HELLO,

Im analysing a U/G gas transmission line by ANSI B31.8. Existing line material is API 5L Gr.B. We are connecting the new(API 5l X52) line on that. Allowables for API 5l Gr. B is available in B31.8, but API 5L X52 dont have any value. I have kept Sh. & Sy. values as 358000 Kpa. is it correct. When i run this im receiving the warning 134E - "Material allowable/yield out of range on elememnt ---- to ----.code check may not be valid unless properties are manually set." . Line design temprature is 100 deg C. Where can i get the allowable stress value for API 5L X52. And also tell me what are all the governing load cases for ANSI B31.8