High Quality Round Bar
- Loading Port:
- Tianjin
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 25 Tons m.t.
- Supply Capability:
- 500 Tons Per Day m.t./month
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Specifications of High Quality Round Bar
1. Grade: GB, JIS, ASTM, EN
2. Grade: Q235, SS400, A36, S235JR
3. Diameter and mass: As below
Diameter | Mass | Diameter | Mass | Diameter | Mass |
(mm) | (kg/m) | (mm) | (kg/m) | (mm) | (kg/m) |
6 | 0.22 | 22 | 2.98 | 53 | 17.30 |
7 | 0.30 | 24 | 3.55 | 56 | 19.30 |
8 | 0.40 | 25 | 3.85 | 60 | 22.20 |
9 | 0.50 | 26 | 4.17 | 63 | 24.50 |
10 | 0.62 | 28 | 4.83 | 65 | 26.00 |
11 | 0.75 | 30 | 5.55 | 70 | 30.20 |
12 | 0.89 | 32 | 6.31 | 75 | 34.70 |
13 | 1.04 | 34 | 7.13 | 80 | 39.50 |
14 | 1.21 | 36 | 7.99 | 85 | 44.50 |
15 | 1.39 | 38 | 8.90 | 90 | 49.90 |
16 | 1.58 | 40 | 9.86 | 95 | 55.60 |
17 | 1.78 | 42 | 10.90 | 100 | 61.70 |
18 | 2.00 | 45 | 12.50 | 120 | 88.85 |
19 | 2.23 | 48 | 14.20 | 140 | 120.93 |
20 | 2.47 | 50 | 15.40 | 150 | 138.82 |
4. Material: Mild Steel
5. Heat treatment of high quality steel:
Fire: Isothermal annealing temperature is 800 ~ 880 °C, with 10 ~ 20 °C, the furnace cooling to about 600 °C, hardness above HB269.
Preheat temperature: 730-730 °C
Quenching temperature: 1190-1210 °C
Tempering temperature: 540-595 °C
Cold drawn, hardness 285 HBS
Cold drawn after annealing condition, hardness 277 HBS
Quenching methods: oil quenching, air cooling or salt bath quenching
Usage and Applications of High Quality Round Bar
1) Suitable for making various strong cutting tool abrasion resistance, impact resistance.
2) Used to produce all kinds of high hard and super hard saw blade, drill, tap, broach, gear hob and various kinds of milling cutter.
3) Used for advanced punching die, screw die, and the toughness and complicated shape of the punch, etc.
4) Is used for cold forging die and drawing mode, etc.
5) Recommended watchcase factory, screw factory and other cold stamping products industry use.
Packaging & Delivery of High Quality Round Bar
Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: 45 days
Trade terms: FOB, CFR, CIF
MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.
Weight: The price invoicing on theoretical weight basis or actual weight basis depends on customer’s request.
Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.
Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.
Production Flow of High Quality Round Bar
The common processes are preheated forging quenching, dual refinement solution process, cooling quenching and isothermal quenching. We use heat treatment for dual refinement solution process. The main measures process is high temperature solution and refinement cycle. High temperature solution can improve the carbide morphology and particle size. The aim is to make the loop refinement ultrafine austenite grains.
- Q:How to distinguish cold formed section steel and hot rolled section steel?
- Cold-formed steel is one of many varieties of steel in the strip width, under normal temperature conditions after the roll, a group of vertical deformation gradually, to meet the requirements of the use of shape and size, then determine the size of the corresponding shear length. This product is cold-formed steel. Of course, it is also possible to obtain cold-formed steel by stamping, bending or drawing. But the roll bending forming method is suitable for industrial production in large quantities. Its product quality, processing cost and production efficiency are incomparable with other methods, and it is the main production process of cold-formed steel. If the equipment is equipped with welding equipment (such as high-frequency welding, argon arc welding, etc.), it can also produce cold rolled steel with closed section.
- Q:What is special steel?
- Reinforcing bars for reinforced concreteIs a small type steel reinforced concrete. Including hot rolled round steel bar and prestressed concrete with reinforced concrete, thermal cold rolled steel. Steel reinforcement strip. In addition, also known as the other thread steel. Because the steel in rolling surface of rolled thread handle or reinforcement, steel reinforced concrete is in the construction industry reinforced. According to the material yield point and tensile strength, I, II, III and IV grade steel. The steel bars are used directly. The rebar, reinforced concrete to stress by heat treatment after heat treatment of high strength, but does not apply to steel welding and spot welding, reinforced by 40Si2Mn, 48Si2Mn, 45Si2Cr etc. steel after heat treatment is made, nominal diameter 6, 8.2, 10 mm. Cold rolled ribbed bar with Q215, Q235, 24MnTi steel, nominal diameter 4-12 mm. Steel after heat treatment should be rolled into plate, to heat treatment delivery.
- Q:What does "BH" mean?
- In accordance with the different smelting quality of steel, steel is divided into ordinary steel and high quality steel. According to the current catalogue of metal products, ordinary steel can be divided into large section steel, medium section steel and small section steel. The section steel can be divided into I-beam, channel steel, angle steel, round steel and so on according to its sectional shape.
- Q:What does "M" mean?
- The former refers to the steel, round steel, flat steel, angle steel, six angle steel; the latter refers to the I-beam, channel steel, steel, steel, steel frame bending etc..
- Q:Does the profile include H?
- Profiles include section H steelThe online quote H steel and profiles in the angle of groove separate quotation, mainly because H steel has great use compared with the other, and the demand is relatively more, but in some cases, and H type steel I-beam can also substitute for each other.
- Q:Elastic modulus of section steel
- The elastic modulus of steel is 2.1 * 10^7N/cm L.
- Q:Can the section steel butt joint in the end?
- Bolt connection also requires lining plate, pay attention to bolt size, quantity and spacing. To calculate whether thin-walled steel itself will be crushing, the solution is solder paste board, and bolt holes. The principle is that the strength of the butt joint is not weaker than that of other parts, and there is no greater stress.
- Q:What are the common types of profiled steel?
- Complex section steel has: I-beam, channel steel, steel, elevator rail, steel sheet pile, and various kinds of agricultural machinery, machinery manufacturing and construction of special-shaped steel.Section steel according to production methods are: hot-rolled steel, cold-formed steel, welding, H steel, etc.
- Q:What kind of steel is used in steel columns?
- Compared with other steel piles, steel pipe piles have their own advantages in many aspects, such as long joint welding, single pile bearing capacity, bending rigidity and penetration ability.
1. Manufacturer Overview |
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Location | Renqiu, China |
Year Established | 1996 |
Annual Output Value | Above US$ 30 Million |
Main Markets | Mid East; Southeast Aisa |
Company Certifications |
2. Manufacturer Certificates |
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a) Certification Name | |
Range | |
Reference | |
Validity Period |
3. Manufacturer Capability |
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a)Trade Capacity | |
Nearest Port | Tianjin; |
Export Percentage | 20% - 30% |
No.of Employees in Trade Department | 11-20 People |
Language Spoken: | English; Chinese |
b)Factory Information | |
Factory Size: | Above 70,000 square meters |
No. of Production Lines | 1 |
Contract Manufacturing | OEM Service Offered |
Product Price Range | Average |
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High Quality Round Bar
- Loading Port:
- Tianjin
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 25 Tons m.t.
- Supply Capability:
- 500 Tons Per Day m.t./month
OKorder Service Pledge
OKorder Financial Service
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