Q550D High Strength Steel Plate
Q550D high-strength steel plate is a D-grade steel plate with a yield strength of 550MPa, designed for low-temperature high-strength structural parts, engineering machinery and mining steel structural parts.
Common specifications of Q550D alloy steel plate include thickness 8-100mm (or customized according to customer needs), width 2000-3000mm, etc.; Q550D high-strength alloy steel plate is usually delivered in a quenched and tempered state to obtain better mechanical properties.
Q550D high-strength plate has high strength, good toughness and low-temperature impact performance. It is widely used in construction, bridges, vehicles, ships, petrochemicals, mining and other fields to manufacture parts with high load-bearing capacity, wear resistance and impact resistance.
GNEE is a weathering steel plate supplier with 17 years of production experience. The high tensile steel plate we provide are strictly produced in accordance with the standards, passed the quality certification, can provide quality certificates, and accept third-party testing.
We can not only provide high strength low alloy steel of various specifications and sizes, but also A709 Grade 50 steel grade,high quality structures steel materials S355J2,EN 10025-6 S690QL1 steel plate. In addition, the products we provide can also provide size customization and various processing services according to your end-use needs.
Q550D (HSLA) Alloy Steel Plate Chemical Composition
| STEEL GRADE | C% max | Si% max | Mn% max | P% max | S% max | Cu% max | Cr% max | Ni% max | Mo % max | B % max | V % max | Nb% max | Ti % max |
| Q550D | 0.2 | 0.80 | 1.7 | 0.02 | 0.010 | 0.5 | 1.5 | 2 | 0.70 | 0.005 | 0.12 | 0.06 | 0.05 |
Q550D High Strength Low Alloy HSLA Steel Mechanical Property
| STEEL GRADE | Re yield strength Mpa min | Re yield strength Mpa min | elongation % | Energy and temperature | |||||||
| Min | 0 | -20 | -40 | -60 | |||||||
| t≤50 | 50-100 | 100-150 | t≤50 | 50-100 | 100-150 | J | J | J | J | ||
| Q550D | 550 | 530 | 490 | 640-820 | 640-820 | 590-770 | 16 | 47 | 47 | 34 | 34 |
| Product Name | High Strength Low Alloy Steel Plate |
| Length | 1m-12m or as required |
| Width | 1m-3m or as required |
| Thickness | 8mm-150mm or as required |
| Standard | ASME,ASTM,DIN,JIS,GB,EN,etc. |
| Technique | Hot rolled |
| Surface Treatment | Clean, blasting and painting according to customer requirement |
| Thickness tolerance | ±0.1mm |
| Material |
ASTM:A573 Grade 70,A709 Grade 50,A514 Grade B,etc. ASME:SA573 Grade 70,SA709 Grade 50,SA514 Grade B,etc. EN:S355JR,S355J0,S355K2,S355N,S355J2,S420N,S460N, S460Q,S460QL,S500Q,S500QL,S550Q,S500QL,S690Q, S690QL,S690QL1,S890Q,S890QL,S890QL1,S960Q,S960QL,etc. DIN:ST52-3,etc. JIS:SS490,SS540,SM490,etc. GB:Q355B,Q355D,Q390B,Q390D,Q420B,Q420D, Q460D,Q460E,Q500D,Q500E,Q550D,Q550E, Q620D,Q620E,Q690D,Q690E,Q890D,Q890E,Q960D,Q960E,etc. |
| MOQ | 1tons.We also can accept sample order. |
| Shipment time | Within 15-30 workdays after receiving deposit or L/C |
| Export packing | Waterproof paper, and steel strip packed. Standard Export Seaworthy Package.Suit for all kinds of transport,or as required |
