P20 Steel Grade 1.2738H.H. Round

Price 290.0 INR/ Kilograms

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MOQ : 100 Kilograms

P20 Steel Grade 1.2738H.H. Round Specification

Carburizing
Not suitable

Weldability
Yes, with care

Machinability
Good

Sulfur Content
Low

Stock Form
Rolled/forged round

Annealing
Not required before use

Nickel Alloyed
Yes

Polishing Ability
Excellent

Prehardened
Supplied prehardened

Delivery State
Pre-hardened, tempered

Cut Lengths
On request

Impact Strength
High

P20 Steel Grade 1.2738H.H. Round Trade Information

Minimum Order Quantity
100 Kilograms

Payment Terms
Cash in Advance (CID)

Supply Ability
100 Kilograms Per Month

Delivery Time
7 Days

Sample Available
No

Main Domestic Market
All India

About P20 Steel Grade 1.2738H.H. Round

Steel World is stockiest, supplier,dealer and manufacturer of the P20 Steel Grade 1.2738H.H. Round. P20 Steel Grade 1.2738H.H. Plate:

Material Description:
- P20 High Hard (1.2738H.H.) is an improved pre-hardened mold steel specifically designed for large plastic molds.
- It undergoes forging on a 5000-ton press, ensuring maximum deformation during the forging process.
- Supplied hardness ranges from 321 to 352 HB (34-38 HRC), with minimal hardness loss in large cross sections.
Characteristics:
- Homogeneous Strength: Suitable even for large dimensions.
- Applications:
  - Big cavity plates with deep cavities.
  - Highly stressed core components.
Heat Treatment:
- Stress Relieving Temperature: 850F - 900F (Hold 1 hour per inch; air cool).
- Tempering: Heat uniformly and thoroughly at the selected temperature, holding for one hour per inch of total thickness.
Physical Properties:
- Density: Approximately 0.284 lbs/in at room temperature.
- Coefficient of Thermal Expansion:
  - 700F 2000F: 6.8 x 10/F
  - 700F 4000F: 7.0 x 10/F
  - 700F 5750F: 7.1 x 10/F
- Thermal Conductivity:
  - 700F: 202 Btu/in/ft/hr/F
  - 4000F: 209 Btu/in/ft/hr/F
  - 8000F: 216 Btu/in/ft/hr/F
Mechanical Properties (Room Temperature, hardened and tempered to 321 BHN):
- Yield Strength: 130 KSI
- Tensile Strength: 150 KSI
- Elongation: 15%
- Reduction Area: 35%
Welding:
- Preheat insert to 900F 1000F and maintain temperature above 800F during welding.
- Use TIG with D.C. positive polarity.
- Slowly cool down to 350F before post-heat treatment.
Polishing:
- Can achieve an A-2 surface finish with proper procedures.
- Caution to avoid over-polishing (orange peel effect and pitting).

Versatile Steel for Industrial Tooling

P20 Steel Grade 1.2738H.H. Round combines strength, durability, and exceptional machinability, making it a preferred choice for mold manufacturers and tooling applications. Its nickel alloy content ensures consistent mechanical properties, while the prehardened state saves time by allowing immediate use without annealing. The material's high impact resistance and excellent polishability contribute to finer surface finishes-vital for precise molds.

Custom Solutions and Reliable Supply

Cut lengths are available on request, accommodating specific engineering needs. Suppliers, exporters, and manufacturers across India provide P20 Steel Grade 1.2738H.H. Rounds in rolled or forged forms, ensuring a steady and reliable supply chain for sectors like automotive, plastics, and general manufacturing. Both bulk and small-volume requirements can be fulfilled through a robust network of traders, wholesalers, and retailers.

FAQ's of P20 Steel Grade 1.2738H.H. Round:

Q: How can P20 Steel Grade 1.2738H.H. Round be welded effectively?

A: Welding of P20 Steel 1.2738H.H. is possible with proper procedures and post-weld treatments to maintain material properties. It is advisable to preheat the steel and control cooling rates to avoid cracking and distortion.

Q: What are the primary applications of P20 Steel 1.2738H.H. Rounds in industry?

A: These rounds are predominantly used for making plastic injection molds, die casting tools, and components that require high polishability and strength, such as core and cavity inserts in mold making.

Q: When is it necessary to anneal P20 Steel 1.2738H.H. before use?

A: Annealing is not required before use because the steel is delivered prehardened and tempered, allowing immediate machining and tooling without additional softening treatments.

Q: Where is P20 Steel Grade 1.2738H.H. Round available in India?

A: This steel grade is distributed by a wide network of suppliers, traders, and manufacturers across India, including major industrial hubs. Custom orders for specific diameters and cut lengths can be fulfilled upon request.

Q: What are the advantages of choosing prehardened P20 Steel 1.2738H.H.?

A: Prehardened P20 Steel eliminates the need for initial heat treatment, reducing lead times and production costs. Its consistent hardness and excellent machinability improve efficiency in manufacturing high-performance molds.

Q: Can P20 Steel 1.2738H.H. undergo carburizing for surface hardening?

A: No, this steel grade is not suitable for carburizing processes due to its alloy composition. Alternative surface treatments may be considered if surface hardness enhancement is required.

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