General-purpose round-link chains
Strength class 3 · ТУ 25.93.17-001-06515248-2020. Welded round-link chains made of round bar: short-link (A) and long-link (B), calibrated and non-calibrated, coating — none or electrogalvanised zinc.
Full TU name: General-purpose welded chains made of round bar. Technical specifications. TU 25.93.17-001-06515248-2020. They cover general-purpose welded chains made of round bar — round-link load and traction chains with a tensile strength of at least 300 MPa — intended for use in various fields of technology.
Sizes · 45 items
| B2-3-2,8x35x15,6 | B2 | 2,8 | 35 | 15,6 | 1,9 | 3,7 | 0,15 |
| B2-3-3x16x11 | B2 | 3 | 16 | 11 | 2,1 | 4,2 | 0,17 |
| B2-3-3x26x11 | B2 | 3 | 26 | 11 | 2,1 | 4,2 | 0,14 |
| B2-3-3,4x17,5x13 | B2 | 3,4 | 17,5 | 13 | 2,8 | 5,5 | 0,22 |
| B2-3-3,8x19x15 | B2 | 3,8 | 19 | 15 | 3,4 | 6,8 | 0,28 |
| B2-3-4x28x16 | B2 | 4 | 28 | 16 | 3,8 | 7,5 | 0,28 |
| B2-3-4x32x15,2 | B2 | 4 | 32 | 15,2 | 3,8 | 7,5 | 0,24 |
| B2-3-4x40x15,2 | B2 | 4 | 40 | 15,2 | 3,8 | 7,5 | 0,22 |
| B1-3-5x26x17,5 | B1 | 5 | 26 | 17,5 | 5,9 | 11,8 | 0,46 |
| B2-3-5x19x18,5 | B2 | 5 | 19 | 18,5 | 5,9 | 11,8 | 0,56 |
| B2-3-5x21x19 | B2 | 5 | 21 | 19 | 5,9 | 11,8 | 0,5 |
| B2-3-5x26x18,5 | B2 | 5 | 26 | 18,5 | 5,9 | 11,8 | 0,46 |
| B2-3-5x28x20 | B2 | 5 | 28 | 20 | 5,9 | 11,8 | 0,46 |
| B2-3-5x36x19 | B2 | 5 | 36 | 19 | 5,9 | 11,8 | 0,42 |
| A1-3-6x19x21 | A1 | 6 | 19 | 21 | 8,5 | 17 | 0,78 |
| A2-3-6x18x20 | A2 | 6 | 18 | 20 | 8,5 | 17 | 0,79 |
| A2-3-6x19x20 | A2 | 6 | 19 | 20 | 8,5 | 17 | 0,77 |
| B1-3-6x27x22 | B1 | 6 | 27 | 22 | 8,5 | 17 | 0,69 |
| B2-3-6x24x22 | B2 | 6 | 24 | 22 | 8,5 | 17 | 0,72 |
| B2-3-6x27x22 | B2 | 6 | 27 | 22 | 8,5 | 17 | 0,69 |
| B2-3-6x36x23 | B2 | 6 | 36 | 23 | 8,5 | 17 | 0,64 |
| B2-3-6x42x22,8 | B2 | 6 | 42 | 22,8 | 8,5 | 17 | 0,62 |
| A1-3-7x22x23 | A1 | 7 | 22 | 23 | 11,5 | 23 | 1,15 |
| B2-3-7x43x26 | B2 | 7 | 43 | 26 | 11,5 | 23 | 0,89 |
| B2-3-7x48x26,6 | B2 | 7 | 48 | 26,6 | 11,5 | 23 | 0,84 |
| B2-3-7,6x30x27,4 | B2 | 7,6 | 30 | 27,4 | 13,5 | 27 | 1,17 |
| A1-3-8x24x26 | A1 | 8 | 24 | 26 | 15 | 30 | 1,45 |
| B2-3-8x34x30,5 | B2 | 8 | 34 | 30,5 | 15 | 30 | 1,24 |
| B2-3-8x42x30 | B2 | 8 | 42 | 30 | 15 | 30 | 1,13 |
| B2-3-8x48x30 | B2 | 8 | 48 | 30 | 15 | 30 | 1,1 |
| A1-3-9x27x32 | A1 | 9 | 27 | 32 | 19 | 38 | 1,77 |
| B2-3-9x36x32 | B2 | 9 | 36 | 32 | 19 | 38 | 1,65 |
| B2-3-9x45x32 | B2 | 9 | 45 | 32 | 19 | 38 | 1,44 |
| A1-3-10x28x34 | A1 | 10 | 28 | 34 | 23,5 | 47 | 2,12 |
| A2-3-10x30x35,6 | A2 | 10 | 30 | 35,6 | 23,5 | 47 | 2,14 |
| B2-3-10x35x35,6 | B2 | 10 | 35 | 35,6 | 23,5 | 47 | 2,05 |
| B2-3-10x40x35,6 | B2 | 10 | 40 | 35,6 | 23,5 | 47 | 2 |
| B2-3-10x60x35,6 | B2 | 10 | 60 | 35,6 | 23,5 | 47 | 1,8 |
