Carbon steel square bar with a side length of 5.5mm~300mm.Carbon square steel bar, solid, belongs to bar material, generally processed by hot rolling.Hot rolled steel square bars are generally used in light-weight steel structures, such as steel roof trus
Dimensions and tolerances:
| Carbon Steel Square Bar | Section Nominal Size (Square steel side length) | Allowable deviation | ||
| Group 1 | Group 2 | Group 3 | ||
| ＞5.5~20 | ±0.25 | ±0.35 | ±0.40 | |
| ＞20~30 | ±0.30 | ±0.40 | ±0.50 | |
| ＞30~50 | ±0.40 | ±0.50 | ±0.60 | |
| ＞50~80 | ±0.60 | ±0.70 | ±0.80 | |
| ＞80~110 | ±0.90 | ±1.00 | ±1.10 | |
| ＞110~150 | ±1.20 | ±1.30 | ±1.40 | |
| ＞150~200 | ±1.60 | ±1.80 | ±2.00 | |
| ＞200~280 | ±2.00 | ±2.50 | ±3.00 | |
| ＞280~310 | ±2.50 | ±3.00 | ±4.00 | |
| ＞310~380 | ±3.00 | ±4.00 | ±5.00 | |
| Note: The unit is mm. | ||||
Length and tolerance:
| Hot Rolled Steel Square Bar | usual length | short length | |
| Section Nominal Size | Square bar length | ||
| ≤75 | 2000~12000 | ≥1000 | |
| ＞75 | 1000~8000 | ≥500 | |
| Note: The unit is mm. | |||
Diagonal length:
| Carbon Steel Square Bar | Nominal side length of square bar (a) | Diagonal length ≥ |
| ＜50mm | 1.33 times the nominal side length | |
| ≥50mm | 1.29 times the nominal side length |
Curvature:
| Hot Rolled Steel Square Bar | Group | Curvature per meter | Total curvature (Carbon Steel Bar Length) |
| Group 1 | ≤2.5mm | ≤0.25% | |
| Group 2 | ≤4.0mm | ≤0.40% |
Dimensions and theoretical weight:
| Carbon Steel Square Bar | Nominal side length of square bar a/mm | Theoretical weight/(kg/m) | Nominal side length of square bar a/mm | Theoretical weight/(kg/m) |
| 5.5 | 0.237 | 56 | 24.6 | |
| 6 | 0.283 | 58 | 26.4 | |
| 6.5 | 0.332 | 60 | 28.3 | |
| 7 | 0.385 | 63 | 31.2 | |
| 8 | 0.502 | 65 | 33.2 | |
| 9 | 0.636 | 68 | 36.3 | |
| 10 | 0.785 | 70 | 38.5 | |
| 11 | 0.950 | 75 | 44.2 | |
| 12 | 1.13 | 80 | 50.2 | |
| 13 | 1.33 | 85 | 56.7 | |
| 14 | 1.54 | 90 | 63.6 | |
| 15 | 1.77 | 95 | 70.8 | |
| 16 | 2.01 | 100 | 78.5 | |
| 17 | 2.27 | 105 | 86.5 | |
| 18 | 2.54 | 110 | 95.0 | |
| 19 | 2.83 | 115 | 104 | |
| 20 | 3.14 | 120 | 113 | |
| 21 | 3.46 | 125 | 123 | |
| 22 | 3.80 | 130 | 133 | |
| 23 | 4.15 | 135 | 143 | |
| 24 | 4.52 | 140 | 154 | |
| 25 | 4.91 | 145 | 165 | |
| 26 | 5.31 | 150 | 177 | |
| 27 | 5.72 | 155 | 189 | |
| 28 | 6.15 | 160 | 201 | |
| 29 | 6.60 | 165 | 214 | |
| 30 | 7.07 | 170 | 227 | |
| 31 | 7.54 | 180 | 254 | |
| 32 | 8.04 | 190 | 283 | |
| 33 | 8.55 | 200 | 314 | |
| 34 | 9.07 | 210 | 323 | |
| 35 | 9.62 | 220 | 344 | |
| 36 | 10.2 | 230 | 364 | |
| 38 | 11.3 | 240 | 385 | |
| 40 | 12.6 | 250 | 406 | |
| 42 | 13.8 | 260 | 426 | |
| 45 | 15.9 | 270 | 447 | |
| 48 | 18.1 | 280 | 468 | |
| 50 | 19.6 | 290 | 488 | |
| 53 | 22.1 | 300 | 509 | |
| 55 | 23.7 | |||
| Note: The theoretical weight in the table is calculated according to the density of 7.85g/m3. | ||||
| Product name | Carbon Steel Square Bar |
| Standard: | ASTM，AISI，JIS，GB， DIN，EN |
| Material | A32, AH32, A36, AH36, DH36, D32, DH32 10#, 20#, 45#, Q195, Q215, Q235, Q345, Q235B, Q355B SS490, SM400, SM490 SPHC, SPHD, SPHE, SPHF SEA1002, SEA1006, SEA1008, SEA1010 SPHT1, SHPT2, SPH3, SPH4 or customized |
| Technology | Hot Rolled |
| Length | 3000~12000mm or customized |
| Diameter | 10~300mm or customized |
| Width | 3~2000mm or customized |
| Surface | natural color, black, mill, polished, brush, galvanized etc |
| price terms | FOB,CRF,CIF,EXW all acceptable |
| standard export packing | inside:water proof paper,outside:steel covered with strips and pallets |
| Certification: | ISO, SGS，BV，Mill Certificate |
| Technique | Cold/Hot rolled, Cold-Drawn， or Hot Forged |
| Heat Treatment | Annealed; Quenched; Tempered |
| Delivery Detail | inventory About 3-5； |
| custom-made 15-20； | |
| According to order's quantity. | |
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