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Ціни на сталь · Лондонська біржа металів
Questions & Answers
|
Reinforcing steel grades |
Profile diameter, mm |
Rebar steel grade |
|
A-I (А240) smooth |
6-40 |
St3kp, St3ps, St3sp |
|
A-II (А300) grooved |
10-40 |
St5sp, St5ps |
|
Ас-II (Ас300) grooved |
10-32 |
10GT |
|
A-III (A400) grooved |
6-40 |
35GS, 25G2S |
|
A-IV (A600) grooved |
10-32 |
80S |
|
A-V (А800) grooved |
(6-8) |
23X2G2T |
|
А-VI (А1000) grooved |
10-22 |
22Х2G2AU, 22Х2G2Р, 20Х2G2СР |
The main grades used for rebar are:
Carbon steels: St3 (St3kp, St3ps, St3sp), St0, St5;
Low-alloy steels: 10G2S1, 15GS, 20G2R, 25G2S, 35GS, 22G2S, 28S;
Grades for thermomechanically hardened rebar: At1000, At600, At400, At1200, At500, At800;
The most popular rebar grades are: A300, A1000, A800, A400 (often 35GS, 25G2S), A500 (A500C), A600, A240 (smooth rebar, usually St3).
Standards for steel reinforcement vary by country. The main standards used for reinforcement are:
Ukraine (DSTU)
DSTU B V.2.6-156:2010 — Reinforcement with ribbed sections;
DSTU 3760:2019 — Reinforcing bars for reinforced concrete structures.
Europe (EN)
EN 1992-1-1 (Eurocode 2) — Design of reinforced concrete structures;
EN 13670 — Execution of concrete structures;
EN 10080 — Steel for the reinforcement of concrete.
International (ISO)
ISO 15630 — Test methods for reinforcement;
ISO 6935-1 — Plain reinforcement;
ISO 6935-2 — Ribbed reinforcement.
|
D, мм |
Weight of 1 meter of reinforcement, kg |
Meters per ton |
Weight deviations in % |
| 6 | 0,222 | 4504,5 |
+9,0 -7,0 |
| 8 | 0,395 | 2531,65 | +9,0 -7,0 |
| 10 | 0,617 | 1620,75 | +5,0 -6,0 |
| 12 | 0,888 | 1126,13 | +5,0 -6,0 |
| 14 | 1,21 | 826,45 | +5,0 -6,0 |
| 16 | 1,58 | 632,91 | +3,0 -5,0 |
| 18 | 2 | 500 | +3,0 -5,0 |
| 20 | 2,47 | 404,86 | +3,0 -5,0 |
| 22 | 2,98 | 335,57 | +3,0 -5,0 |
| 25 | 3,85 | 259,74 | +3,0 -5,0 |
| 28 | 4,83 | 207,04 | +3,0 -5,0 |
| 32 | 6,31 | 158,48 | +3,0 -4,0 |
| 36 | 7,99 | 125,16 | +3,0 -4,0 |
| 40 | 9,87 | 101,32 | -+3,0 -4,0 |
| 45 | 12,48 | 80,13 | +3,0 -4,0 |
| 50 | 15,41 | 64,89 | +2,0 -4,0 |
| 55 | 18,65 | 53,62 | +2,0 -4,0 |
| 60 | 22,19 | 45,07 | +2,0 -4,0 |
| 70 | 30,21 | 33,1 | +2,0 -4,0 |