An ideal material for a fishing sinker is environmentally acceptable, cheap and dense.In ancient times as well as sometimes today, fishing sinkers consisted lead. However,lead is known to cause lead poisoning and enter the environment as a result of the inevitable occasional loss of fishing sinkers during routine fishing.Thus, most lead-based fishing sinkers have been outlawed in the United Kingdom, Canada, and some states in the United States. Lead based fishing sinkers are banned in all of US and Canadian National Parks.
Now, Say "No" to poisoning sinker!!!
According to customers requiring, we have already produced a lots type of tungsten alloy fishing sinker and fishing weights.Weight range from 1/64oz to 1oz, and with different shape: water-drap shape finshing sinker,bullet shape sinker.wase shape fishing sinker.petal shape tungsten sinker,leaf shape tungsten weight,spiked tungsten fishing sinker.arrowhead fishing weight.steepletop fishing sinker.tungsten ball with slots. tungsten beads in different color and so on.here below we show some of them in pictures:
| ASTM-B-777-87 | Class 1 | Class 2 | Class 3 | Class 4 |
| Miniumum Density(g/cc) | 16.85 | 17.15 | 17.75 | 18.25 |
| Minimum Density (lbs/in3) | 0.608 | 0.619 | 0.641 | 0.659 |
| Nominal W Content (wt.%) | 90 | 92.5 | 95 | 97 |
| Nominal Nickel Content (wt.%) | 7.1 | 5.4 | 3.6 | 2.1 |
| Nominal Iron Content (wt.%) | 2.9 | 2.1 | 1.4 | 0.9 |
| Typical Hardness (HRC) | 28 | 28 | 29 | 30 |
| Modulus of Elasticity (x106 psi) | 45 | 48 | 50 | 52 |
| Ultimate Tensile Strength Min. (ksi) | 120 | 120 | 120 | 110 |
| 0.2% Offset Yield Strength Min (ksi) | 80 | 80 | 80 | 80 |
| Minimum % Elongation (1" Gauge Length) | 10 | 8 | 6 | 2 |
