Forged Steel Block 1.2738 For Making High Demand Large Plasic Mould
Chemical Composition(%):
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| P20+Ni | 0.30-0.40 | 0.20-0.50 | 1.00-1.50 | ≤0.030 | ≤0.030 | 1.50-2.00 | 0.25-0.40 | 0.80-1.20 |
| 1.2738 | 0.35-0.45 | 0.20-0.40 | 1.30-1.60 | ≤0.035 | ≤0.035 | 1.80-2.10 | 0.15-0.25 | 0.90-1.20 |
| 718 | 0.32-0.45 | 0.20-0.40 | 1.10-1.50 | ≤0.030 | ≤0.030 | 1.70-2.00 | 0.30-0.55 | 0.80-1.20 |
Introduction:
1.2738 is one kind of pre-harndened mirror plasitc die steel. With
the alloy optimization and structure control key technology, we can
gurantee the steel die block has high hardness uniformity,
excellent polishing property and maching property with largest
cross sections in China.
Available size(mm):
| Flat Bar Size(mm) | Round bar Size(mm) |
| Thickness | Width | Length | Diameter | Length |
| 155-1000 | 800-1600 | 2000-6000 | 20-200 | 2000-6000 |
Similar grades: DIN-1.2738 / AISI-P20+Ni / ASSAB-718 / GB-3Cr2niMnMo
Recommend heat treatment:
| Quenching | Tempering |
| Heating temperature | Cooling | Hardness/HRC | Heating temperature | Cooling | Hardness/HRC |
| 840-870 | OIL OR AIR | ≥50 | 550-640 | AIR | 28-36 |
Applications:
1,Plastic molds for injection compressing and injection molding
2,TV cabinets,drum mold of washing machine,etc.
Features:
| 1, | Good welding property of pre-hardened die blocks; |
| 2, | Good polishing property(high hardness uniformity,hardness
fluctuation≤2HRC); |
| 3, | Excellent working; |
| 4, | Extra large cross sections:700mm×1300mm and weighs 20MT for one
piece; |
| 5, | Application hardness:28-36HRC. |
Devlivery condition:
EF or ESR, Hot rolled or forged, black surfaceor milling, hardned
or tempering to 33-37HRC.
Our service:
1, Sample can be offered with sample charge can courier fee by
buyer’s side;
2, We have full stock, and can deliver within short time. Many
styles for your choices;
3, Good Quality + Factory Price + Quick Response + Reliable
Service, is what we are trying best to offer you;
4, All of our products are produce by our professional workman and
we have our high-work-effect foreign trade team, you can totally
believe our service.
Our main products:
Plastic mould steel: S50C/1.1210/SAE1050, 1.2311/PDS-3/P20,
1.2738/P20+Ni, NAK80/P21, 1.2083/420
Hot work mould steel: H13/1.2344/SKD61, 1.2713/L6/SKT4,
1.2581/H21/SKD5
Cold work mould steel: 1.2379/D3/SKD1, 1.2510/O1/SKS3,
1.2080/D3/SKD1
Alloy steel: 1.7035/SCr440/SAE5140, 1.7225/SAE4140/SCM440,
EN31/SAE52100, 1.6511/SAE4340
High speed steel: M2/1.3343/SKH51, T1/1.3355/SKH2,
M35/1.3243/SKH35, M42/1.3247/SKH59
Corner of factory:
