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Offer Ability:5 000MT/Per Month GB/T1591 GB/T3274 Q345B low alloy high strength steel plates
Q345B low alloy high strength steel plates have 2 standards at present: GB/T1591 and GB/T3274. GB/T3274 is new version based on GB/T1591, but a lot of mills still conduct GB/T1591 at present.
Q345B low alloy high strength steel plates enjoy good comprehensive performance, low temperature performance, cold stamping performance, good weldability and machinability. BBN Q345B steel plates are widely used in bridges, vehicles, ships, buildings, pressure vessels and so on manufacture industry all over the world.
GB/T1591 GB/T3274 Q345B low alloy high strength steel plates chemical composition
|
Grade |
C % |
Si % |
Mn |
P % |
S % |
|
Q345B |
≤0.20 |
≤0.55 |
1.00-1.60 |
≤0.040 |
≤0.040 |
GB/T1591 GB/T3274 Q345B low alloy high strength steel plates mechanical property
|
Grade |
Thickness |
Yield Strength (Mpa) |
Tensile Strength |
Elongation |
Impact Energy |
|
|
(mm) |
(MPa) |
(%) |
Min |
|||
|
Q345B |
≤ 16 |
345 |
470-630 |
21 |
20 |
34J |
|
Q345B |
>16-35 |
325 |
470-630 |
21 |
20 |
34J |
|
Q345B |
>35 |
295 |
470-630 |
21 |
20 |
34J |
Q345B low alloy high strength steel plates are equivalent to DIN 17100 S355JR, ASTM A572Gr.50, EN10025-2 S355JR etc.Welcome to contact BBN steel for more information about those low alloy high strength steel plates, and BBN steel will share you more referencial information according to your project or use of Q345B low alloy high strength steel plates.
BBN Steel is specializing in GB/T1591 GB/T3274 Q345B low alloy high strength steel plates which is under GB/T specification.GB/T1591 GB/T3274 Q345B low alloy high strength steel plates has excellent mechanical properties and widely application. Combining above advantages can be supplied the most in line with customer requirements products. Moreover,we will provide cutting, pretreatment, galvanizing, testing, heat treatment services for GB/T1591 GB/T3274 Q345B low alloy high strength steel plates .If you want to known GB/T1591 GB/T3274 Q345B low alloy high strength steel plates more information,welcome to contact with us at any time: [email protected].
1.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.
2.Shipping department: a).Book shipping space b).Documents confirmation c).Shipping track d).Shipping case
3.Production control department: a).Technical evaluation b).Production Schedule c).Production Tracking d).Successfully complaint case
4.Quality control: a).Test in mill b).Inspection before Shipment c).Third Party Inspection d).About Package problem e).Quality problem case
5.Customers’ feedback and complaint: a).Quality feedback b).Service feedback c).Complaint d).Case
