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Contact Us  |
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Haiyan Fengyue Fasteners CO., Ltd.
Address: Fengyi Village, Tongyuan
Town, Haiyan , China
Tel: +86 573 8605 9107
+86 573 8605 9207
Fax: +86 573 8605 9307
Email: sales@fy-fastener.com
info@fy-fastener.com
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HIGH TENSILE BOLTS ASTM A325, ASTM A325 |
Current Location：Home -> Products |
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heavy hex bolt ASTM A325M
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Structural bolts ASTM A325M -09
Introductions:
1) The Dimension of Bolts comply to ANSI/ASME B 18.2.3.7M Metric Heavy Hex Structural Bolts.
2) Thread comply to ANSI B1.13M -6g coarse series
3) Material: Medium Carbon Steel( C1035) /Alloy Steel (40Cr).
4) Head Marking of bolts: FY A325M 8S
5) HEAT TREATMENT: Heat Treated to ASTM A 325M Type-1
Dimension of ANSI/ASME B 18.2.3.7M Metric Series (UNIT : mm)
|
SIZE |
THREAD PITCH |
BODY DAI. ΦD |
WIDTH ACROSS FLATS S |
HEAD HEIGHT K |
RADIUS of FILLET R |
WASHER FACE DIAMETER Wo |
WASHER FACE HEIGHT C |
THREAD LENGTH B |
|
min. |
max. |
min. |
max. |
min. |
max. |
min. |
min. |
min. |
max. |
bolt lengths ≥ 100 |
bolt lengths ＜ 100 |
|
M12 |
1.75 |
11.30 |
12.70 |
20.16 |
21.00 |
7.24 |
7.95 |
0.60 |
19.20 |
0.40 |
0.80 |
26 |
33 |
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M16 |
2.00 |
15.30 |
16.70 |
26.16 |
27.00 |
9.25 |
10.75 |
0.60 |
24.90 |
0.40 |
0.80 |
31 |
38 |
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M20 |
2.50 |
19.16 |
20.84 |
33.00 |
34.00 |
11.60 |
13.40 |
0.80 |
31.40 |
0.40 |
0.80 |
36 |
43 |
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M22 |
2.50 |
21.16 |
22.84 |
35.00 |
36.00 |
13.10 |
14.90 |
0.80 |
33.30 |
0.40 |
0.80 |
38 |
45 |
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M24 |
3.00 |
23.16 |
24.84 |
40.00 |
41.00 |
14.10 |
15.90 |
1.00 |
38.00 |
0.40 |
0.80 |
41 |
48 |
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M27 |
3.00 |
26.16 |
27.84 |
45.00 |
46.00 |
16.10 |
17.90 |
1.20 |
42.80 |
0.40 |
0.80 |
44 |
51 |
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M30 |
3.50 |
29.16 |
30.84 |
49.00 |
50.00 |
17.65 |
19.75 |
1.20 |
46.50 |
0.40 |
0.80 |
49 |
56 |
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M36 |
4.00 |
35.00 |
37.00 |
58.80 |
60.00 |
21.45 |
23.55 |
1.50 |
55.90 |
0.40 |
0.80 |
56 |
63 |
Mechanical Properties: ASTM A325M -09 Heavy hex Structural Bolts
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Mechanical Properties |
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Type 1 |
Type 1 |
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Nominal Thread Size |
M12 to M24 |
M25 to M36 |
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Tensile Strength (Min.) |
(N/mm2) |
830 |
830 |
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Yield Strength (Min.) |
(N/mm2) |
660 |
660 |
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Proof Load Stress (Min.) |
(N/mm2) |
600 |
600 |
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Elongation A (Min.) |
[%] |
12 |
12 |
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Reduction of Area (Min.) |
[%] |
35 |
35 |
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Hardness |
HRC |
L<2D HRC 25-34 |
L<2D HRC 25-34 |
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l≥2D HRC 34 MAX |
l≥2D HRC 34 MAX |
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Rotational Capacity Test for Zinc Coated Bolts |
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Nominal Bolt length ,mm |
Nut rotation degree (Tum), min |
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2D and Shorter |
180 |
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Over 2D to 3D Incl. |
240 |
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Over 3D to 4D Incl. |
300 |
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Over 4D to 8D Incl. |
360 |
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Over 8D |
420 |
| Recommended Tightening Torques and Induced Loads |
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Thread Size and Pitch |
Stress Area |
Un-lubricated
Finish |
Induced Load |
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MM2 |
Nm |
KN |
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M12X1.75 |
84.3 |
93.47 |
38.9 |
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M16X2.00 |
157 |
232-11 |
72.534 |
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M20X2.50 |
245 |
452.76 |
112.19 |
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M22X2.50 |
303 |
615.94 |
139.99 |
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M24X3.00 |
353 |
782.81 |
163.09 |
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M27X3.00 |
459 |
1,145.11 |
212.06 |
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M30X3.50 |
561 |
1,555.10 |
259.18 |
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M36X4.00 |
817 |
2,717.67 |
377.45 | |
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