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名称：钨棒、钨杆、钨合金棒、钨合金杆
1) 牌号：W1，W2
2) 执行标准：
GB/T4187-84
GB/T4186-84
3) 用途：用于电子、电光源、电真空等行业、钨发热体等。
4) 钨棒材、杆材牌号、状态和规格见下表：
|
牌号 |
加工方法 |
直径d(mm) |
直径允许公差(mm) |
品种 |
|||
|
烧结 |
锻造 (黑钼杆) |
矫直 (黑钼杆) |
经磨削或机加 |
||||
|
W1 W2 |
烧结 磨光 车光 冷旋锻 锻造 |
0.8≤d＜3.0 |
— |
— |
±2% |
±0.03 |
钨杆 |
|
3.0≤d＜6.5 |
— |
±2% |
±0.05 |
||||
|
6.5≤d＜11.0 |
— |
±0.08 |
|||||
|
11≤d＜16 |
— |
±1.0 |
±1.0 |
±0.2 |
钨棒 |
||
|
16≤d＜25 |
— |
±1.0 |
±1.0 |
±0.2 |
|||
|
25≤d＜45 |
±5 |
±1.5 |
±1.5 |
±0.3 |
|||
|
45≤d＜55 |
±5 |
±2.0 |
±2.0 |
±0.5 |
|||
|
55≤d＜60 |
±5 |
±2.5 |
±2.5 |
±0.8 |
|||
|
60≤d＜70 |
±5 |
±3.0 |
±3.0 |
±0.8 |
|||
|
70≤d＜75 |
±8 |
±3.5 |
±3.5 |
±1.0 |
|||
|
75≤d＜85 |
±8 |
±4.0 |
±4.0 |
±1.5 |
|||
|
85≤d＜90 |
±8 |
±4.5 |
±4.5 |
±1.5 |
|||
|
90≤d＜100 |
±8 |
±4.5 |
±4.5 |
±1.5 |
|||
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