Additional Condition:
UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.
GB/T 8162 20# Steel Chemical Composition:
Structure tube chemical compositon |
|||||||||
Standard |
Grade |
C |
Si |
Mn |
P< |
S< |
Cu< |
Ni< |
Cr< |
GB/T8162 |
20# |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
GB/T 8162 20# steel Mechanical Property:
Grade |
Yield Strength (Mpa) |
Tensile Strength (MPa) |
Elongation (%) |
||
20# |
≤16mm |
＞16mm-30mm |
≥30mm |
≥390 |
≥20 |
≥245 |
≥235 |
≥225 |
|||
GB/T 8162 20# steel Application:
Used in general structure and mechanism, including construction, machinery , transportation , aviation ,petroleum mining and each kind of structure tubes.
Source:
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