Steel Anchor Plate, Embedment ring plate, upper ring, lower ring, anchor ring for Wind Turbine Foundation System

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 Steel anchor ring plate, also called anchor plateupper ring and lower ringalignment ring and embedment ring, are one of a important accessory in WTG(wind turbine generatorfoundation anchor bolt cage system. This product is in the shape of a ring, with hundreds of holes on, and often produce separately due to its big size then splice them into a whole ring by specific rectangle steel plates. These kind of bearing plates are also used for other constructions such as steel structure and foundation anchor bolt which use our bolt’s stress properties.

        Most overseas customers are familiar with  some steel grades for anchor ring plates, for instance,  EN10025 S355JR, S355J0, S355J2, S355NL; ASTM A572/A572M Grade 50. Our Chinese GB/T 1591 Q355B, Q355C, Q355D, Q355NE steels are equivalent, and are acceptable by customers. 

 anchor ring drawing






















Commodity: Anchor Plate

Application: WTG foundation anchor bolt assembly

Origin: Anyang City, Henan Province, P. R. China

Brand: Anyang Longteng, or OEM

Segments: According to dawrings

Dimensions: According to drawings or specifications

Connected by: Splice Plate

Coating: Black, Single-face or double face zinc sprayed, painted, or as clients demands.

Steel Grade: Q355B, Q355C, Q355D, Q355NE


GB/T 1591-2018 GB/T 1591-2008 ISO 630-2: 2011 ISO 630-3 2012 EN 10025-2:2004 EN 10025-3:2004 EN 10025-4:2004
Q355B Q345B S355B S355JR
Q355C Q345C S355C S355J0
Q355D Q345D S355D S355J2
Q355NB Q345B(nomalized)
Q355NC Q345C(nomalized)
Q355ND Q345D(nomalized) S355ND S355N
Q355NE Q345E(nomalized) S355NE S355NL
Q355MB Q345B(TMCP)
Q355MC Q345C(TMCP)
Q355MD Q345D(TMCP)
Q355ME Q345E(TMCP) S355MD S355M
Q355MF S355ME S355ML


Grade Representation:

Steel grade is composed of such three parts as Chinese phonetic alphabet and numerical value of the yield strength and quality classification. For instance, Q345D; thereinto:

Q - is the first letter of the Chinese phonetic alphabet of the word “Qu” of the steel yield strength;

355 - is the numerical value of the yield strength(MPa);

D - is the quality classification; D grade.

CHEMICAL COMPOSITION OF Q355 anchor ring plate, unit:%

Steel Grade C   Si   Mn   P   S   Cr   Ni   Cu
≤40 >40
Q355B ≤0.24 ≤0.55 ≤1.60 ≤0.035 ≤0.035 ≤0.30 ≤0.30 ≤0.40
Q355C ≤0.20 ≤0.22 ≤0.030 ≤0.030
Q355D ≤0.20 ≤0.22 ≤0.025 ≤0.025
Q355NE ≤0.18 ≤0.55 0.9~1.65 ≤0.025 ≤0.020 ≤0.30 ≤0.50 ≤0.40



Steel Grade Yield strength Tensile Strength, Rm
Steel level Quality level Nominal Thickness or diameter, mm
≤16 >16~40 >40~63 >63~80 >80~100 >100~150 >150~200 >200~250 >250~400 ≤100 >100~150 >150~250 >250~400
Q355 B,C 355 345 335 325 315 295 285 275 470~630 450~600 450~600
D 265 450~600


Grade Quality Grade Test Temperature, ℃ Impact absorbtion energy, J
12mm~150mm >150mm~250mm >250mm~400mm
Q345 B 20 ≥34 ≥34  
C 0
D -20 27
E -40



If you require any information or clarification, please do not hesitate to contact us.





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