Classification of common metal pipe materials and comparison table of domestic and international standards

Thread Content

(1) Classification of metal pipe materials The classification of metal pipe materials by material is shown in Table 1. Table 1 Classification of Metal Pipe Materials. The major categories are further divided into subcategories; below are the names of pipes along with examples. Metal pipes: Iron pipes, cast iron pipes – pressure-bearing cast iron pipes (sand-cast centrifugal cast iron pipes, continuous cast iron pipes). Steel pipes: Carbon steel pipes, B3F welded steel pipes, seamless steel pipes made from grade 10 and 20 steels, high-quality seamless carbon steel pipes. Low-alloy steel pipes: 16Mn seamless steel pipes. Alloy steel pipes: Heat-resistant steel pipes (such as 15CrMo). Stainless steel pipes: Austenitic stainless steel pipes (such as 0Cr18Ni9). Non-ferrous metal pipes: Copper and copper alloy pipes – drawn and extruded brass pipes, copper pipes, copper-nickel alloys (such as Monel). Lead pipes: Lead pipes, lead-antimony alloy pipes. Aluminum pipes: Cold-drawn aluminum and aluminum alloy round pipes, hot-extruded aluminum and aluminum alloy round pipes. Titanium pipes: Titanium pipes and titanium alloy pipes (Ti-2Al-1.5Mn, Ti-6Al-6V-2Sn-0.5Cu-0.5Fe). (II) Classification of Non-Metallic Pipe and Liner Materials. The classification of non-metallic pipe and liner materials by material is shown in Table 2. Table 2 Classification of non-metallic pipes and lined pipe materials
Main categories / Subcategories / Pipe names / Examples
Non-metallic pipes: Rubber pipes – air delivery rubber hoses, water delivery/absorption rubber hoses, oil delivery/oil absorption rubber hoses, steam rubber hoses. Plastic pipes – phenolic plastic pipes, acid-resistant phenolic plastic pipes, rigid PVC pipes, high- and low-density polyethylene pipes, polypropylene pipes, PTFE pipes, ABS pipes, PVC/FRP composite pipes, high-pressure polyethylene pipes. Asbestos cement pipes. Graphite pipes – impermeable graphite pipes. Glass pipes; Ceramic pipes – chemical industry ceramic pipes (acid-resistant ceramics, acid- and heat-resistant ceramics, industrial porcelain pipes). Fiberglass pipes – polyester fiberglass pipes, epoxy fiberglass pipes, phenolic fiberglass pipes, furan fiberglass pipes. Lined pipes: Rubber-lined pipes, steel-plastic composite pipes, plastic-coated steel pipes.
(III) Comparison table of commonly used pipe materials
A comparison of commonly used metallic pipe materials is shown in Table 3. Table 3: Comparison Table of Commonly Used Metal Pipe Materials
Steel grades | Chinese standard | GB | US standard | ASTM | German standard | DIN | Japanese standard | JIS
---|---|---|---|---|---|---|---|---
Carbon steel | GB/T 8163 | GB 9948 | 10A53-A | A105 | 1629 – st37 | STPG 370 |
| GB/T 8163 | GB 9948 | 20A53-B | A105 | 1629–st48.4 | STPG 410 |
| GB/T 8163 | GB 9948 | 20A106-B | A105 | 17175–st45.8 | STPT 410 |
| A106-C | -- | STPT 480 | GB 5130 | 20G | A106-B | 17155–st45.8 | III STS 410 |
| GB 6479 | 16Mn | -- | 17175–17Mn4 | STS 480 | GB 6479 | 10A105-A | A105 | 17175–st35.8 | STPT 370 |
Alloy steel | GB 9948 | GB 6479 | GB 5130 | 12CrMo | A335-P2 | A182-F2 | 17175–15Mo3 | STPA 20 |
| 15CrMo | A335-P12 | A182-F12 | 17175–13CrMo44 | STPA A22 | A335-P11 | A182-F11 | -- | STPA A23 | GB 6479 | GB 5130 | 12Cr2Mo | A335-P22 | A182-F22 | 17175–10CrMo910 | STPA 24 | A335-P9 | A182-9 | -- | STPA 26 |
Low-temperature steel | GB/T 8163 | GB 6479 | 16Mn | A333-Gr1,6 | A350-LF2 | 17173–TTSt35N | STPL 380 |
Stainless steel | GB/T 14976 | 0Cr18Ni9 | A312-TP304 | A182-F304 | 17458–X5CrNi1810 | SUS304 | TP A312-TP304H | A182-F304H | SUS304H |
| GB/T 14976 | 00Cr19Ni10 | A312-TP304L | A182-F304L | 17458–X2CrNi1911 | SUS304L |
| GB/T 14976 | 0Cr17Ni12Mo2 | A312-TP316 | A182-F316 | 17458－X5CrNiMo17122 | 17458－X2CrNiMo17132 | SUS316 |
| A312-TP316H | A182-F316H | SUS316H |
| GB/T 14976 | 00Cr17Ni14Mo2 | A312-TP316L | A182-F316L | SUS316L |
| GB 13296 | GB/T 14976 | 0Cr18Ni10Ti | A312-TP321 | A182-F321 | 17458 | SUS321 |
| A312-TP321H | A182-F321H | SUS321H |
| 0Cr18Ni11Nb | A312-TP347H | A182-F347H | SUS347H |
| GB/T 14976 | 0Cr19Ni13Mo3 | A312-TP317 | 17458 | X5CrNiMo17133 | SUS317 |
| 00Cr19Ni13Mo3 | A312-TP317L | 17458 | X2CrNiMo18143 | SUS317L |

Note: ① This comparison table is compiled based on the criteria that either both the chemical composition and mechanical properties are similar, or one of them is similar while the other is basically similar. Steels of the same grade can be used interchangeably. ② In cases where there are special requirements, a further detailed comparison should be made to determine whether a substitute is possible.