材料：ST 52,20钢，45钢，及其它
内径：40 - 300mm,
最大长度：16m
直线度: 0.5 /1000
外径公差: ISO f7
内径公差: ISO H8
表面粗糙度(Ra): 0.2 - 0.4µ
镀层厚度: 20 - 50 微米
生产工艺：冷拔，去应力，珩磨，电镀。
化学成分 (%)
|
Si (Max) |
Mn (Max) |
C (Max) |
P (Max.) |
S (Max) |
|
0.55 |
1.60 |
0.22 |
0.025 |
0.025 |
机械性能
|
抗拉强度 Min |
屈服强度 Min |
延伸率 % Min |
|
580 N/mm2 |
420 N/mm2 |
10 |
内径公差标准:
|
内径(mm) |
公差(mm) |
|||
|
H7 |
H8 |
H9 |
H10 |
|
|
≦30 |
+0.021/0 |
+0.033/0 |
+0.052/0 |
+0.084/0 |
|
30 - ≦50 |
+0.025/0 |
+0.039/0 |
+0.062/0 |
+0.100/0 |
|
50 - ≦80 |
+0.030/0 |
+0.046/0 |
+0.074/0 |
+0.120/0 |
|
80 - ≦120 |
+0.035/0 |
+0.054/0 |
+0.087/0 |
+0.140/0 |
|
120 - ≦180 |
+0.040/0 |
+0.063/0 |
+0.100/0 |
+0.160/0 |
|
180 - ≦250 |
+0.046/0 |
+0.072/0 |
+0.115/0 |
+0.185/0 |
|
250 - ≦315 |
+0.052/0 |
+0.081/0 |
+0.130/0 |
+0.210/0 |
|
315 - ≦700 |
+0.057/0 |
+0.089/0 |
+0.140/0 |
+0.230/0 |
