Low alloy structural steel for welded GOST
Are you interested in low-alloy structural steel GOST? Supplier Avlob offers to buy low-alloy structural steel at a bargain price. The supplier guarantees the timely delivery of products to any address in Europe or abroad. Regular customers receive a discount discount. The price is the best in this segment.
Technical specifications
| GOST | Technical requirements are normalized |
| 5058−85. | Composition and properties of low-alloyed low-carbon steels |
| 2590−71, 2591−71, 5681−57, 82−70, 8239−72, 8240−72, 8509−72 | Form, size, tolerances, surface condition and assortment of profile shapes, group A |
| 535−58, 500−58 | Surface quality. |
| GOST 5781−61, 10884−71. | Form, size, tolerances, surface condition and assortment of shaped profiles, group B |
Rolling is delivered without heat treatment or in a heat-treated condition. Supplier Avlob offers to buy low-alloy structural steel at a bargain price. The price is the best in this segment of rental.
Mechanical properties (temperature 20 ° C)
| Steel grades | Rolled thickness in mm | Mechanical properties | Cold Bending Test: c is the thickness of the mandrel; a is the thickness of the rolled product; d is the diameter of the rod | |||||
| when stretched | Impact strength аn in kgfm / cm2 | |||||||
| Temporary resistance to rupture sv in kgf / mm2 | Yield strength sт in kgs / mm2 | Relative elongation δ5 in% | at | |||||
| +20 ºС | -40 ºС | -70 ºС | ||||||
| not less than | ||||||||
| A. Steel for metal structures | ||||||||
| 14D | 4 — 10 | 46 | 29 | 21 | - | 3.5 | - | 180 ° c = 2a |
| 19G | 4 — 10 | 48 | 32 | 22 | - | 3.5 | - | 180 ° c = 2a |
| 09G2 | 4 — 20 | 45 | 31 | 21 | - | 3.0 | - | 180 ° c = 2a |
| 21 — 32 | 45 | thirty | 21 | - | 4.0 | - | ||
| 14G2 | 4 — 10 | 47 | 34 | 21 | - | 3.5 | - | 180 ° c = 2a |
| 11 — 32 | 46 | 33 | 21 | - | 3.0 | - | ||
| 18G2 | 8 — 10 | 52 | 36 | 21 | - | 4 | - | 180 ° c = 2a |
| 12GS | 4 — 10 | 47 | 32 | 26th | - | - | - | 180 ° c = a |
| 16GS | 4 — 10 | 50 | 33 | 21 | - | 4 | 3 | 180 ° c = 2a |
| 11 — 20 | 49 | 32 | 21 | 6th | 3 | 2.5 | ||
| 21 — 32 | 48 | thirty | 21 | 6th | 3 | 2.5 | ||
| 33 — 60 | 47 | 29 | 21 | 6th | 3 | 2.5 | ||
| 60 to 160 | 46 | 28 | 21 | 6th | 3 | 2.5 | ||
| 17GS | 4 — 10 | 52 | 35 | 23 | - | 4,5 | - | 180 ° c = 2a |
| 11 — 20 | 50 | 34 | 23 | - | 3.5 | - | ||
| 09G2S | 4 — 10 | 50 | 35 | 21 | - | 4 | 3.5 | 180 ° c = 2a |
| 11 — 20 | 48 | 33 | 21 | 6th | 3.5 | 3 | ||
| 21 — 32 | 47 | 31 | 21 | 6th | 3.5 | 3 | ||
| 33 — 60 | 46 | 29 | 21 | 6th | 3.5 | 3 | ||
| 61 — 80 | 45 | 28 | 21 | 6th | 3.5 | 3 | ||
| St. 80 to 160 | 44 | 27th | 21 | 6th | 3.5 | 3 | ||
| 10Г2С1 | 4 — 10 | 52 | 38 | 21 | - | 4 | 3 | 180 ° c = 2a |
| 11 — 20 | 51 | 36 | 21 | 6th | 3 | 2.5 | ||
| 21 — 32 | 50 | 35 | 21 | 6th | 3 | 2.5 | ||
| 33 — 60 | 48 | 34 | 21 | 6th | 3 | 2.5 | ||
| 60 to 160 | 46 | 32 | 21 | 6th | 3 | 2.5 | ||
| 15GF | 4 — 10 | 52 | 38 | 21 | - | 4 | - | 180 ° c = 2a |
| 11 — 20 | 52 | 36 | 21 | - | 3 | - | ||
| 21 — 32 | 48 | 34 | 21 | - | 3 | - | ||
14HGS 15ХСНД |
4 — 10 | 50 | 35 | 22 | - | 4 | - | 180 ° c = 2a |
| 4 — 32 | 50 | 35 | 21 | - | 3 | 3 | 180 ° c = 2a | |
| 10ХСНД | 4 — 10 | 54 | 40 | 19 | - | 5 | - | 180 ° c = 2a |
| 11 — 15 | 54 | 40 | 19 | - | 4 | 3 | 180 ° c = 2a | |
| 16 — 32 | 54 | 40 | 19 | - | 5 | 3 | 180 ° c = 2a | |
| 33 — 40 | 52 | 40 | 19 | - | 5 | 3 | - | |
| B. Steel for the reinforcement of reinforced concrete structures | ||||||||
