| Type: | Round |
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| Standard: | AISI, ASTM, DIN, JIS, GB, BS |
| Composition: | Carbon Steel |
| Technique: | Hot Rolled |
| Shape: | Bar |
| Surface Treatment: | Bright, Chrome Plated |
| Samples: |
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| Customization: |
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Audited Supplier 
Round steel with a bright surface and no rolling defects and decarburization layer on the surface. It can be subdivided into peeled, polished, and polished materials. Silver bright steel is used as machine structural steel for various specialized purposes, such as for bolts with strong wear. In addition, such as spindles, piston rods, spokes, and similar components can be used as tool steel in the quenched state.
| component | C | Si | Mn | P | S | Cu | Ni | Cu |
| minimum value | 0.43 | 0.2 | 0.6 | - | - | - | - | - |
| Maximum value | 0.5 | 0.4 | 0.9 | 0.04 | 0.05 | 0.2 | 0.3 | 0.25 |
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Commodity
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Bright round steel/chrome plated rod | |
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Grades
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Carbon steel
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SAE 1018 , A36, SS400, S235JR, Q235, SAE 1020, S20C , 1.0402, 20GB, CK22,
SAE 1045 ,S45C, C45, CK45, EN8 ,1.1191 |
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Alloy steel
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SAE 5120 , 20Cr, Scr 420H, 20Cr4, SAE 5140 , 40Cr,SCr440, 520M40,
SAE 4130 , 30CrMo, SCM430, SCM420, SAE 4140 , 42CrMo4, EN19, SCM440, 708A42, 708M40, SAE 4340, 40CrNiMoA,871M40 , SNCM439 |
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Length
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4-12m random length or as per request fixed length
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Surface
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Bright, or chromate treatment as per required
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Packing
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Wrapped by plastic clothes and steel strips
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Delivery Condition
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BK, BKW, GBK, NBK
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Container
Size |
20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High)
40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) |
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Application
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hardware tools, auto parts, standard parts, fasteners common shaft, machinery manufacturing, light industry, hardware, bicycles,
cars, motorcycles, textile machinery, transformers and other machinery industry. |
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Advantages
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greater size accuracy, straightness and increased tensile and yield strength as well as improved machinability
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MOQ
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1 tons
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condition
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Heat treatment or condition
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tensile strength
σb Mpa |
Yield point
σs Mpa |
Elongation
δ % |
hardness
HBW |
Impact absorbed energy
KV2 J |
Reduction of area
ψ % |
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steel products; All dimensions
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Softening annealing (G)
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≤207
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steel products;d≤16
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Tempering
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700~850
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≥500
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≥14
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≥35
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ISO-V
≥25 |
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steel products;16
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Tempering
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650~800
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≥430
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≥16
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≥40
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≥25
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steel products;40
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Tempering
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630~780
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≥370
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≥17
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≥45
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≥25
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Bar;16
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Normalized (N)
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590~740
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≥335
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≥17
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Flat steel;d≤16
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Normalized (N)
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580~770
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≥340
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portrait
≥17
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Flat steel;16
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Normalized (N)
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580~770
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≥305
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≥17
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Flat steel;100
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Normalized (N)
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560~750
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≥275
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≥15
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| 40 | High strength, good machinability, medium cold deformation ability, poor weldability, no tempering brittleness, low hardenability, easy to produce water quenched cracks, mostly used in quenched and tempered or normalized state, with similar comprehensive properties, and can be used to manufacture parts bearing large stress after surface quenching | Suitable for manufacturing crankshaft mandrels, transmission shafts, piston rods, connecting rods, sprockets, gears, etc. Preheating and slow cooling are required before welding |
| 45 | The most commonly used medium-carbon quenched and tempered steel has good comprehensive mechanical properties, low hardenability, and is prone to crack during water quenching. Small parts should be quenched and tempered, and large parts should be normalized | It is mainly used to manufacture moving parts with high strength, such as turbine impeller and compressor piston. Shaft, gear, rack, worm, etc. Pay attention to preheating before welding and stress relief annealing after welding |
| 50 | High strength medium carbon structural steel has low cold deformation ability and medium machinability. Poor weldability, no temper brittleness, low hardenability, easy to crack during water quenching. Use status: normalizing, tempering after quenching, high-frequency surface quenching, applicable to mechanical parts with high wear resistance under the condition of small dynamic load and impact | Forged gears, pull rods, rollers, shaft friction discs, machine tool spindles, engine crankshafts, agricultural machinery ploughshares, heavy load mandrels and various shaft parts, as well as minor damping springs, spring washers, etc |
| 55 | It has high strength and hardness, poor plasticity and toughness, medium machinability, poor weldability, poor hardenability, and easy to crack when water quenched. It is mostly used after normalizing or tempering treatment, and is suitable for manufacturing high-strength, high-elastic and high-wear parts | Gear, connecting rod, wheel rim, rim, locomotive wheel rim, flat spring, hot rolling roller, etc |
| 60 | It has high strength, high hardness and high elasticity. During cold deformation, the plasticity is poor, the machinability is medium, the weldability is poor, the hardenability is poor, and the water quenching is easy to crack; Therefore, large parts shall be normalized. | Roll, shaft, wheel rim, spring coil, damping spring, clutch, wire rope |
Packaging |
1. by bundles, each bundle weight under 3 tons, for small outer diameter steel bars, each bundle with 4 - 8 steel strips. 2. after making by bundle, covered with Polyethylene waterproof cloth. 3. make black paints painting on each bar, then make bundles |
| 20 feet container contains dimension | Length under 6000mm |
| 40 feet container contains dimension | Length under 12000mm |
| By bulk vessel | Freight charge is low by bulk cargo, and large heavy sizes can not be loaded into containers can shipping by bulk cargo |
1. Who are we?
Our headquarter is located in Shandong, China. Since 2022, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.
2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;
3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.
5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese
6. How can we get your price?
A. We need the following information to quote for you:
1). Product Name
2). standard
3). Material grade (chemical composition)
4). dimension
5). amount
6). Special part drawin
Suppliers with verified business licenses
Audited Supplier 
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