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A572 Grade 65简介

牌号 A572 Grade 65
其他名称
对应标准 ASTM A572/A572M-2018
高强度低合金钴钒结构钢技术规范
Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel
归类 合金钢
性能 强度
A572 Grade 65 化学元素成分含量(%)
成分 C Si Mn ②③ P S Cu Nb 更多
Type 1 最小值 - - - - - - 0.005 /
最大值 0.23 0.4 1.65 0.03 0.03 0.2 0.05
成分 C Si Mn ②③ P S Cu V 更多
Type 2 最小值 - - - - - - 0.01 /
最大值 0.23 0.4 1.65 0.03 0.03 0.2 0.15
成分 C Si Mn ②③ P S Cu V Nb 更多
Type 3 最小值 - - - - - - 0.01 0.005 V+Nb:0.02~0.15⑦
最大值 0.23 0.4 1.65 0.03 0.03 0.2 0.15 0.05
成分 C Si Mn ②③ P S Cu N Ti V 更多
Type 5 最小值 - - - - - - 0.003 0.006 - /
最大值 0.23 0.4 1.65 0.03 0.03 0.2 0.015 0.04 0.06
① Plates to 1-1/2 in. [40 mm] Thick, Shapes with Flange or Leg Thickness to 3 in. [75 mm] inclusive, Sheet Piling, Bars, Zees, and Rolled Tees: Si≤0.40% .
② Manganese, minimum, by heat analysis of 0.80 % (0.75 % by product analysis) shall be required for all plates over 3/8 in. [10 mm] in thickness; a minimum of 0.50 % (0.45 % by product analysis) shall be required for plates 3/8 in. [10 mm] and less in thickness, and for all other products. The manganese to carbon ratio shall not be less than 2 to 1.
③ Structural Shape Flange or Leg Thickness: >25~50mm,Carbon≤0.23%,Manganese≤1.65%;
Structural Shape Flange or Leg Thickness: ≤25mm,Carbon≤0.26%,Manganese≤1.35%;
④ maximum phosphorus content of 0.04 % and a maximum sulfur content of 0.05 % are permitted for the following materials: Structural shapes, Sheet piling, Bars, Plates with widlhs up to and including 15 in. [380 mm].
⑤ Nb:Product analysis limits = 0.004~0.06 %.
⑥ V:Product analysis limits = 0.005~0.17%
⑦ Nb+V:Product analysis limits = 0.01~0.16%. 碳当量计算
A572 Grade 65 机械性能
抗拉强度
σb
Mpa
屈服点
σs
Mpa
断后伸长率或延伸率
δ
%
≥550 ≥450 (in. 50mm)
≥17
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