P20 Tool Steel Round Bar Manufacturer, Supplier & Stockist | P20 / DIN 1.2311 / AISI P20 Tool Steel Round Bar
P20 Tool Steel Round Bar is one of the most widely used plastic mould steels in the world. Known for its excellent toughness, uniform hardness, good machinability, and reliable performance, P20 Tool Steel is the first choice for plastic injection moulds, die blocks, and tooling applications where strength and durability matter.
We supply high-quality P20 Tool Steel Round Bars that meet international standards such as AISI P20, DIN 1.2311, ASTM P20 Mold Tool Steel, ASTM A681-08 Alloy Tool Steel, and IS-40CrMnMo7. Our P20 steel products are trusted across industries for consistent performance, long service life, and ease of fabrication.
What is P20 Tool Steel?
P20 Tool Steel is a pre-hardened alloy tool steel mainly used for plastic moulds and die blocks. Unlike many tool steels that require heat treatment after machining, AISI P20 tool steels are supplied in a pre-hardened condition (28–34 HRC). This saves time, reduces production costs, and ensures dimensional stability.
P20 steel contains chromium, molybdenum, and manganese, which provide a good balance of strength, toughness, and wear resistance. Because of these properties, Plastic Mould Steel P20 is commonly used for medium to large moulds where polishing, machining, and surface finish are important.
Key Features of P20 Tool Steel Round Bar
- Pre-Hardened for Easy Machining: P20 steel is supplied pre-hardened, which means it can be machined directly without additional heat treatment. This reduces lead time and tooling costs.
- Excellent Toughness: The alloy composition provides good resistance to cracking, making Die Block P20 suitable for large and complex moulds.
- Good Surface Finish: P20 Tool Steel offers good polishing properties, making it ideal for plastic moulds where surface quality matters.
- Uniform Hardness: Consistent hardness throughout the cross-section ensures reliable performance and longer mould life.
- Weld Repair Capability: P20 steel can be welded for mould repair with proper preheating and post-weld treatment.
Equivalent Grades of P20 Tool Steel
P20 Tool Steel is known globally under different standards and names:
- AISI P20
- DIN 1.2311
- IS-40CrMnMo7
- Tool Steel P20 (T51620)
- ASTM P20 Mold Tool Steel
- ASTM A681-08 Alloy Tool Steel
These equivalents ensure global acceptance and easy replacement in international projects.
Forms We Supply in P20 Steel
We manufacture, stock, and supply P20 steel in multiple shapes to suit different tooling needs:
- P20 Tool Steel Round Bar
- P-20 Square Bar
- P-20 Flat Bar
- AISI P20 Tool Steel Rods
- DIN 1.2311 Rods
- 1.2311 Tool Steel Forging
- Die Block P20
- P-20 Steel Round Bar
As a reliable P-20 Steel Round Bar Manufacturer, P-20 Steel Supplier, and P-20 Stockist, we ensure ready availability in standard and custom sizes.
AISI P20 (DIN-1.2311) Round Bar – Specifications
| Specification | Details |
| Material Grade | P20 Tool Steel |
| Standards | AISI P20, DIN 1.2311, ASTM P20, ASTM A681-08 |
| Other Designations | IS-40CrMnMo7, T51620 |
| Shape | Round, Square, Flat |
| Condition | Pre-Hardened |
| Hardness | 28–34 HRC |
| Surface Finish | Black, Bright, Peeled, Polished |
| Size Range | Custom sizes available |
| Supply Form | Hot Rolled / Forged |
Chemical Composition of AISI P20 Tool Steel
| Element | Percentage (%) |
| Carbon (C) | 0.28 – 0.40 |
| Manganese (Mn) | 0.60 – 1.00 |
| Chromium (Cr) | 1.40 – 2.00 |
| Molybdenum (Mo) | 0.30 – 0.55 |
| Silicon (Si) | ≤ 0.40 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
Mechanical Properties of ASTM P20 Mold Tool Steel
| Property | Typical Value |
| Hardness | 28 – 34 HRC |
| Tensile Strength | ~1000 – 1100 MPa |
| Yield Strength | ~850 MPa |
| Impact Toughness | High |
| Wear Resistance | Moderate |
| Machinability | Excellent |
P20 Tool Steel vs OHNS Steel Round Bar
| Property | P20 Tool Steel | OHNS Steel |
| Hardness Condition | Pre-Hardened | Requires Heat Treatment |
| Toughness | High | Moderate |
| Wear Resistance | Moderate | High |
| Best Use | Plastic Moulds | Cutting Tools |
| Machinability | Excellent | Good |
Applications of P20 Tool Steel
Because of its balanced properties, Plastic Mould Steel P20 is used across multiple industries:
- Plastic Injection Moulds
- Blow Moulds
- Die Casting Dies (low pressure)
- Automotive Plastic Components
- Household Appliance Moulds
- Die Blocks and Tool Holders
- Large Mould Bases
- Engineering Tooling
AISI P20 Tool Steel Round Bar is especially preferred for medium-to-large moulds where toughness is more important than extreme hardness.
Why Choose Our P20 Tool Steel Round Bar?
We do more than just supply steel—we understand tooling needs from real industry experience.
- Consistent quality from trusted mills
- Accurate chemical and mechanical properties
- Ready stock of P-20 Round, P-20 Square, and P-20 Flat
- Custom cutting and forging options
- Proper testing and inspection before dispatch
- Timely delivery for urgent projects
Our experience in supplying ASTM A681-08 Alloy Tool Steel and DIN 1.2311 Tool Steel Forging allows us to guide customers toward the right material for their application.
DIN 1.2311 Rods P-20 Steel Supplier, Manufacturer in India
P20 Tool Steel Round Bar is a proven, reliable, and cost-effective solution for plastic mould and tooling applications. With excellent machinability, good toughness, and consistent hardness, AISI P20 Tool Steel continues to be the industry standard for mould makers worldwide.
Whether you need P-20 Steel Round Bar, DIN 1.2311 Rods, or 1.2311 Tool Steel Forging, we are ready to supply material that meets your technical and project requirements—backed by real experience, technical knowledge, and trusted quality.
If you are looking for a dependable P-20 Steel Supplier, Manufacturer, or Stockist, we are here to support your tooling needs with confidence.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality P20 Tool Steel Round Bar. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.

