Machining and heat treatment are available.
Also, we advise you in choosing the right materials.
1.2738 Steel Forged Blocks for making large size of plastic mould
| AISI/SAE | DIN/W.Nr | JIS | GB | ||||||||
| P20+Ni | 1.2738 | / | 3Cr2MnNiMo | ||||||||
Chemical Composition (%)
| C | Si | Mn | P | S | Cr | Mo | Ni | ||||||||
| 0.35 | 0.20 | 1.30 | ≤ | ≤ | 1.80 | 0.15 | 0.90 | ||||||||
| 0.45 | 0.40 | 1.60 | 0.030 | 0.030 | 2.10 | 0.25 | 1.20 |
Dimensions
| Thickness(mm) | Width(mm) | Length(mm) | ||||||
| 20-450 | 1600-2300 | 3000-5800 |
| 47 set of Vertical Band Saw | ||||||||
| Strong cutting capacity!!!Monthly 250 tons per set | ||||||||
| We cut and machine the steel plate as your required sizes. | ||||||||
| We guarantee a prompt delivery time. | ||||||||
| P20+Ni is recommended for the Blocks thickness over 450mm |
Delivery Condition
EAF+LF+VD, Hot rolled, Black surface or Machined, Quenching + Tempering, Hardness 28-34HRC or
30-36HRC or as customized, UT 100% Passed
Characteristics
1. Widely used plastic mold steel with excellent comprehensive mechanical properties, high hardenability, uniformed hardness throughout section for large size steel after quenching and tempering.
2. With good polishing ability and low toughness.
3. To be used directly after pre-hardening, guarantee good usability and avoid deformation after heat treatment for the mold.
1. Suitable for making oversized or large size plastic molds with high precision and long service life.
2. Used for making low melting-pointed alloyed die casting moulds, like Tin, Zinc, Lead.
Forging Technique
| Heat Temperature | Start Forging Temperature | Finish Forging Temperature | Cooling Method | ||||||||
| 1140-1180℃ | 1050-1140℃ | ≥850℃ | Pit Cooling | ||||||||
What we can offer?
We offer a wide range of steel products in a wide variety of dimensions and executions, acc.to the common international specifications or customerized.
Machining and heat treatment are available.
Also, we advise you in choosing the right materials.
Shape Available
Solid round bar
Flat bar
Square bar
Hexagon bar
Block
Plate
Sheet
Wire rod
Strip
| DIN | JIS | Stock | Application | |
Hot Work Tool Steel | H11 | 1.2343 | SKD6 | √ | Die Casting Dies,Extrusion Dies, Hammer Dies, |
H13 | 1.2344 | SKD61 | √ | ||
H10 | 1.2365 | SKD7 |
| ||
—— | 1.2367 | —— |
| ||
L6 | 1.2714 / 1.2713 | SKT4 | √ | ||
H12 | 1.2606 | SKD62 |
| ||
H21 | 1.2581 | SKD5 | √ | ||
Cold Work Tool Steel | D3 | 1.2080 | SKD1 | √ | Cutting Tools, Punching Tools, Shear Bladers, Reamers, Thread Rolling Dies, Calipers, Sockets etc. |
—— | 1.2601 | ~SKD11 | √ | ||
D2 | 1.2379 | ~SKD11 | √ | ||
—— | 1.2379 MOD | DC53 (Daido) | √ | ||
D6 | 1.2436 | —— |
| ||
O1 | 1.2510 | SKS3 | √ | ||
O2 | 1.2842 | —— |
| ||
A2 | 1.2363 | SKD12 |
| ||
S1 | 1.2550 | —— |
| ||
S7 | 1.2357 | —— |
| ||
—— | 1.2767 | SKT6 |
| ||
L2 | 1.2210 | —— |
| ||
Plastic | P20 | 1.2311 | —— | √ | Mold Base, Core & Cavity, Bumper Mold etc. |
P20+Ni | 1.2738 | —— | √ | ||
P20+S | 1.2312 | —— | √ | ||
—— | 1.2316 | —— |
| ||
420 | 1.2083 | SUS420J2 | √ | ||
—— | —— | NAK80 (Daido) | √ | ||
Alloy Steel | 4120 | 25CrMo4 / 1.7218 | SCM420 |
| Shafts, Gears, Drillers, Chains, Bolts, Nuts, Pins, Suds, Keys, Bites, Crankshafts, Connecting Rods, Came, Couplings etc. |
4135 | 34CrMo4 / 1.7220 | SCM435 |
| ||
4130 | 34CrMo4 / 1.7220 | SCM430 | √ | ||
4140 | 42CrMo4 / 42CrMoS4 / 1.7225 | SCM440 | √ | ||
4142 | 41CrMo4 / 1.7223 | SCM440 |
| ||
4145H | —— | —— |
| ||
4330V | —— | —— |
| ||
4340 | 34CrNiMo6 / 1.6582 | SNCM439 |
| ||
5115 | 16MnCr5 / 16MnCrS5 / 1.7131 |
|
| ||
5120 | 20MnCr5 / 20MnCrS5 / 1.7147 | SMnC420H |
| ||
5140 | 41Cr4 / 41CrS4 / 1.7035 | SCr440 | √ | ||
8620 | 21NiCrMo2 / 1.6523 | SNCM220 |
| ||
8640 | 40NiCrMo2-2 / 1.6546 | SNCM240 |
| ||
—— | 18CrNiMo7-6 / 17CrNiMo6 / 1.6587 | —— |
| ||
9840 | 36CrNiMo4 / 1.6511 | —— |
| ||
E71400 | 41CrAlMo7-10 / 1.8509 | SACM1 |
| ||
—— | 34CrAlNi7 / 1.8550 | —— |
| ||
Bearing Steel | E52100 | 100Cr6 / 1.3505 | SUJ2 | √ | Bearing, Shafts |
—— | 100CrMn6 / 1.3520 | —— |
| ||
—— | 100CrMo7-3 / 1.3536 | —— |
| ||
Spring Steel | 5155 | 55Cr3 / 1.7176 | SUP9 |
| Springs |
6150 | 51CrV4 / 1.8159 | SUP10 |
| ||
9261 | 60CrSi7 / 1.7108 | —— |
| ||
Carbon Steel | 1010 | CK10 / C10E / 1.1121 | S10C |
| Shafts, Chains, Bolts, Nuts, Pins, Suds, Keys, Bites, Came, Couplings etc. |
1020 | C22 / 1.0402 | S20C | √ | ||
1040 | CK40 / C40E / 1.1186 | S40C | √ | ||
1045 | CK45 / C45E / 1.1191 | S45C | √ | ||
1050 | CK50 / C50E / 1.1206 | S50C | √ | ||
1055 | CK55 / C55E / 1.1203 | S55C |
| ||
1064 | CK60 / C60E / 1.1221 | S58C |
| ||
High Speed Tool Steel | M2 | 1.3343 | SKH51 | √ | Reamer, |
M7 | 1.3348 | —— |
| ||
M42 | 1.3247 | SKH59 | √ | ||
M35 | 1.3243 | SKH55 | √ | ||
T1 | 1.3355 | SKH2 |
| ||
T15 | 1.3202 | —— |
| ||
T42 | 1.3207 | SKH57 |
|
Note:
1). √ means we have stoc
2). Delivery Condition:
Smelting: EAF+LF+VD (+ESR)
Making: Hot rolled, Cold rolled, Forged, Cold Drawn
Heat Treatment: Untreated, Annealing, N+T, Q+T
Surface: Black, Peeled, Turned, Milled, Grinded, Polished