收藏词条 编辑词条 锻制扁钢（GB/T16761-1997）
(1)尺寸规格见表1。
(2)允许偏差见表2。
表1 锻制扁钢的尺寸规格
|
宽度/mm |
厚度/mm |
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|
20 |
25 |
30 |
35 |
40 |
45 |
50 |
55 |
60 |
65 |
70 |
75 |
80 |
85 |
90 |
100 |
ll0 |
120 |
130 |
140 |
150 |
160 |
|
|
理论质量/(kg/m) |
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|
40 |
6.28 |
7.85 |
9.42 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
45 |
7.06 |
8.83 |
10.6 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
50 |
7.85 |
|
11_8 |
13.7 |
15.7 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
55 |
8.64 |
10.8 |
13.0 |
15.1 |
17.3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
60 |
9.42 |
11.8 |
14.1 |
16.5 |
18.8 |
21.1 |
23.6 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
65 |
l0.2 |
12.8 |
15.3 |
17.8 |
20.4 |
23 |
25.5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
70 |
11 |
13.7 |
16.5 |
19.2 |
22 |
24.7 |
27.5 |
30.2 |
33 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
75 |
11_8 |
14.7 |
17.7 |
20.6 |
23.6 |
26.5 |
29.4 |
32.4 |
35.3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
80 |
12.6 |
15.7 |
18.8 |
22 |
25.1 |
28.3 |
31.4 |
34.5 |
37.7 |
40.8 |
44.0 |
|
|
|
|
|
|
|
|
|
|
|
|
90 |
14.1 |
17.7 |
21.2 |
24.7 |
28.3 |
31.8 |
35.3 |
38.8 |
42.4 |
45.9 |
49.4 |
|
|
|
|
|
|
|
|
|
|
|
|
100 |
15.7 |
19.6 |
23.6 |
27.5 |
31.4 |
35.3 |
39.2 |
43.2 |
47.1 |
51.0 |
55.0 |
58.9 |
62.8 |
66.7 |
|
|
|
|
|
|
|
|
|
110 |
17.3 |
21.6 |
25.9 |
30.2 |
34.5 |
38.8 |
43.2 |
47.5 |
51.8 |
56.1 |
60.4 |
64.8 |
69.1 |
73.4 |
|
|
|
|
|
|
|
|
|
120 |
18.8 |
23.6 |
28.3 |
33 |
37.7 |
42.4 |
47.1 |
51.8 |
56.5 |
61.2 |
65.9 |
70.6 |
75.4 |
80.1 |
|
|
|
|
|
|
|
|
|
130 |
20.4 |
25.5 |
30.6 |
35.7 |
40.8 |
45.9 |
51.0 |
56.1 |
61.2 |
66.3 |
71.4 |
76.5 |
81.6 |
86.7 |
|
|
|
|
|
|
|
|
|
140 |
22.0 |
27.5 |
33.0 |
38.5 |
44.0 |
49.4 |
55 |
60.4 |
65.9 |
71.4 |
76.9 |
82.4 |
87.9 |
93.4 |
98.9 |
110 |
|
|
|
|
|
|
|
150 |
23.6 |
29.4 |
35.3 |
41.2 |
47.1 |
53.0 |
58.9 |
64.8 |
70.6 |
76.5 |
82.4 |
88.3 |
94.2 |
100 |
106 |
118 |
|
|
|
|
|
|
|
160 |
25.1 |
31.4 |
37.7 |
44 |
50.2 |
56.5 |
62.8 |
69.1 |
75.4 |
81.6 |
87.9 |
94.2 |
100 |
107 |
113 |
126 |
138 |
151 |
|
|
|
|
|
170 |
26.7 |
33.4 |
40 |
46.7 |
53.4 |