| A1-3-11x31x36 | A1 | 11 | 31 | 36 | 28,5 | 57 | 2,6 |
| A2-3-11x33x42 | A2 | 11 | 33 | 42 | 28,5 | 57 | 2,7 |
| B2-3-11x42x42 | B2 | 11 | 42 | 42 | 28,5 | 57 | 2,48 |
| A1-3-13x36x44 | A1 | 13 | 36 | 44 | 40 | 80 | 3,83 |
| A2-3-13x45x53 | A2 | 13 | 45 | 53 | 40 | 80 | 3,5 |
| A1-3-16x44x53 | A1 | 16 | 44 | 53 | 60 | 120 | 5,8 |
| A2-3-16x48x52 | A2 | 16 | 48 | 52 | 60 | 120 | 5,6 |
We provide prices and quotations after clarifying the request. Message a manager.
Replacement/analogue (size-for-size equivalent) for the following TUs:
- ТУ 25.93.17-001-26518198-2016 — Цепи из круглого проката сварные общего назначения. Технические условия
The size range and load ratings match the current TU ТУ 25.93.17-001-06515248-2020, to which we manufacture our products today. If your documentation (design documents) specifies the previous TU number, we will provide confirmation of technical equivalence.
Frequently asked questions
How do groups A1, A2, B1 and B2 differ?
The first letter is the link type: A — short-link, B — long-link; the digit is the calibration: 1 — calibrated, 2 — non-calibrated. A calibrated chain holds the link pitch more precisely — this matters for mechanisms and operation with a sprocket; for suspensions, fencing and securing cargo a non-calibrated chain is sufficient. The choice of group for a task is confirmed by a technologist.
To which TU are the chains in this section manufactured?
General-purpose class 3 chains are manufactured to our TU 25.93.17-001-06515248-2020. The range includes short-link and long-link, calibrated and non-calibrated versions. DIN 763, DIN 766 and GOST 2319-81 are used as reference standards for comparison; the final conformity for the specific size and task is confirmed by a technologist.
How do I read a chain designation, for example A1-3-6×19×21?
The designation follows the scheme “type — class — gauge × pitch × width”: A1 — short-link calibrated, 3 — strength class, 6×19×21 — gauge 6 mm, pitch 19 mm and outer link width 21 mm. The gauge is the rod diameter, the pitch is the internal length of the link. If the designation is unknown, the size is determined from four measurements: gauge, pitch, width and weight per metre.
Can you manufacture the products if the engineering documentation specifies the previous TU 25.93.17-001-26518198-2016?
Yes. The products of our general-purpose line are equivalent to the previous TU 25.93.17-001-26518198-2016 in size range and load norms; we currently manufacture to the current TU 25.93.17-001-06515248-2020. If the engineering documentation specifies the previous number, we will provide a confirmation of technical equivalence on delivery.