GB/T1591 Q420B Carbon and Low-alloy High-strength Steel Coil
GB/T1591 Q420B Carbon and Low-alloy High-strength Steel Coil Chemical Composition and Mechanical Property
|
C max |
Si max. |
Mn max |
P max |
S max |
Nb max. |
V max. |
Ti max |
Cr max |
Ni max |
Cu max |
N max |
Mo max | B max |
Ala min |
|
0.20 |
0.50 |
1.70 |
0.035 |
0.035 |
0.07 |
0.20 |
0.20 |
0.30 |
0.80 |
0.30 |
0.015 |
0.20 | - |
- |
| Yield Strength (MPa) min. (t≤16mm) | Yield Strength (MPa) min.(16mm<t≤25.4mm) | Tensile Strength (MPa) | Elongation % min. |
| 420 | 400 | 520-680 | 19 |
GB/T1591 Q420B Carbon and Low-alloy High-strength Steel Coil Application
GB/T1591 Q420B carbon steel coil is used in the Construction of Bridges, Highway Construction and Other Engineering construction.
GB/T1591 Q420B Carbon and Low-alloy High-strength Steel Coil Other Name
GB/T1591 Q420B structural steel, Q420B carbon steel coil, Q420B structural steel coil
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.
Other Terms
Packaging Details: Standard export seaworthy packing or as required.
Delivery Time: 30-50 days, 7 days for stock goods.
Loading Port: Shanghai ,Tianjin, Qingdao.
Offer Ability:5 000MT/Per Month.
MOQ: 1 Pcs.
Delivery Time: 30-50 days, 7 days for stock goods.
Loading Port: Shanghai ,Tianjin, Qingdao.
Offer Ability:5 000MT/Per Month.
MOQ: 1 Pcs.
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