. Custom production according to samples or technical agreements.
6. S136 Tool Steel Electroslag Remelting (S136 ESR): Premium option with higher purity and isotropic properties for critical applications.

S136 Tool Steel Smelting process

S136 Tool Steel Physical Properties

1. Density: approximately 7.85 g/cm³.
2. Factory hardness: HB 175-215 (pre-hardened state).
3. Mirror polishing accuracy: Ra can reach ≤0.01 μm.
4. Heat deformation resistance: Small heat treatment deformation and high dimensional stability.
5. Corrosion resistance: The high chromium content forms a dense oxide film, making it suitable for humid and corrosive injection molding environments.

S136 Tool Steel Mechanical & Performance Properties

1. Outstanding corrosion resistance: Suitable for injection molds of corrosive plastics such as PVC, PMMA, and PC.
2. Excellent mirror polishing performance: reaching industrial mirror standards (such as optical lens molds).
3. Wear resistance and moderate hardness: After quenching, it can reach HRC 50-54, durable and maintaining toughness.
4. Minimal deformation during heat treatment: Suitable for complex-structured molds or large-sized parts.
5. Good machinability: High processing efficiency in the pre-hardened state, convenient for EDM, boring and milling, and electrical discharge machining.

S136 Tool Steel Product Applications

1. Precision plastic injection molds (optical lenses, transparent components, medical devices).
2. Injection molding of corrosive resins such as PVC, POM, and PC.
3. Medical and food-grade plastic molds.
4. Small and medium-sized, transparent, optical plastic part molds.