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Good quality comes initial; service is foremost; company is cooperation” is our business enterprise philosophy which is constantly observed and pursued by our organization for Ground Surface Molybdenum Rod, Molybdenum Mola Tzm Alloy Round Bar, Pure Molybdenum Bar/rod/electrode, We can meet the various needs of customers at home and abroad. We welcome new and old customers to come to consult & negotiate with us. Your satisfaction is our motivation! Let us work together to write a brilliant new chapter!
Molybdenum rods Chemical composition:
| Main and minor components | Min.content(%) | ASTM B386 (361) |
| Mo | 99.95 | balance |
| Impurities | Max.values (μg/g) | Max.values (μg/g) |
| Al | 10 | - |
| Cu | 20 | - |
| Cr | 20 | - |
| Fe | 20 | 100 |
| K | 20 | - |
| Ni | 10 | 50 |
| Si | 20 | 100 |
| W | 300 | - |
| C | 30 | 100 |
| H | 10 | 20 |
| N | 10 | 70 |
| O | 40 | - |
| Cd | 5 | - |
| Hg | 1 | - |
| Pb | 5 | - |
Dimensions and tolerances:
| Diameter (mm) | Diameter tolerance (mm) |
| Ground | |
| 0.50-0.99 | ±0.007 |
| 1.00-1.99 | ±0.010 |
| 1.00-2.99 | ±0.015 |
| 3.00-15.9 | ±0.020 |
| 16.0-24.9 | ±0.030 |
| 25.0-34.9 | ±0.050 |
| 35.0-3939 | ±0.060 |
| ≥40.0 | ±0.20 |
| Cleaned | |
| 0.50-4.0 | ±2.0% |
| 4.10-10.0 | ±1.5% |
| 15.0-50.0 | ±0.30 |
| 51.0-75.0 | ±0.40 |
| 75.1-120.0 | ±1.00 |
| 121.0-165.0 | ±1.50 |
| Turned | |
| 40.0-49.9 | ±0.30 |
| 50.0-165.0 | ±0.40 |
Length and straightness:
| Diameter (mm) | Production length (mm) | Stiraightness/Meter (mm) | |
| Cleaned | Ground/turned | ||
| 0.50-0.99 | ＞500 | ＜2.5 | ＜2.5 |
| 1.00-9.90 | ＞300 | ＜2.0 | ＜1.5 |
| 10.0-165.0 | ＞100 | ＜1.5 | ＜1.0 |
Length tolerance:
| Diameter 0.50-30.0 mm | ||||||
| Nominal length (mm) | 6-30 | 30-120 | 120-400 | 400-1000 | 1000-2000 | ＞2000 |
| Length tolerance(mm) | ±0.2 | ±0.3 | ±0.5 | ±0.8 | ±1.2 | ±2.0 |
| Diameter ＞30.0 mm | ||||||
| Nominal length (mm) | 6-30 | 30-120 | 120-400 | 400-1000 | 1000-2000 | ＞2000 |
| Length tolerance(mm) | ±1.0 | ±1.5 | ±2.5 | ±4.0 | ±6.0 | ±8.0 |
Density:
1. 00.50-40.0 mm ≥10.15g/cm³
2. 40.1-80.0 mm ≥10.10g/cm³
3. 80.1-120.0 mm ≥10.00g/cm³
4. 120.1-165.0 mm ≥9.90g/cm³
Nondestructive testing: For diameters＞15.00 mm:100% ultrasonic testing; For diameters of 0.50-50.0mm:Eddy curent tests on rods with ground surface.
| Diameter(mm) | Tensile strength(MPa) | 0.2% Yield Strength(MPa) | Elongation(%) | Hardness(HV 10) |
| 0.50-3.18 | ≥585 | ≥450 | ≥15 | |
| 3.18-10.30 | ≥515 | ≥380 | ≥15 | |
| 10.32-22.20 | ≥620 | ≥515 | ≥18 | 230-280 |
| 22.20-28.60 | ≥585 | ≥480 | ≥15 | 225-270 |
| 28.60-47.60 | ≥515 | ≥450 | ≥10 | 215-260 |
| 47.60-73.00 | ≥480 | ≥415 | ≥10 | 210-250 |
| 73.00-88.90 | ≥450 | ≥380 | ≥10 | 205-240 |
| 89.00-120.9 | ≥450 | ≥380 | ≥5 | 200-240 |
| 121.0-164.9 | ≥450 | ≥380 | ≥5 | 180-240 |
| 165.0 | ≥450 | ≥380 | ≥- | 180-240 |
Surface condition:
| Surface： | Cleaned | Ground | Turned |
| φ0.50-165mm | φ0.50-50.00mm | φ≥40.00mm | |
| Roughness | Diameter (mm) | Ra (μm) Ground | Ra (μm) Turned |
| ≤2.50 | ≤0.80 | - | |
| 2.5-50.0 | ≤1.00 | - | |
| ≥40.0 | - | ≤3.2 |