Answer / pawan

Seamless pipe because in seamless pipe have no joint like
ERW pipe. seamless pipe are manufactured by forging
operations like extrusion,rolling etc these process add the
more strength in pipe.whereas ERW(Electric resistence
welded pipe) are manufactured by welding process so that
the strength of pipe may be reduced.

Answer / lisa

Seamless steel pipe used in the outer surface of the billet hot rolling process to eliminate defects can not only after the completion of the finished, polished off defects; For left after piercing spiral track, minus the wall in the process, can only be partially eliminated. ERW steel pipe hot rolled coil as raw material, coil surface quality is ERW pipe surface quality, and ease of hot-rolled coil surface quality control and the quality is higher, therefore ERW steel pipe and seamless steel surface quality is far superior. for more, please visit the website: http://www.hnssd.com

Which furnace burns low-ash fusion coal and retains most of the coal ash in the slag?

0 Answers  

---

what is thermocouple

8 Answers   MAHINDRA,

---

• If you had enough money to retire right now, would you?

1 Answers   Petro Star Mount,

---

Enthalpy and entropy are functions of one single parameter. Which is that ?

0 Answers  

---

1>what is the material of ball bearing?

11 Answers   MAHINDRA,

---

What is the thermal efficiency of a diesel engine?

0 Answers   RRB,

---

what is the means of stress

8 Answers   Claris Lifesciences,

---

whether supercharger is used in si engine or not?if it is used then at which destination?

1 Answers  

---

TRANSACTION CODE FOR GR/IR ACCOUNT CLEARING WITH POSTING DATE OF GR (MATERIAL DOCUMENT POSTING DATE)TO CHECK ACTUAL CLEARING GR/IR CONTROLLING ACCOUNT

1 Answers  

---

What are the effects of carbon on the properties of steel?

0 Answers  

---

why boiler is closed system ?

0 Answers  

---

PLESE SEND ME OLD TECHNICAL N APPTITUDE QUESTION PAPERS

0 Answers   HPCL, TCS, Urjanet,

---