CW-1
CW-1Grade Introduction:
The high-quality USA AISI CW-1 material is one of the more steel grades we supply, W-Ta-Nb-Ti-Co class carbide. CW-1 is our main production grade, which has been approved by customers in many countries since its initial production, including our CW-1 round bars, flat bar, forgings, fasteners, tubes, wires, strips, sheets & Plates, as well as a variety of profiles, professional high precision auto-lathe processing manufacturer of clinching fasteners, axes, standoffs, screws, studs, nuts, bolt, OEM parts and special-shaped turning parts the state of delivery includes quenched and tempered, annealed, machined semi-finished products, we also have strict management of the packaging, to avoid material damage from transportation. We are the best supplier of CW-1 materials, and we are willing to develop together with customers from all over the world.
CW-1 Grade Application:
- Plastic injection molds and inserts
- Plastic injection and extrusion feed screws
- Non-return valve components
- Pelletizing equipment
- Nozzles
- Gate and nozzle inserts.
- Industrial knives, slitters, and cutters.
- Gear pumps.
- Bearings, bushings, valves, rolls.
CW-1 Equivalent Grades:
| Material |
Standard |
Country |
| CW-12MW |
AISI |
USA |
CW-1 Chemical Composition:
| Element |
Content (%) |
| C≤ |
6.7 |
| Si≤ |
– |
| Mn≤ |
– |
| P≤ |
– |
| S≤ |
– |
| Cr≤ |
– |
| Ni≤ |
– |
| Mo |
– |
| AI |
– |
| W |
68.9 |
| Nb |
1.6 |
| Ti |
6.7 |
| V |
– |
| Ta |
5.4 |
| N |
– |
| Co |
– |
| Pb |
– |
| B |
10.7 |
| Other |
– |
Mechanical Properties:
| Property |
Value |
T (°C) |
Treatment |
| Density (×1000 kg/m3) |
7.7-8.03 |
25 |
– |
| Poisson’s Ratio |
0.27-0.30 |
25 |
– |
| Elastic Modulus (GPa) |
190-210 |
25 |
– |
| Tensile Strength (MPa) |
1158 |
25 |
oil quenched, fine grained, tempered at 425°C |
| Yield Strength (MPa) |
1034 |
– |
– |
| Elongation (%) |
15 |
– |
– |
| Reduction in Area (%) |
53 |
– |
– |
| Hardness (HB) |
335 |
25 |
oil quenched, fine grained, tempered at 425°C |
Physical Properties:
| Quantity |
Value |
Unit |
| Thermal expansion |
16 – 17 |
e-6/K |
| Thermal conductivity |
16 – 16 |
W/m.K |
| Specific heat |
500 – 500 |
J/kg.K |
| Melting temperature |
1370 – 1400 |
°C |
| Service temperature |
0 – 500 |
°C |
| Density |
8000 – 8000 |
kg/m³ |
| Resistivity |
0.7 – 0.7 |
Ohm.mm²/m |
Thermal Properties:
| Properties |
value |
unit |
T (°C) |
| Thermal Conductivity |
42.7 |
W/m-K |
100 |
| Specific Heat |
477 |
J/kg-K |
50-100 |
Forging Properties:
Heat slowly to 2000/2100°F (1093/1149°C). Do not work below 1700°F (927°C). Reheat as necessary. Cool forgings slowly and anneal immediately upon cooling.
Stress Relieving:
Annealed Parts: Heat to 1100-1300°F (593-705°C), hold 2 hours, then furnace cool or cool in still air.
Hardened Parts: Heat to 25-50°F (15-30°C) below original tempering temperature, hold 2 hours, then furnace cool or cool in still air.