20号厚壁无缝钢管工艺性能检验主要包括拉伸试验，冲击试验，硬度试验和液压试验。
20号厚壁无缝钢管规格表
114×12,152×25,219×65,377×24,114×14,152×30,219×70,377×28,
114×18,159×4.5245×8,377×30,114×20,159×6,245×10,377×37,121×4.5,
159×10,245×14,377×40,121×5
159×12,245×17,377×45,121×6,159×14,245×20,377×50,121×7,159×16
245×22,402×10,121×8,159×18,245×25,402×15,121×10,159×20,245×28
402×20,121×12,159×22,245×30,402×25,121×14,159×25
245×34,402×30,121×16,159×30,245×40,402×35,121×20,168×8,273×7
406×10,127×4.5,168×10,273×9
406×12,127×5,168×12,273×12,406×20,127×6,168×14,273×15
406×25,127×7,168×20,273×18,406×28,127×8,168×25,273×20,406×35,
127×10,168×30,273×25,406×40,127×12,168×35,273×30,426×10,127×14,
180×8,273×35,426×12,127×16,180×12,273×38,426×14,127×20,180×16,
273×40,426×16,133×4.5,180×25,273×45,426×20,133×6,180×30,273×50,
426×25,133×8,180×32,299×8,426×30,133×12,180×34,299×12,426×35,
133×14,180×38,299×16,426×40,133×16,180×40,299×20,450×10,133×18,
180×45,299×24,450×12,133×20,180×50,299×28,450×14,133×25,194×6,
299×30,450×16,133×30,194×8,299×32,450×20
