Internally Ribbed Multi Rifled Seamless Boiler Tubes Cold Drawn
Internally Ribbed Multi-Rifled Bolier Tubes Seamless Cold Drawn Boiler Tubes For Water Wall Power Plant High Pressure
Internally Ribbed Multi-Rifled Bolier Tubes Seamless Cold Drawn Boiler Tubes For Power Generation And Energy Industry
Quick detail:
Material: 20G SA 192 A210 GrA1 15CrMo,12Cr1MoVG,T2,T12,T23,T91 etc
Application:Boiler ,Drill tubes
Standard:SA192 SA209 SA210 GrA1 SA213 EN10216,DIN1717 BS 3059 JIS3461,
GB/T 20409 GB/T 5310
Size:O.D:22-82.6mm
W.T.:4-16mm
Chemical compostions:
| Steel Grade | C | Mn | Si | Cr | Mo | S | P |
| 20G | 0.17-0.23 | 0.35-0.68 | 0.17-0.37 | ≤0.020 | ≤0.025 | ||
| SA210 A1 | ≤0.27 | ≤0.93 | ≥0.10 | ≤0.035 | ≤0.035 | ||
| SA210 C | ≤0.35 | 0.29-1.08 | ≥0.10 | ≤0.035 | ≤0.035 | ||
| SA213 T2 | 0.10-0.20 | 0.30-0.61 | 0.10-0.30 | 0.50-0.81 | 0.44-0.65 | ≤0.025 | ≤0.025 |
| SA213 T12 | 0.05-0.15 | 0.30-0.61 | ≤0.50 | 0.80-1.25 | 0.44-0.65 | ≤0.025 | ≤0.025 |
| 12CrMoG | 0.08-0.15 | 0.40-0.70 | 0.17-0.37 | 0.40-0.70 | 0.40-0.55 | ≤0.020 | ≤0.025 |
| 15CrMoG | 0.12-0.18 | 0.40-0.70 | 0.17-0.37 | 0.80-1.1 | 0.40-0.55 | ≤0.020 | ≤0.025 |
Mechanical properties at room Temperature
| Steel Grade | Rm/Mpa | ReL/Mpa | A | Akv/J |
| 20G | 410-550N/mm2 | 245N/mm2 | 24% | 35 |
| SA210 A1 | ≥415 | 255 | 30% | |
| SA210 C | ≥485 | 275 | 30% | |
| SA213 T2 | ≥415 | 205 | 30% | |
| SA213T12 | ≥415 | 220 | 30% | |
| 12CrMoG | 410-560 | 203 | 21% | 35 |
| 15CrMoG | 440-640 | 235 | 21% | 35 |
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There are two types of multi-lead rifled tubes Type:A and Type:B
with 30° helix anglr,these unique products can improve thermal efficiency by 30% in comparison to bare tubes.
It is used for power plant boilers,Multiple ribs greately increase the internal surface of the pipe compared to rib-less steel pipes,resulting in inreased boiler energy output efficiency.
Internally ribbed tubing helps to decrease mass flow ad ensures sufficient cooling for internal surfaces of tubes.
Common size:
60.3X7.5 8ribs
63.5X7.1 8ribs
Internally Multi-Lead Rifled Rifled Tube ,made by cold worked.
Raw material is from big steel mill like Bao Steel, ZhongTian, Shagang etc ,Tubes with several times cold worked.which has stable Mechanical properties on final product.
Key words:
Internally ribbed tube
multi lead rifled [MLR] tubes
Rifled boiler tube
Rifled tube
Torich Strength:
1. Torich is the STEEL TUBE MAKER company in China,playing a significant role in domestic market as well as international market.
2. Our products have exported to over 56 countries worldwide, winning a great fame among our customers.
3. There was no quality claim in the past 3 years.
4. First production was started since 1997, our boss worked in steel tube industry for over 10 years before started the own factory, factory engineers with over 30 years manufacturing experience, knowing well about production and inspection technology.
5. We have been exporting steel tubes since 10 years ago, and know well about international standard for steel tubes DIN/EN,ASTM,SAE,BS,GOST,JIS etc,also with great experience of International trading practices.
6. Our team take Timely action within 24 hours after receiving customers' first requirement and enquiry.
7. 100% prompt delivery in the past 3 years.
8. 100% dimensional check and 100% visual inspection on tube surfaces.
9. 100% eddy current test and ultrasonic test for detecting longitudinal and transversal defects.
10.Convenient tranportation: production location is 30 mins high speed train from Shanghai, 2 hours drive from Shanghai
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