GB/T 11251-2009 Translated English of Chinese Standard. (GBT 11251-2009, GB/T11251-2009, GBT11251-2009): Hot-rolled alloy structural steel platesThis standard specifies the order content, size, shape and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of hot-rolled alloy structural steel plates. This standard is applicable to hot-rolled alloy structural steel plates with a thickness greater than 4 mm ~ 30 mm. |
Contents
| 3 | |
Scope | 4 |
Order content | 7 |
Size shape and allowable deviation | 8 |
Test methods | 11 |
Inspection rules | 12 |
Packaging marking and quality certificate | 13 |
Common terms and phrases
25CrMnSiA and 30CrMnSiA absolute value allowable deviation alloy structural steel analysis of iron analysis of steels annealed band structure bending test blue spectrophotometric method chemical analysis chemical composition Determination of manganese determination of nickel Determination of phosphorus Determination of sulfur determination of vanadium dimethylglyoxime Elongation eqv ISO extraction photometric method flame atomic absorption heat treatment system Hot-rolled alloy structural Inspection and acceptance Inspection item Sampling Iron steel Macrostructure manganese content GB/T mechanical properties Metallic materials method after combustion Methods for chemical nickel content GB/T nominal thickness Order content photometric method GB/T piece Whole steel plate shall comply provisions of GB/T purchaser requirements of Table Sampling location Test shape and allowable sodium specimen spectrophotometric method GB/T steel and alloy steel plate delivered steel plates 25CrMnSiA steel products steels GB/T structural steel plates sulfur content supplier Tensile strength thickness greater titanium content GB/T vanadium content GB/T volumetric method Whole steel plate