Product Overview
HAIHAO GOST elbows are manufactured in strict compliance with GOST 17375 and GOST 30753 standards, offering a full range of sizes from DN15 to DN1000 (outer diameter 21.3–1016mm) with wall thicknesses of 2–60mm to meet various pressure class requirements. The product range includes 45°, 90° and 180° elbow angles, with bending radii options of 1.0D, 2D, 3D and 5D, all featuring butt-weld (BW) connections for reliable piping system integration. Materials cover carbon steel, stainless steel and alloy steel categories, suitable for diverse media and operating conditions. With a monthly supply capacity of 1000 tons and a factory-direct supply model, we offer customers competitive pricing advantages.
Specifications and Dimensions
GOST 17375-2001 ELBOWS
TYPE 3D (R=1.5D)
|
DN |
D |
T |
F=R |
H |
C |
B |
Macca (kg) |
||
|
45° |
90° |
180° |
|||||||
|
15 |
21.3 |
2 |
28 |
14 |
56 |
38 |
0.02 |
0.04 |
0.08 |
|
3.2 |
0.03 |
0.06 |
0.12 |
||||||
|
4 |
0.04 |
0.07 |
0.14 |
||||||
|
20 |
26.9 |
2 |
29 |
14 |
58 |
43 |
0.03 |
0.06 |
0.11 |
|
3.2 |
0.04 |
0.08 |
0.17 |
||||||
|
4 |
0.06 |
0.10 |
0.20 |
||||||
|
25 |
33.7 |
2.3 |
38 |
18 |
76 |
56 |
0.05 |
0.11 |
0.21 |
|
3.2 |
0.08 |
0.16 |
0.32 |
||||||
|
4.5 |
0.09 |
0.19 |
0.38 |
||||||
|
32 |
42.4 |
2.6 |
48 |
23 |
96 |
69 |
0.1 |
0.19 |
0.39 |
|
3.6 |
0.13 |
0.26 |
0.52 |
||||||
|
5 |
0.17 |
0.35 |
0.60 |
||||||
|
40 |
48.3 |
2.6 |
57 |
29 |
114 |
82 |
0.13 |
0.26 |
0.53 |
|
3.6 |
0.18 |
0.36 |
0.72 |
||||||
|
5 |
0.24 |
0.47 |
0.95 |
||||||
|
50 |
60.3 |
2.9 |
76 |
35 |
152 |
106 |
0.25 |
0.5 |
0.99 |
|
4 |
0.33 |
0.67 |
1.3 |
||||||
|
5.6 |
0.50 |
0.89 |
1.8 |
||||||
|
65 |
76.1 |
2.9 |
95 |
44 |
190 |
133 |
0.4 |
0.79 |
1.6 |
|
5 |
0.72 |
1.5 |
2.9 |
||||||
|
7.1 |
0.9 |
1.8 |
3.6 |
||||||
|
80 |
88.9 |
3.2 |
114 |
51 |
228 |
159 |
0.6 |
1.2 |
2.4 |
|
5.6 |
1 |
2.1 |
4.1 |
||||||
|
8 |
1.4 |
2.8 |
5.7 |
||||||
|
100 |
114.3 |
3.6 |
152 |
64 |
304 |
210 |
1.2 |
2.4 |
4.7 |
|
6.3 |
2 |
4 |
8 |
||||||
|
8.8 |
2.8 |
5.4 |
11 |
||||||
|
125 |
139.7 |
4 |
190 |
79 |
380 |
260 |
2 |
4 |
8 |
|
6.3 |
3.1 |
6.2 |
12 |
||||||
|
10 |
4.8 |
9.6 |
19 |
||||||
|
150 |
168.3 |
4.5 |
229 |
95 |
457 |
313 |
3.2 |
6.5 |
13 |
|
7.1 |
5.1 |
10 |
20 |
||||||
|
11 |
7.7 |
15 |
31 |
||||||
|
200 |
219.1 |
6.3 |
305 |
127 |
610 |
414 |
8 |
16 |
32 |
|
8 |
9.9 |
20 |
40 |
||||||
|
12.5 |
14 |
31 |
61 |
||||||
|
250 |
273 |
6.3 |
381 |
159 |
762 |
518 |
12 |
25 |
50 |
|
10 |
19 |
39 |
78 |
||||||
|
300 |
323.9 |
7.1 |
457 |
190 |
914 |
619 |
20 |
40 |
80 |
|
10 |
28 |
56 |
111 |
||||||
|
350 |
355.6 |
8 |
533 |
222 |
1066 |
711 |
24 |
57 |
114 |
|
11 |
39 |
78 |
156 |
||||||
|
400 |
406.4 |
8.8 |
610 |
254 |
1220 |
813 |
41 |
82 |
165 |
|
12.5 |
58 |
117 |
234 |
||||||
|
450 |
457 |
10 |
686 |
286 |
1372 |
914 |
59 |
119 |
237 |
|
500 |
508 |
11 |
762 |
318 |
1524 |
1016 |
81 |
162 |
323 |
|
600 |
610 |
12.5 |
914 |
381 |
1828 |
1219 |
133 |
266 |
531 |
|
700 |
711 |
-- |
1067 |
444 |
2134 |
1422 |
-- |
-- |
-- |
|
800 |
813 |
-- |
1219 |
507 |
2238 |
-- |
-- |
-- |
-- |
|
900 |
914 |
-- |
1372 |
570 |
2744 |
-- |
-- |
-- |
-- |
|
1000 |
1016 |
-- |
1524 |
634 |
3048 |
-- |
-- |
-- |
-- |
Materials and Mechanical Properties
Material selection based on operational requirements:
|
Material Type |
Grade |
Tensile Strength |
Temperature Rating |
|
Carbon Steel |
CT20, ST35.8, ST37.2 |
360–530 MPa |
–40°C to 400°C |
|
Stainless Steel |
12Х18Н10Т (304H), 08X17H13M2T |
- |
Corrosive environments |
|
Alloy Steel |
15XM, 10Cr9Mo1VNbN (P91), WB36 |
- |
Up to 550°C |
Applications
- ● Pipeline systems (oil and gas transmission)
- ● Refineries and petrochemical plants
- ● Thermal and nuclear power stations
- ● District heating networks and boiler houses
- ● Gas processing facilities
- ● Shipbuilding and offshore platforms
Testing and Quality Assurance
- Product manufacturing and inspection comply with GOST 17375
- Mill Test Reports (MTR) available upon request to verify chemical composition and mechanical properties conform to specified material grades
- Ultrasonic testing (UT) , magnetic particle testing (MT) , and hydrostatic pressure testing can be arranged upon customer request, with corresponding reports provided
- Certificate of compliance issued with each shipment
FAQ
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