Characteristics of precision seamless steel tube
1. Smaller outer diameter.
2. High precision can do small batch production.
3. Cold drawn finished high precision, good surface quality.
4. Tube cross-sectional area is more complex.
5. Pipe performance is better, more dense metal.
| GRADE | 15Cr | 5115 | SCR415 | 15Cr3 |
| 20Cr | 5120 | SCR420H | 20Cr4 | |
| 30Cr | 5130 | SCR430 | 28Cr4 | |
| 35Cr | 5132 | SCR430H | 34Cr4 | |
| 40Cr | 5140 | SCR440 | 41Cr4 | |
| 12CrMo | A-387CR | A-387CR | 13CrMo44 | |
| 15CrMo | 41.494.18 | 4125 | 16CrMo44 | |
| 20CrMo | 4125 | 4130 | 20CrMo44 | |
| 25CrMo | 4130 | SCR420H | 25CrMo4 | |
| 30CrMo | SCR420H | 4140 | 34CrMo4 | |
| 35CrMo | 4140 | 4140 | 42CrMo4 | |
| 42CrMo | A-387CR |
| Material | |
| ASTM | A53,A283,A106-A,A179-C,A214-C,A192,A226,A315,A106-B,A178,A210 |
| GB | Q195,Q235,Q275,10#,15#20#，20G |
| JIS | STPG38,STS38,STB,30,STS42,STB42STB35 |
| DIN | ST33,ST37,ST35.8,ST42,ST45-8,ST52 |
| Dimensions | 8-553.8 mm；(1/2 inch~22 inch) |
| Length | 2000-18000mm，or as required |
| Standard | ASTM，AISI，JIS，GB， DIN，EN |
| Surface treatment | Light |
| Tolerance | + / -0.005 # + / 0.005 |
| Technique | Cold Drawn,Cold Rolled,Bright Anneal grinding etc |
| Heat Treatment | Annealed; Quenched; Tempered |
| Certification | ISO, SGS，BV，Mill Certificate |
| Inspection | With Chemical Composition and Mechanical Properties Analysis;Dimensional and Visual Inspection, Also With Nondestructive Inspection |
| price terms | FOB,CRF,CIF,EXW all acceptable |
| Delivery Detail | inventory About 3-5； custom-made 15-20；According to order's quantity. |
| Loading port | any port in China |
| Packing | standard export packing (inside:water proof paper,outside:steel covered with strips and pallets)Hexagon Shape Bundle, Covered With Tarpaulin, Containers Or In Bulk |
| Payment Terms | T/T, L/C at sight,West Union,D/P,D/A,Paypal |