| 35GS | 6 — 40 | 60 | 40 | 14 | - | - | - | 90 ° c = 3d |
| 18G2S | 6 — 9 | 60 | 40 | 14 | - | - | - | 90 ° c = 3d |
| 40 — 90 | 50 | thirty | 14 | - | - | - | ||
| 25G2S | 6 — 40 | 60 | 40 | 14 | - | - | - | 90 ° c = 3d |
| 20ХГ2Ц | 10 — 32 | 90 | 60 | 6th | - | - | - | 45 ° c = 5d |
| 80C | 10 — 18 | 90 | 60 | 6th | - | - | - | 45 ° c = 5d |
Notes
1. At the request of the consumer for group steels, A, an elongation test is carried out on samples of ten times the length. In this case the norms of relative elongation, indicated in Table. 3, decrease by 3% (abs).
2. The mechanical properties of steels of grades 14ХГС and 18Г2 of all thicknesses, grade 09Г2 with a thickness of 21−32 mm and grade 10ХСНД of thickness more than 15 mm refer to steel in the heat-treated state.
3. Steel alloys, which are tested for impact strength at minus 70 ° C, are supplied in a normalized or improved state. It is allowed to carry out normalization or other kind of heat treatment and in other cases for Group A steel.
4. The impact strength of grades 09G2 and 15KSND of 5−10 mm thickness at minus 40 ° C must be not less than 4 kgf / cm2.
5. Shaped grades 09Г2, 09Г2С, 10ХСНД and 14Г2 with a thickness of 11 mm and less are allowed to be delivered without thermal treatment, and the impact strength at minus 70 ° C must be at least 3 kgf / cm2. Mark 17GS, supplied in the heat-treated state at a thickness of rolled 11 — 20 mm, should have an impact strength at a temperature of minus 40 ° C of at least 4 kgf / cm2. The impact strength of steel is determined on the customer’s request under the following conditions:
- a) normal temperature (+20 ° C) and one negative temperature;
- b) normal temperature (+20 ° C) and after mechanical aging;
- c) one minus temperature and after mechanical aging;
- d) one of these temperatures (+20, -40 and -70 ° C) or after mechanical aging.
The minimum value of impact strength at a temperature of +20 ° C after mechanical aging should be at least 3 kgf / cm2.
Mechanical properties (temperature 20 ° C)
| Steel grades | Rolled thickness in mm | Mechanical properties | Bend test for 180º in the cold state: c is the thickness of the mandrel; a is the thickness of the rolled product; | ||||
| when stretched | Impact strength аn in kgfm / cm2 | ||||||
| Temporary resistance to rupture sv in kgf / mm2 | Yield strength sт in kgs / mm2 | Relative elongation δ5 in% | At a temperature | ||||
| -40 ° С | -70 ° С | ||||||
| not less than | |||||||
| 09G2 | 10 — 20 | 52 | 40 | 19 | 5 | 3 | c = 2a |
| 14G2 | 10 — 32 | 54 | 40 | 18 | 4 | 3 | c = 2a |
| 16GS | 10 — 32 | 52 | 40 | 18 | 4 | 3 | c = 2a |
| 09G2S | 10 — 32 | 50 | 37 | 19 | 5 | 3 | c = 2a |
| 33 — 60 | 46 | 32 | 21 | 5 | 3 | c = 2a | |
10Г2С1 15ХСНД |
10 — 40 | 54 | 40 | 19 | 5 | 3 | c = 2a |
| 10 — 32 | 60 | 50 | 1 7 | 4 | 3 | c = 2a | |
Note. The norms of mechanical properties for the thickness of rolled products, not provided in Table. 3, as well as for steel grades and thicknesses of rolled products not provided for in Table. 4, are established by agreement of the parties.
Delivery, price
Are you interested in low-alloy structural steel GOST? Buy low-alloy structural steel at an affordable price from the supplier Avlob today. The price is formed on the basis of European production standards. Supplier Avlob offers to buy low-alloy structural steel at the optimal price in bulk or at retail.