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Seamless Cold Drawn Steel Pipe , Cold Drawn Steel Tube
Cold drawn steel pipe is normally divided into low and medium pressure boiler pipe, high pressure boiler pipe, steel pipe, stainless steel pipe, oil cracking pipe, the other steel, but also thin-walled carbon steel, alloy steel thin-walled, thin-walled stainless steel, special steel pipe.
Cold drawn means at room temperature, after cold drawing, cold, cold drawn, such as the processing of cold steel or steel into various types steel. (Including a tapered pipe, oval shaped steel pipe, etc. are manufactured using this method)
Advantages of cold drawn steel pipe: molding speed, high output, and does not damage the coating, can be in the form of cutting brittle various kinds of cross section, to meet the needs of the conditions of use. Cold drawn can make the steel produces very large plastic deformation, thus improve the yield point of steel.
1. Standards
ASME SA106 —— American Boiler and Pressure Vessel norms
ASME SA333 —— American Boiler and Pressure Vessel norms
ASME SA335 —— American Boiler and Pressure Vessel norms
DIN17175 —— German industry standards
EN10216-2 —— European pressure piping standards
2. Application
For the low and medium pressure boiler and steam header pipes; for the high-pressure boiler and steam pipes, and the petrochemical industry pipes.
3. Steel pipes No. of main production:
SA106B, SA106C, SA333 I, SA333 VI, SA335 P5, SA335 P11, SA335 P12, SA335P22, SA335 P91, SA335 P92,
4. Size Available
3''~ 8’’ (88.9mm~219.1mm)
5. Mechanical Properties
| Standards | Steel pipes No. | Tensile strength (Mpa) | Bend strength (Mpa) | Elongation (%) | Impact energy (J) | Hardness |
| ASME SA106 | SA106B | ≥415 | ≥240 | ≥22 | ≥35 | / |
| SA106C | ≥485 | ≥275 | ≥20 | ≥35 | / | |
| ASME SA333 | SA333 I | ≥380 | ≥205 | ≥28 | －45≥18 | / |
| SA335 P11 | ASME SA335 | ≥415 | ≥205 | ≥22 | ≥35 | ≤163HB |
| SA335 P12 | ≥415 | ≥220 | ≥22 | ≥35 | ≤163HB | |
| SA335 P22 | ≥415 | ≥205 | ≥22 | ≥35 | ≤163HB | |
| SA335 P5 | ≥415 | ≥205 | ≥22 | ≥35 | ≤187HB | |
| SA335 P91 | 585～760 | ≥415 | ≥20 | ≥35 | ≤250HB | |
| SA335 P92 | ≥620 | ≥440 | ≥20 | ≥35 | 250HB | |
| DIN17175 | ST45.8/III | 410～530 | ≥255 | ≥21 | ≥27(DVM) | / |
| 15Mo3 | 450～600 | ≥270 | ≥22 | ≥34(DVM) | / | |
| 13CrMo44 | 440～590 | ≥290 | ≥22 | ≥34(DVM) | / | |
| 10CrMo910 | 480～630 | ≥280 | ≥20 | ≥34(DVM) | / | |
| EN10216-2 | 15NiCuMoNb5-6-4 (WB36) | 610～780 | ≥440 | ≥19 | ≥40 | / |
6. Chemical Composition:
| Standards | Steel pipes No. | Chemical composition(%) | |||||||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | Al | W | Cb | N | ||
| ASME SA106 | SA106B | 0.17~ 0.25 | ≥ 0.1 | 0.70~ 1.00 | ≤0.030 | ≤0.030 | |||||||||
| SA106C | 0.23~ 0.27 | ≥ 0.1 | 0.70~ 1.00 | ≤0.030 | ≤0.030 | ||||||||||
| ASME SA333 | SA333 I | 0.09~ 0.12 | / | 0.7~ 1.00 | ≤0.020 | ≤0.010 | |||||||||
| SA333 VI | 0.09~ 0.12 | ≥ 0.1 | 0.9~ 1.10 | ≤0.020 | ≤0.010 | ||||||||||
| ASME SA335 | SA335 P11 | 0.05~ 0.15 | 0.50~ 1.0 | 0.30~ 0.60 | ≤0.030 | ≤0.030 | 1.00~ 1.50 | 0.50~ 1.00 | |||||||
| SA335 P12 | 0.05~ 0.15 | ≤0.50 | 0.30~ 0.61 | ≤0.030 | ≤0.030 | 0.80~ 1.25 | 0.44~ 0.65 | ||||||||
| SA335 P22 | 0.05~ 0.15 | ≤0.50 | 0.30~ 0.60 | ≤0.030 | ≤0.030 | 1.90~ 2.60 | 0.87~ 1.13 | ||||||||
| SA335 P5 | ≤0.15 | ≤0.50 | 0.30~ 0.60 | ≤0.025 | ≤0.025 | 4.00~ 6.00 | 0.45~ 0.65 | ||||||||
| SA335 P91 | 0.08~ 0.12 | 0.20~ 0.50 | 0.30~ 0.60 | ≤0.020 | ≤0.010 | 8.00~ 9.50 | 0.85~ 1.05 | ≤ 0.40 | 0.18 ~0.25 | ≤ 0.015 | 0.06~ 0.10 | 0.03~ 0.07 | |||
| SA335 P92 | 0.07~ 0.13 | ≤0.50 | 0.30~ 0.60 | ≤0.020 | ≤0.010 | 8.50~ 9.50 | 0.30~ 0.60 | ≤ 0.40 | 0.15~ 0.25 | ≤ 0.015 | 1.50~ 2.00 | 0.04~ 0.09 | 0.03~ 0.07 | ||
| DIN 17175 | ST45.8/III | ≤0.21 | 0.10~ 0.35 | 0.40~ 1.20 | ≤0.040 | ≤0.040 | ≤0.30 | ||||||||
| 15Mo3 | 0.12~ 0.20 | 0.10~ 0.35 | 0.40~ 0.80 | ≤0.035 | ≤0.035 | 0.25~ 0.35 | |||||||||
| 13CrMo44 | 0.10~ 0.18 | 0.10~ 0.35 | 0.40~ 0.70 | ≤0.035 | ≤0.035 | 0.70~ 1.10 | 0.45~ 0.65 | ||||||||
| 10CrMo910 | 0.08~ 0.15 | ≤0.50 | 0.30~ 0.70 | ≤0.025 | ≤0.020 | 2.00~ 2.50 | 0.90~ 1.10 | ≤0.30 | ≤ 0.30 | ≤ 0.015 | |||||
| EN1021 6-2 | 15NiCuMoNb5-6-4 (WB36) | ≤0.17 | 0.25~ 0.50 | 0.80~ 1.20 | ≤0.025 | ≤0.020 | ≤0.30 | 0.25~ 0.50 | 0.50~ 0.80 | 1.00~ 1.30 | ≤0.05 | 0.015~ 0.045 | |||
