China yepamusorosoro seamless simbi pombi mutengesi
| ASTM A53 Gr.B | Dema uye inopisa-yakanyikwa zinc-yakavharwa nesimbi pombi dzakakandwa uye dzisina musono | 
| ASTM A106 Gr.B | Seamless kabhoni simbi yepamusoro tembiricha sevhisi | 
| ASTM SA179 | Seamless inotonhora-inodhonzwa yakaderera-kabhoni simbi yekupisa exchanger uye condenser machubhu | 
| ASTM SA192 | Seamless kabhoni simbi boiler machubhu ekumanikidza kwakanyanya | 
| ASTM SA210 | Seamless Medium-carbon boiler uye superheater machubhu | 
| ASTM A213 | Seamless alloy-simbi boiler, superheater, uye kupisa-exchanger machubhu | 
| ASTM A333 GR.6 | isina musono uye welded kabhoni uye alloy simbi pombi yakagadzirirwa kushandiswa pane yakaderera tembiricha. | 
| ASTM A335 P9, P11, T22, T91 | Seamless ferritic alloy-simbi pombi yepamusoro-tembiricha sevhisi | 
| ASTM A336 | Alloy simbi forgings yekumanikidza uye yakakwirira-tembiricha zvikamu | 
| ASTM SA519 4140/4130 | Seamless kabhoni yemakanika tubing | 
| API Spec 5CT J55/K55/N80/L80/P110/K55 | Seamless simbi pombi nokuda casing | 
| API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70 | Seamless simbi pombi nokuda mutsetse pombi | 
| DIN 17175 | Seamless simbi chubhu yeakakwira tembiricha | 
| DN2391 | Cold drawn seamless prevision pipe | 
| DIN 1629 | Seamless circular unalloyed simbi machubhu pasi pezvinodiwa zvakakosha | 
Kemikari Inoumbwa uye Mechanical Properties
| Standard | Giredhi | Kemikari Zvikamu (%) | Mechanical Properties | |||||
| C | Si | Mn | P | S | Kusimba Simba (Mpa) | Yield Strength(Mpa) | ||
| ASTM A53 | A | ≤0.25 | - | ≤0.95 | ≤0.05 | ≤0.06 | ≥330 | ≥205 | 
| B | ≤0.30 | - | ≤1.2 | ≤0.05 | ≤0.06 | ≥415 | ≥240 | |
| ASTM A106 | A | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥415 | ≥240 | 
| B | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥485 | ≥275 | |
| ASTM A179 | A179 | 0.06-0.18 | - | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 | 
| ASTM A192 | A192 | 0.06-0.18 | ≤0.25 | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 | 
| API 5L PSL1 | A | 0.22 | - | 0.9 | 0.03 | 0.03 | ≥331 | ≥207 | 
| B | 0.28 | - | 1.2 | 0.03 | 0.03 | ≥414 | ≥241 | |
| X42 | 0.28 | - | 1.3 | 0.03 | 0.03 | ≥414 | ≥290 | |
| X46 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥434 | ≥317 | |
| X52 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥455 | ≥359 | |
| X56 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥490 | ≥386 | |
| X60 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥517 | ≥448 | |
| X65 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥531 | ≥448 | |
| X70 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥565 | ≥483 | |
| API 5L PSL2 | B | 0.24 | - | 1.2 | 0.025 | 0.015 | ≥414 | ≥241 | 
| X42 | 0.24 | - | 1.3 | 0.025 | 0.015 | ≥414 | ≥290 | |
| X46 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥434 | ≥317 | |
| X52 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥455 | ≥359 | |
| X56 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥490 | ≥386 | |
| X60 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥517 | ≥414 | |
| X65 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥531 | ≥448 | |
| X70 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥565 | ≥483 | |
| X80 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥621 | ≥552 | |
Kushivirira
| Mapombi marudzi | Pombi saizi(mm) | Kushivirira | 
| 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% | 
| Types | Application | 
| Zvinangwa zveChimiro | General chimiro uye michina | 
| Liquid Services | Petroleum, gasi uye zvimwe zvinwiwa zvinotakura | 
| Yakaderera uye Yepakati Pressure Boiler Tube | Steam uye boiler kugadzira | 
| Hydraulic Pillar Service | Tsigiro yeHydraulic | 
| Auto Semi-shaft Casing | Auto sem-shaft casing | 
| Line Pipe | Kufambisa mafuta negasi | 
| Tubing uye Casing | Kufambisa mafuta negasi | 
| Drill Pipes | Kuchera zvakanaka | 
| Geological Drilling Pipe | Geological drilling | 
| Machubhu echoto, machubhu ekupisa anopisa | Furnace tubes, heat exchangers | 
| Pombi yemvura inotonhorera | Steam/condensate pombi | Pombi yekupisa inopisa | Marine/offshore pombi | Kubvisa pombi | Industrial pombi | 
| Oiri uye gasi pombi | Pombi yekurwisa moto | Kuvaka / chimiro pombi | Pombi yekudiridza | Pombi yetsvina/sewage | Boiler tube | 
 
             








 
              
              
              
                             