Alloy Material Hot Rolled Steel Tube Medium Pressure Boiler
Application
Chrome Moly Pipe has become a standard in the power generation
industry and the petrochemical industry, not only because of its
tensile strength, corrosion resistance and high-temperature
strength, but also because of its cost-effectiveness. Grades P-11,
P-22 – P-91 & P-92 are prevalent grades for the power industry,
while P-5 & P-9 are the grades utilized in major refinery
processing.
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,
ST45.8/III, 15Mo3, 13CrMo44, 10CrMo910, 15NiCuMoNb5-6-4
4. Dimensional Tolerance
| Pipe types | OD (mm) | Tolerance | WT (mm) | Tolerance |
Hot- Rolled
Seamless Steel Pipe | 219~457 | ±1.0％ | ≤20 | -10% ~ +12.5% |
| 20~40 | -10% +10% |
5. Available Size
OD
(mm/inch) | Wall thickness(SCH) |
| 10 | 20 | 30 | STD | 40 | 60 | XS | 80 | 100 | 120 | 140 | 160 | XXS | 100mm | 120mm | 140mm |
| 355.6 (14'') | | | Δ | Δ | Δ | Δ | Δ | Δ | Δ | Δ | Δ | Δ | Δ | Δ | | |
6. 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 | / |
7. 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 | |
