chrome moly alloy seamless steel pipe
Product Description
Cold rolled( drawn) seamless steel tube be devided to normal steel tube, low & middle pressure boiler tube, high pressure boiler tube, alloy steel tube, others. Cold rolled seamless steel tube minimum outside diamter is 6mm. Cold rolled seamless steel tube precision is higher than hot rolling.
Carbon steel tube material: 10#,20#,30#,45# etc high grade carbon steel.
10#(ST35.8),20# (St45.8) is kind of low carbon steel, applied to fluid transportation piping.
45#(1045) is kind of middle carbon steel,applied to mechanical parts: automotive spare parts,motorcycle spare parts. And it ensure strength and flattening test.
Application: Most of RAY STEEL TUBE are used for mechanical structure,hydraulic equipment's size with high precision and good surface finish. Precision seamless steel tube be used for mechanical structure and hydraulic equipment, not only save time, imporve the material utilization,but also imporve product quality.
| Material | Carbon Steel and Alloy Steel |
| Section Shape | Round |
| Surface treatment | Oiled, phosphate etc |
| Outer Diameter | 6-65mm |
| Wall Thickness | 1-8mm |
| Seamless Steel Tube Standard | DIN2391, DIN17175, ASTM A106, ASTM A213, ASTM A53, ASTM A312, ASTM A179, SAE 4130. JIS G3445, JIS G3444, JIS G 3461, JIS G3441, JIS G3454 etc |
| Steel Tube Grade | 1010 (10#, STS38,STKM11A,STKM12A,STKM13C, A106 Gr.A,St35.8, St37,St35,E215 etc) 1020 (20#, STPG42,STKM12B,STKM12C,STKM13A,STKM13B,A106Gr.B, A53.B, St45.8,St44, St45, E235 etc) 1045 (45#) |
| Packing Details | 1.Internal wrapped with plastic film. External wrapped with woven bags. 2. wooden boxes to pack. 3. Iron stand. |
| Certification | ISO9001 |
| Delivery condition | BK BKW BKS GBK NBK |
| Length | 1-12m as customer's requestment |
| Dimension tolerance comparision Chart | ||||
| Outside Diameter | GB/T 3639 | DIN2391(EN10305) | RAY steel tube standard | Special standard |
| 6-30mm | +/-0.1 mm | +/-0.08 mm | +/-0.05 mm | +/-0.03 mm |
| 31-40mm | +/-0.15 mm | +/-0.15 mm | +/-0.05 mm | +/-0.03 mm |
| 41-50mm | +/-0.20 mm | +/-0.20 mm | +/-0.05 mm | +/-0.03 mm |
| 51-60mm | +/-0.25 mm | +/-0.25 mm | +/-0.08 mm | +/-0.03 mm |
| 61-65mm | +/-0.30 mm | +/-0.30 mm | +/-0.10 mm | +/-0.05 mm |
| Thickness | +/-0.12 mm | +/-0.10 mm | +/-0.05 mm | +/-0.03 mm |
Cold rolled seamless steel tube image
Chemical composition comparison Sheet:
| Steel Grade | C | Si | Mn | S | P | Cr | Ni | Cu |
| 10 | 0.08-0.13 | 0.15-0.35 | 0.30-0.60 | ≤0.030 | ≤0.030 | ≤0.20 | ≤0.25 | ≤0.25 |
| 1010 | 0.08-0.13 | 0.15-0.35 | 0.30-0.60 | ≤0.050 | ≤0.040 | ≤0.20 | ≤0.25 | ≤0.25 |
| STKM11A | ≤0.12 | ≤0.35 | ≤0.60 | ≤0.040 | ≤0.040 | |||
| S10C | 0.08-0.13 | 0.15-0.35 | 0.30-0.60 | ≤0.030 | ≤0.030 | ≤0.20 | ≤0.20 | ≤0.30 |
| DC011.0330 | ≤0.12 | ≤0.60 | ≤0.045 | ≤0.045 | ||||
| C10C1.0214 | 0.08-0.12 | ≤0.10 | 0.30-0.50 | ≤0.025 | ≤0.025 | AL0.020~0.060 | ||
| Гост10 | 0.07-0.14 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.040 | ≤0.15 | ||
| A106 Gr.A | ≤0.25 | ≤0.10 | 0.27-0.93 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.40 |
| St35.8 | ||||||||
| St37 | ≤0.17 | 0.17-0.37 | 0.35-0.65 | ≤0.020 | ≤0.025 | ≤0.25 | ≤0.25 | ≤0.20 |
| St35 | ≤0.17 | ≤0.35 | ≤0.40 | ≤0.025 | ≤0.025 | |||
| E215 | ≤0.10 | ≤0.05 | 0.7 | ≤0.025 | ≤0.025 | |||
| 20 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | |
| STKM12A | ≤0.20 | ≤0.35 | ≤0.60 | ≤0.20 | ≤0.040 | ≤0.040 | ||
| STKM12B | ||||||||
| STKM12C | ||||||||
| STKM13A | ≤0.25 | ≤0.35 | 0.30-0.90 | ≤0.20 | ≤0.040 | ≤0.040 | ||
| STKM13B | ||||||||
| STKM13C | ||||||||
| 1020 | 0.18-0.23 | 0.30-0.60 | ≤0.050 | ≤0.040 | ||||
| S20C | 0.18-0.23 | 0.15-0.35 | 0.30-0.60 | ≤0.030 | ≤0.030 | ≤0.20 | ≤0.20 | ≤0.20 |
| C22 1.0402 | 0.17-0.24 | ≤0.40 | 0.40-0.70 | ≤0.045 | ≤0.045 | ≤0.40 | ≤0.40 | |
| C20C 1.0411 | 0.18-0.22 | ≤0.10 | 0.7-0.9 | ≤0.025 | ≤0.025 | |||
| Гост 20 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.040 | ≤0.025 | ≤0.030 | ≤0.030 |
| A106Gr.B | ≤0.25 | ≤0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.40 |
| A53.B | ≤0.30 | ≤1.2 | ≤0.045 | ≤0.05 | ≤0.40 | ≤0.40 | ||
| St45.8 | ||||||||
| St44 | ||||||||
| St45 | ≤0.21 | ≤0.35 | ≥0.40 | ≤0.025 | ≤0.025 | |||
| E235 | 0.17-0.22 | ≤0.35 | ≤0.40 | ≤0.025 | ≤0.025 | |||
| 45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.25 |
| 1045 | 0.43-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.045 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.10 |
| C45 1.0503 | 0.42-0.50 | ≤0.40 | 0.50-0.80 | ≤0.045 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.10 |
| Гос т 45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.040 | ≤0.25 | ≤0.30 | ≤0.30 |
| CK45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.020 | ≤0.025 | ≤0.25 | ≤0.25 | ≤0.20 |
Cold Rolled seamless steel tube show: