Complaint
| product name | square bar/billet | |
| Width(mm) | 5mm*5mm-500*500mm | |
| Length(mm) | 600-12000mm | |
| Technology | hot rolled/cold rolled/cold drawn | |
| Material | ASTM | A36, Grade 36, Grade 40 Grade 50, Grade 60, Grade 80,etc |
| DIN | Ck10,Ck15,Ck22,Ck25,Ck30,Ck35,Ck40,Ck45,Ck50, 30Mn4,40Mn4,etc | |
| BS | 040A04,095M15,045M10,080A40,045M10,080M50,etc | |
| GB | Q195, Q215, Q235, Q255, Q275, Q295, Q345, Q390, Q420, Q500, etc | |
| Standard | GB/T799,ASTM A29,A108,A321,A575,BS970,DIN1652,JIS G4051 | |
| Surface | Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE | |
| Certificates | API5L ISO 9001:2008 TUV CE SGS BV etc | |
| Packaging | Loose package, Packaged in bundles(3Ton Max) , bundled pipes with two slings at the both end for easy loading and discharging, End with Plastic caps or as per requirement | |
| Application | 1. Fluid pipe 2. Power Plant 3. Structure pipe 4. High and low pressure Boiler tube 5. Seamless pipe /tube for petroleum cracking 6. Conduit pipe 7. Scaffolding pipe pharmaceutical andship,building etc. | |
| Tolerance | ±1% | |
| MOQ | 1 ton | |
| Supply Ability | 5000 tons / month | |
| Lead Time | 7-15 working days after the receipt of 30% deposit | |
| Payment Terms | 30%T/T Advance + 70% Balance | |
| Price Terms | FOB, CFR, CIF, EXW | |
| Packing | Standard sea-worthy package or as required | |
| Grade | Dia(mm) | Chemical Composition (%) | |||||||||
| C | Si | Mn | P | S | Ni | Cr | Cu | Ti | Mo | ||
| 45 | 18-60 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 | ≤0.25 | ||
| 55 | 0.52-0.60 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 | ≤0.25 | |||
| 40Mn2 | 0.37-0.44 | 0.17-0.37 | 1.40-1.80 | ≤0.035 | ≤0.035 | ≤0.30 | |||||
| 20CrMnTi | 0.17-0.23 | 0.17-0.37 | 0.80-1.10 | ≤0.035 | ≤0.035 | 1.00-1.30 | 0.04-0.10 | ||||
| 20CrMo | 0.17-0.24 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.80-1.10 | 0.15-0.25 | ||||
| 30CrMo | 0.26-0.34 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.80-1.10 | 0.15-0.25 | ||||
| 35CrMo | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.80-1.10 | 0.15-0.25 | ||||
| 42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.90-1.20 | 0.15-0.25 | ||||
| 60Si2MnA | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.90-1.20 | |||||
| Grade | Mechanical property | |||||
| (Quenching, tempering, longitudinal) | ||||||
| Tensile strength | Yield strength | Elongation | Elongation | Percentage reduction of area | Impact absorbing energy | |
| (σb/MPa) | (σs/MPa) | (δ5/%) | (δ10/%) | (ψ/%) | (AkU2/J) | |
| 45 | ≥600 | ≥335 | ≥16 | ≥40 | 39 | |
| 55 | ≥645 | ≥380 | ≥13 | ≥35 | - | |
| 40Mn2 | ≥885 | ≥735 | ≥12 | ≥45 | 55 | |
| 20CrMnTi | ≥1080 | ≥850 | ≥10 | ≥45 | 55 | |
| 20CrMo | ≥885 | ≥685 | ≥12 | ≥50 | 78 | |
| 30CrMo | ≥930 | ≥785 | ≥12 | ≥50 | 63 | |
| 35CrMo | ≥980 | ≥835 | ≥12 | ≥45 | 63 | |
| 42CrMo | ≥1080 | ≥930 | ≥12 | ≥45 | 63 | |
| 60Si2MnA | ≥1274 | ≥1176 | ≥5 | ≥25 | - | |
| Theoretical weight table of square steel bar | |||||
| Side length(mm) | Sectional area(cm2) | Theoretical weight (kg/m) | Side length | Sectional area(cm2) | Theoretical weight (kg/m) |
| 5mm | 0.25 | 0.196 | 30mm | 9 | 7.06 |
| 6mm | 0.36 | 0.283 | 32mm | 10.24 | 8.04 |
| 7mm | 0.49 | 0.385 | 34mm | 11.56 | 9.07 |
| 8mm | 0.64 | 0.502 | 36mm | 12.96 | 10.17 |
| 9mm | 0.81 | 0.636 | 38mm | 14.44 | 11.24 |
| 10mm | 1 | 0.785 | 40mm | 16 | 12.56 |
| 11mm | 1.21 | 0.95 | 42mm | 17.64 | 13.85 |
| 12mm | 1.44 | 1.13 | 45mm | 20.25 | 15.9 |
| 13mm | 1.69 | 1.33 | 48mm | 23.04 | 18.09 |
| 14mm | 1.96 | 1.54 | 50mm | 25 | 19.63 |
| 15mm | 2.25 | 1.77 | 53mm | 28.09 | 22.05 |
| 16mm | 2.56 | 2.01 | 56mm | 31.36 | 24.61 |
| 17mm | 2.89 | 2.27 | 60mm | 36 | 28.26 |
| 18mm | 3.24 | 2.54 | 63mm | 39.69 | 31.16 |
| 19mm | 3.61 | 2.82 | 65mm | 42.25 | 33.17 |
| 20mm | 4 | 3.14 | 70mm | 49 | 38.49 |
| 21mm | 4.41 | 3.46 | 75mm | 56.25 | 44.16 |
| 22mm | 4.84 | 3.8 | 80mm | 64 | 50.24 |
| 24mm | 5.76 | 4.52 | 85mm | 72.25 | 56.72 |
| 25mm | 6.25 | 4.91 | 90mm | 81 | 63.59 |
| 26mm | 6.76 | 5.3 | 95mm | 90.25 | 70.85 |
| 28mm | 7.84 | 6.15 | 100mm | 100 | 78.5 |
