Polished Tool Steel Flat Bar , Hardened Tool Steel P20+Ni Width 155 - 2200mm
High Quality, Good Weldability, Polished Tool Steel Bar P20+Ni
Equivalent grades
| GB | DIN | AISI | ASSAB |
| 3Cr2NiMnMo | 1.2738 | P20+Ni | 718 |
Chemical Composition(%)
| C | Si | Mn | P | S | Cr | Mo | Ni |
| 0.28-0.40 | 0.20-0.80 | 0.60-1.00 | ≤0.03 | ≤0.015 | 1.40-2.00 | 0.30-0.55 | 0.80-1.20 |
Hardness: Pre-hardened 33-37 HRC
Available size(mm)
| Plate/Flat Bar Size(mm) | Round bar Size(mm) | |||
| Thickness | Width | Length | Diameter | Length |
| 10-1100 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 |
Delivery Time
Stock items 15-20 days; customized items 30-50 days.
Packing: Standard export packing; customers' special requests are accepted
About Tool Steel Bar P20+Ni
P20+Ni is a German-made mold steel pre-hardened plastic mold steel and universal plastic mold steel.
It adds with the mass fraction of about 1% nickel, the material is pure, the hardness is even (even if the thickness is over 500mm), the hardenability is good, the diameter or the thickness is less than 100mm, The calcification and vacuum degassing, but also has excellent polishing, striae effect is good, processability and good electrical corrosion. Low prices, good weldability.
P20 tool steel is Germany super pre-hardened plastic mold steel, vacuum degassing and ESR remelting.
Pure steel, the hardness is still uniform when the thickness ≥ 500mm; sulfur content and gas containing very low (ω (S) ≤ 0.005%) , excellent mirror polishing performance, etching processability, EDM spark processing performance is good; pre-hardened state of supply.
No re-heat treatment can be directly engraved die processing; with excellent machinability, cutting and polishing, stress relief annealing and surface nitrogen Treatment, size and hardness changes little.
Local hardening with oxyacetylene flame partial heating can be achieved: a hardened area will be required, heated to light red (850-950 ° C), and then cooled in air.
In order to prevent excessive stress caused mold cracking. Should be tempered at 150 ~ 200 ° C, after the flame hardening. Surface hardness can reach 45 ~ 50HRC. Note that during the flame hardening process, the mold should be preheated 150 ~ 200 ° C to prevent mold cracking. Nitriding mold can get high hardness of the surface organization, nitride surface smooth and dense, with good corrosion resistance, is conducive to product release and improve production efficiency.
Why Choose Us?
Guangzhou Changfeng Steel Co., Ltd is a mould steel stockist, we have our own factory and trading company. Our main steels are carbon tool steel, plastic mold steel, hot work tool steel, cold work tool steel, alloy steel for mechanical, etc.
1. Competitive price and high quality
2. Quick delivery and standard exporting package
3. OEM/ODM order accept
4. Flexible payment with T/T, L/C
5. Smooth production ability(1000tons/month)
6. Approved by ISO9001, CE, SGS every year
7. Best service with 24 hours reply
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.