106/1ST FLOOR, V.P ROAD,
PRARTHANA SAMAJ GIRGAON,
MUMBAI - 400004
022 66362378 / 67436484
+91 9321631821 / 9920148679
jscmetalpurav@gmail.com
ssalloysales@gmail.com
SS Alloy supplies P20 plastic mold steel for injection molds, mold bases, cavities, cores, die holders and tooling blocks that need good machinability, toughness, polishability and stable mould performance.
P20 plastic mold steel is a low-alloy mold steel grade for plastic injection molds, mould bases, cavities, cores and die holders. Therefore, mold makers choose P20 when they need a practical balance of easy machining, toughness, surface finish and steady service life.
As a P20 plastic mold steel manufacturer and supplier in India, SS Alloy supplies plates, flats, blocks, rounds and cut-to-size material. Buyers also request this grade as AISI P20, DIN 1.2311 and 40CrMnMo7.
P20 is commonly supplied in pre-hardened condition. As a result, mold makers can often machine the cavity or mould base without a separate hardening cycle after machining.
This helps reduce production time and lowers the risk of distortion after machining. In addition, P20 supports good surface finish for many plastic parts.
For larger molds that need more uniform through-hardness, compare P20 with P20+Ni or DIN 1.2738. However, if the application involves hot die casting or forging, review H13 Hot Work Tool Steel.
If the tool must cut, punch or resist abrasive wear in cold work conditions, compare P20 with D2 Cold Work Tool Steel.
Manufacturers use P20 plastic mold steel when they need a mold material that machines well and works reliably in plastic mould applications. Moreover, the grade helps support practical production timelines.
Because P20 often comes pre-hardened, mold makers can machine many tools directly.
Important for cavities, cores and mold basesAlso, P20 gives useful toughness for general plastic mold applications and tooling blocks.
Important for mold bases and die holdersIn addition, P20 can support good finishing for many visible plastic part requirements.
Important for visible molded componentsAs a result, many projects avoid a separate hardening cycle after final machining.
Useful for reducing lead time and distortion riskTherefore, P20 helps mold makers control size and shape during normal machining work.
Useful for mould bases and cut blocksFor selected applications, heat treaters can nitride P20 to improve surface wear resistance.
Useful when surface life mattersThe values below show typical reference ranges for P20 plastic mold steel. However, always verify the final chemistry, condition and hardness through the material test certificate.
| Technical Detail | P20 Reference Data | Buyer Note |
|---|---|---|
| AISI / ASTM | P20 | Common plastic mold steel name |
| DIN / W.Nr. | 1.2311 | Often requested for European grade match |
| EN / Common Name | 40CrMnMo7 | Common reference for P20 type mould steel |
| Modified Variant | P20+Ni / DIN 1.2738 | Often considered for larger mold blocks |
| Carbon | 0.35 - 0.45% | Supports strength and hardness balance |
| Chromium | 1.80 - 2.10% | Supports hardenability and mold steel performance |
| Manganese | 1.30 - 1.60% | Supports strength and steelmaking control |
| Molybdenum | 0.15 - 0.25% | Supports hardenability and toughness |
| Silicon | 0.20 - 0.40% | Common alloy balance element in tool steel grades |
The correct tool steel depends on working temperature, wear, tool size and toughness. Therefore, this quick comparison helps buyers avoid selecting a grade only by name.
| Requirement | Recommended Grade | Why It Fits | Related Page |
|---|---|---|---|
| Plastic injection molds, mold bases, cavities and die holders | P20 | Pre-hardened mold steel with good machinability and toughness | Current Page |
| Hot die casting, forging, extrusion and thermal cycling | H13 | Good hot hardness, toughness and thermal fatigue resistance | H13 Hot Work Tool Steel |
| Cold blanking, punching, cutting, slitting and forming | D2 | High wear resistance and dimensional stability for cold work tools | D2 Cold Work Tool Steel |
Mold makers use P20 plastic mold steel where tooling needs good machining, toughness and surface finish support. Moreover, the grade works well for many plastic molding and mold base needs.
Accurate quotation and supply depend on the grade, size, condition, test need and final use. Therefore, share these details early to avoid delays and improve material selection.
First, mention whether you need AISI P20, DIN 1.2311, 40CrMnMo7, P20+Ni or DIN 1.2738.
Next, share the required form such as plate, flat, block, round or cut piece. Also, include thickness, width, length and total quantity.
Also, confirm whether you need pre-hardened P20 plastic mold steel or a specific hardness shown by the mold designer.
Finally, mention MTC, test needs, inspection, packing method and delivery location so dispatch can be planned correctly.
Buying P20 plastic mold steel is not only about matching a grade name. Size, condition, documents, cutting support and delivery planning also matter for mold makers and industrial buyers.
For example, we help customers identify P20, 1.2311, P20+Ni and related mold steel needs.
In addition, SS Alloy can supply P20 in plates, flats, blocks, rounds and custom-cut sizes.
Also, our team can provide material certificate and inspection support as needed for the order.
Finally, we serve mold makers, tool rooms and engineering companies across Mumbai, Maharashtra and India.
For technical buying decisions, always check the project drawing, MTC and heat treatment plan. In addition, these external references can help buyers understand P20 plastic mold steel and general mold steel use.
First, ASM International explains mold steel choice and uses in this Tool Steels mold steels chapter.
In addition, ASM International covers heat treatment for mold steels, including P20, in this mold steel heat treating reference.
These answers help buyers understand where P20 plastic mold steel fits. They also show what details help SS Alloy prepare a correct quotation.
Generally, mold makers use P20 plastic mold steel for injection molds, mold bases, cavities, cores, die holders and plastic tooling.
Yes, suppliers commonly offer P20 in pre-hardened condition. However, buyers should confirm the actual hardness from the MTC.
P20+Ni contains nickel and often suits larger mold blocks. In contrast, standard P20 works well for many small and medium molds.
Yes, P20 usually suits plastic molds better because it offers easy machining, toughness and pre-hardened supply. However, D2 suits cold work wear tools.
Yes. For selected uses, heat treaters can nitride P20 to improve surface hardness and wear resistance.
Yes, SS Alloy can supply P20 plastic mold steel with material test certificate and inspection documents as needed for the order.
Send us your required P20 plastic mold steel grade, size, form, quantity, condition and delivery location. Then, our team can help you check availability for plates, flats, blocks, rounds and cut-to-size P20 material.
Request P20 QuoteHave questions about our metal products or need a quotation? Send us a message and we will respond shortly.
ARIHANT LIFESCAPES, 106/1ST FLOOR, V.P ROAD,
PRARTHANA SAMAJ GIRGAON, MUMBAI - 400004
022 66362378 / 022 67436484
+91 9920148679 / +91 9321631821
jscmetalpurav@gmail.com
ssalloysales@gmail.com
Strategically located warehouses to ensure faster dispatch, better inventory management, and efficient delivery support.
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MANDIR Mumbai 400004
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HUTATMA DATTARAM BHAU KOYANDE MARG
MAZGAON, Maharashtra 400010
Plot No. 1824, Steel Market,
Kalamboli, Navi Mumbai – 410218