♦ Size Range:
Thickness:1.2-400mm,
Width 50-4020mm,
Length 50-27000mm.
♦ Condition of delivery: According to user requirements, can be Hot rolled, normalizing, tempering, normalizing and tempering, quenching and other delivery.
♦ Standard: According to user requirements, can be delivered the following criteria: national standards, metallurgical industry standards, the United States ASTM, ASME standards, Japanese JIS, German DIN, British BS, European EN, the international ISO standards and the standards specific board and so on.
♦ Quality grade：A、B、C、D、E and through-thickness direction Z15、Z25、Z35.
♦ UT Standard:China standard(JB4730，GB/T2970)、ASTM(A435、A577、A588)、Japan(JISG0801、JISG0901)、German(SEL072)、British(BS5996)、France(NFS04-305)and so on the inspection test standard at china and abroad.
0.2 Structure Steel Plate for Wind Power Tower
1 Material: Q345C/D/E–Z15/Z25/Z35、S355-J0/J2/K2/NL
2 Table of Standard Comparisons:
| GB/T | ISO | ROCT | ASTM | JIS | EN10025 |
| Q345C | E335DD(4951) | 345 | Gr50(345)A572M | SPFC590 | S355J0 |
| Q345D | E335DD(4951) | 345 | Gr50(345)A572M | SPFC590 | S355J2 |
| Q345E | E335DD(4951) | \ | Gr50(345)A572M | SPEC590 | S355NL |
3 Technical Requirements: A: Good weld ability B: High liquid steel clarity C: Good material homogenizing D: High toughness E: Specified organizational structure
4.1 Chemical Composition of Steel Plate for Wind Turbine Tower:
| Grade | Chemical Composition % | ||||||||
| C | Si | Mn | P | S | Nb | Al | Carbon Equivalent | ||
| Q345 | C | ≤0.02 | ≤0.05 | ≤1.70 | ≤0.030 | ≤0.030 | ≤0.07 | ≥0.015 | ≤0.44 |
| D | ≤0.18 | ≤0.030 | ≤0.025 | ||||||
| E | ≤0.025 | ≤0.020 | |||||||
4.2 Mechanical Property of Steel Plate for Wind Turbine Tower:
| GRADE | ReH (MPa) YIELD STRENGTH | RmMPa TENSILE STRENGTH | A5(%)ELONGATION | LONGLV-NOTCHIMPACT(KV-2) | |||||
| ≤16mm | ＞16-40mm | ＞40-60mm | ≤40mm | ＞40-60mm | ℃ | J | |||
| Q345 | C | ≥345 | ≥335 | ≥325 | 470-630 | ≥21 | ≥20 | 0 | ≥34 |
| D | -20 | ||||||||
| E | -40 | ||||||||
| Product | Materials | Standard | Used |
| Low alloy high Strength plate | 12Mn,15MnVN,16Mn,15MnV 14MnNb Q295(A,B),Q345(A,B,C,D,E) Q390(A,B,C,D,E) Q420(A,B,C,D,E) Q460(C,D,E) Q500(D,E),Q550(D,E) Q620(D,E),Q690(D,E) SM490(A,B,C),SM490Y(A,B) SM520(B,C),SM570 St44-3,St52-3,St50-2 St60-2,St70-2 StE315,StE355,StE380 StE420,StE460,StE500 A572M(Gr42,50,60,65) A633M(A,B,C,D,E) S275(JR,JO,J2G3,J2G4) S355(JR,JO,J2G3,J2G4, K2G3,K2G4) E395,E335,E360 S275N,S275NL,S355N,S355NL S420N,S420NL,S460N,S460NL 50(A,B,C,D,DD,EE,F) 43(A,B,C,D,EE),55(C,EE,F) WH60,WH410LK(BB41BF) WH490LK(BB503) E355(DD,E),E460(CC,DD,E) E420(DD,E),E460(DD,E) E550(DD,E),E690(DD,E) Fe430(A,B,C,D) Fe510(B,C,D) WDB690,WDB780,WH70 WH80 |
GB1591 GB/T1591 GB/T16270 JIS G3106 JIS G3101 DIN17100 |
Manufacturing plants, general construction and all kinds of engineering machinery, such as mining and all kinds of engineering construction in the drill, excavator, electric wheel dump truck, mine car, excavators, loaders, bulldozers, cranes, hydraulic support in coal mine and other mechanical equipment and other structures. |