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| After-sales Service: | 7 X 24 Hours One Week |
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| Warranty: | 12 Months |
| Type: | Carbon and Alloy |
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| Products Parameters |
| Commodity | Cold Drawing / Drawn Flat/ Square / Rectangular / Rectangle / Hexagonal / Special Shape Rods Bars | |
| Standard | GB/T 3078-2019, GB/T 905-1994 | |
| Grades | Carbon steel | SAE 1018 , A36, SS400, S235JR, Q235, SAE 1020, S20C , 1.0402, 20GB, CK22, SAE 1045 ,S45C, C45, CK45, EN8 ,1.1191 |
| Alloy steel | 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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| Specification | Round Bar | 5mm to 100mm |
| Square bar | 5*5mm to 120*120mm | |
| Flat bar | 5*20mm to 20*100mm | |
| hex bar | 5mm to 120mm | |
| hexagonal bar | 5mm to 120mm (side to side) | |
| Tolerance | Class H11 | |
| Length | 4-12m random length or as per request fixed length | |
| Surface | Bright, or dark as per required | |
| Packing | Wrapped by plastic clothes and steel strips | |
| Delivery Condition | BK, BKW, GBK, NBK | |
| 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 | hardware tools, auto parts, standard parts, fasteners common shaft, machinery manufacturing, light industry, hardware, bicycles, cars, motorcycles, textile machinery, transformers and other machinery industry. | |
| Advantages | greater size accuracy, straightness and increased tensile and yield strength as well as improved machinability | |
| MOQ | 1 tons | |

| Production Process |
| Tolerance Class Table |
| NOMINAL SIZE DIAMETER mm | H11 |
| 1 to 3 | -0.06 |
| -0.00236" | |
| Over 3 to 6 | -0.075 |
| -0.00295" | |
| Over 6 to 10 | -0.09 |
| -0.00354" | |
| Over 10 to 18 | -0.11 |
| -0.00433" | |
| Over 18 to 30 | -0.13 |
| -0.00512" | |
| Over 30 to 50 | -0.16 |
| -0.00630" | |
| Over 50 to 80 | -0.19 |
| -0.00748" | |
| Over 80 to 120 | -0.22 |
| -0.00866" |
| Who We Are |

Our Group have more than 1000 employees and we serve and do business with clients from more than 40 countries and areas now!
| Frequently Asked Questions |
| Why Choose Us |
All needed tests will be done before packing and sending goods, which will ensure 100% qualified!
The factory covers an area of 1 million square meters. Modern office plant and standardized management make high-quality products possible.
For conventional specification and steel grade steel products, our inventory exceeds 100000 tons, which makes lightning delivery possible.
We have more than 20 kinds of steel products. We are creating a one-stop intimate procurement service for you, from Stocks sales to Production order, from warehousing to logistics. If you need steel, come to Xinruyi Steel!