60 |
66.7 |
73.4 |
80.1 |
86.7 |
93.4 |
100 |
107 |
113 |
120 |
133 |
147 |
160 |
|
|
|
|
|
180 |
28.3 |
35.3 |
42.4 |
49.4 |
56.5 |
63.6 |
70.6 |
77.7 |
84.8 |
91.8 |
98.9 |
106 |
113 |
120 |
134 |
141 |
155 |
170 |
184 |
198 |
|
|
|
190 |
|
|
|
|
|
67.1 |
74.6 |
82 |
89.5 |
96.9 |
104 |
112 |
119 |
127 |
141 |
149 |
164 |
179 |
194 |
209 |
|
|
|
200 |
|
|
|
|
|
70.6 |
78.5 |
86.4 |
94.2 |
102 |
110 |
118 |
126 |
133 |
148 |
157 |
173 |
188 |
204 |
220 |
|
|
|
210 |
|
|
|
|
|
74.2 |
82.4 |
90.7 |
98.9 |
107 |
115 |
124 |
132 |
140 |
155 |
165 |
181 |
198 |
214 |
231 |
247 |
264 |
|
220 |
|
|
|
|
|
77.7 |
86.4 |
95.0 |
104 |
112 |
121 |
130 |
138 |
147 |
162 |
173 |
190 |
207 |
224 |
242 |
259 |
276 |
|
230 |
|
|
|
|
|
|
|
|
|
|
|
135 |
144 |
153 |
170 |
180 |
199 |
217 |
235 |
253 |
271 |
289 |
|
240 |
|
|
|
|
|
|
|
|
|
|
|
141 |
151 |
160 |
177 |
188 |
207 |
226 |
245 |
264 |
283 |
301 |
|
250 |
|
|
|
|
|
|
|
|
|
|
|
147 |
157 |
167 |
184 |
196 |
216 |
235 |
255 |
275 |
294 |
314 |
|
260 |
|
|
|
|
|
|
|
|
|
|
|
153 |
163 |
173 |
198 |
204 |
224 |
245 |
265 |
286 |
306 |
326 |
|
280 |
|
|
|
|
|
|
|
|
|
|
|
165 |
176 |
187 |
212 |
220 |
242 |
264 |
286 |
308 |
330 |
352 |
|
300 |
|
|
|
|
|
|
|
|
|
|
|
177 |
188 |
200 |
|
236 |
259 |
283 |
306 |
330 |
353 |
377 |
注：1.表中的理论质量，按密度为7.85k昏/m3计算。
2.对高合金钢计算理论质量时，要采用相应牌号的密度。
(4)硬度见表3。
表2锻制扁钢的允许偏差(mm)
|
宽 度 |
厚 度 |
|
||||
|
尺 寸 |
允许偏差 |
尺 寸 |
允许偏差 |
|
||
|
1组 |
2组 |
l组 |
2组 |
|
||
|
40～60 |
+2.0 -1.O |
+2.5 -1.O |
20～40 |
+1.5 —0.5 |
+2.O -0.5 |
|
|
>60～100 |
+3.0 -1.O |
+3.5 -1.O |
||||
|
>40～60 |
+2.O -1.O |
+2.5 -1.0 |
||||
|
>100～150 |
+4.0 -2.O |
+4.5 -2.O |
|
|||
|
>150～200 |
+6.0 -2.O |
+6.5 -2.O |
>60～100 |
+3.O -1.O |
+4.0 -1.0 |
|
|
>200～250 |
+7.O -3.O |
+8.0 -3.0 |
||||
|
>100～160 |
+4.O -1.O |
+5.O -1.O |
||||
|
>250～300 |
+9.O -3.O |
+10.0 -3.O |
|
|||
表3 锻制钢材的硬度
|
牌 号 |
退火硬度 |
试样热处理制度及淬火、回火硬度 |
|||||
|
FIBS≤ |
预热温度 |
淬火温度 |
淬火剂 |
回火温度/℃ |
硬度HRC≥ |
||
|
|
/℃ |
盐溶炉 |
箱式炉 |
||||
|
W18Ca4V |
255 |
820~870 |
1260~1275 |
1270~1285 |
油 |
550~570 |
63 |
|
W |
730~740 |
1200~1220 |
|
540~560 |
64 |
||
|
|
1210~1230 |
63 |
|||||
|
W |
820~870 |
1210~230 |
1220~1240 |
540~560 |
64 |
||
|
|
63 |
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