2022 China New Design Sanitary Elbows - Seamless carbon steel pipe/SMLS pipe – BESTOP
2022 China New Design Sanitary Elbows - Seamless carbon steel pipe/SMLS pipe – BESTOP Detail:
| Types | Application |
| Structure purposes | General structure and mechanical |
| Liquid services | Petroleum, gas and other fluids conveying |
| Low and medium pressure boiler tube | Steam and boiler manufacturing |
| Hydraulic pillar service | Hydraulic support |
| Auto semi-shaft casing | Auto semi-shaft casing |
| Line pipe | Oil and gas conveying |
| Tubing and casing | Oil and gas conveying |
| Drill pipes | Well drilling |
| Geological drilling pipe | Geological drilling |
| Furnace tubes,heat exchangers tubes | Furnace tubes, heat exchangers |
| Standard | Grades | Class |
| API | API 5L | Line pipe for pipeline transportation systems |
| API 5CT | Tubing and casing for wells | |
| API 5DP | Drill pipe for well drilling | |
| ASTM | ASTM A53 | Used as structural steel or for low-pressure plumbing |
| ASTM A106 | seamless carbon steel pipe for high-temperature service | |
| ASTM A335 | for seamless ferritic alloy-steel pipe for high-temperature service | |
| ASTM A213 | for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes | |
| ASTM A179 | for seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes | |
| ASTM A192 | for seamless carbon steel boiler tubes for high-pressure service | |
| ASTM A210 | for seamless medium-carbon steel boiler and superheater tubes | |
| ASTM A333 | for seamless steel pipe for low-temperature service and other applications with required notch toughness | |
| ASTM A519 | for seamless carbon and alloy steel mechanical tubing | |
| ASTM A252 | for seamless and welded steel pipe piles | |
| DIN | DIN 17175 | for heat resistant seamless steel pipe lines |
| DIN 1629 | for seamless circular tubes of non alloys steels wth special quality requirements | |
| DIN 2391 | for cold drawn or cold rolled precision seamless steel tubes | |
| JIS | JIS G3454 | seamless carbon steel pipe for pressure service |
| JIS G3456 | seamless carbon steel pipe for high temperature service | |
| JIS G3461 | seamless carbon steel pipe for boiler and heat exchanger | |
| EN | EN 10210 | for hot finished seamless structural hollow sections of non alloy steels |
| EN 10216 | seamless steel tubes for pressure purposes | |
| BS | BS 3059 | for carbonalloy and austenitic stainless steel tubes with specified elevated temperature properties |

| Pipe types | Pipe sizes(mm) | Tolerances |
| Hot rolled | OD<50 | ±0.50mm |
| OD≥50 | ±1% | |
| WT<4 | ±12.5% | |
| WT 4~20 | +15%, -12.5% | |
| WT>20 | ±12.5% | |
| Cold drawn | OD 6~10 | ±0.20mm |
| OD 10~30 | ±0.40mm | |
| OD 30~50 | ±0.45 | |
| OD>50 | ±1% | |
| WT≤1 | ±0.15mm | |
| WT 1~3 | +15%, -10% | |
| WT >3 | +12.5%, -10% |



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