GBT 20Enquiry|Print this page
| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | 20 | GBT | China |
Chemical composition%of the ladle analysis of grade20
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Cu(%) |
|---|---|---|---|---|---|---|---|
| 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.25 | 0.3 | 0.25 |
| Proof strength Rp0.2(MPa) | Tensile strength Rm(MPa) | Impact energy KV(J) | Elongation at fracture A(%) | Reduction in cross section on fracture Z(%) | As-Heat-Treated Condition | Brinell hardness(HBW) |
|---|---|---|---|---|---|---|
| 344(≥) | 764(≥) | 11 | 21 | 23 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 441 |
| Property | Density kg/dm3 | Temperature T °C/F | Specific heat J/kgK | Thermal conductivity W/mK | Electric resistance µΩ·cm | Modulus of elasticity kN/mm2 | Expansion rate |
|---|---|---|---|---|---|---|---|
| 569(≥) | 461(≥) | 31 | 31 | 32 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 411 | |
| Temp. °C/°F | Creep strain limit (10000h) (Rp1,0)N/mm2 | Creep rupture strength (10000h) (Rp1,0)N/mm2 | |||||
| 172 | 871 | 238 |
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates/Sheets | Plates/Sheets | 0.08-200mm(T)*W*L | Forging,hot rolling and cold rolling | Annealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting |
| Steel Bar | Round Bar,Flat Bar,Square Bar | Φ8-1200mm*L | Forging,hot rolling and cold rolling,Cast | Black,Rough Turning,Shot Blasting, |
| Coil/Strip | Steel Coil/Steel Strip | 0.03-16.0x1200mm | Cold-Rolled&Hot-Rolled | Annealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting |
| Pipes/Tubes | Seamless Pipes/Tubes,Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion,Cold Drawn,Welded | Annealed,Solution and Aging,Q+T,ACID-WASHED |
| Grade | Standard | Country | Application |
|---|---|---|---|
| 0Cr25Ni20 | GBT | China | Oxidation resistance is better than 0cr23ni13. Mostly used as heat resistant steel |
| 201 | GBT | China | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| SA 201 | GBT | China | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| S20100 | GBT | China | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| 201L | GBT | China | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| S20103 | GBT | China | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| 2Cr25Ni20 | GBT | China | Seamless stainless steel tubes for boiler and heat exchanger |
| 2Cr20Mn9Ni2Si2N | GBT | China | Heat-resisting steel bars |
| 1Cr20Ni14Si2 | GBT | China | Heat-resisting steel sheets and plates |
| 1Cr25Ni20Si2 | GBT | China | Heat-resisting steel sheets and plates |
| 8Cr20Si2Ni | GBT | China | Heat-resisting steel bars |
| GH2018 | GBT | China | Classification and designation for superalloys and high temperature intermetallic materials |
| GH2036 | GBT | China | Classification and designation for superalloys and high temperature intermetallic materials |
| GH2038 | GBT | China | Classification and designation for superalloys and high temperature intermetallic materials |
| GH4220 | GBT | China | Nickel-base superalloy |
| 201 | GBT | China | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| ASTM 201 | GBT | China | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| T201LN | GBT | China | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| S20153 | GBT | China | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| S20161 | GBT | China | Austenitic Chromium Manganese Nickel Silicon Stainless Steel |
Relevant products
P20 tool steel round bar
NO8020 round bar
NO8020/No8031/N08367/NO8810/NO8825 Forging
1.2083 Forged Plate
H13(T20813) Tool Steel Flat Bar
1.4120 / X20CrMo13 Stainless Steel Coil
422(UNS S42200, 616, 1.4935) Stainless Steel Bar
X20CrMo13 / 1.4120 Martensitic Stainless Steel Strip, Coil Cold Rolled Annealed
Nimonic 80A / NiCr20TiAl(2.4952) / UNS N07080/ BS 3HR1
422 Stainless Steel Round Bar
X20CrMoV12-1(1.4923)+NT EN10216-2 Tube
D2(Cr12Mo1V1) Hot Rolled Plate
21CMoV5-7,1.7709,21CRMOV5-11,1.8070 Forgings
20 Steel Stock
| Steel grade | Dimension | Shape | Unit | Quantity | Delivery state | Query |
|---|---|---|---|---|---|---|
| 1.2083 Forged Plate | T:105-185mm*W:510*L | Plate or Sheet | Tons | 26 | Forged+QT | Enquiry |
| Stainless Steel 422 / Alloy 422 AMS 5655 UNS S42200/616/B4B Round Bar Stock | Select | 0 | Select | Enquiry |