This standard specifies the purchase order requirements,manufacturing techniques,technical requirements,inspection rules,test methods,acceptance and delivery for heavy steel castings.
This standard is applicable to the heavy steel castings of sand casting and casting mold casting which has equivalent thermal conduction with sand mold.
定价: 288元 / 折扣价: 245 元 加购物车
This standard specifies the order requirements,manufacturing processes,technical requirements,inspection rules,testing methods,acceptance,quality certificates,markings and packaging of large exposed gear steel castings.
This standard is applicable to the ordering,manufacturing and inspection of large exposed gear steel castings produced with sand casting process and in the way of exposed drive.
定价: 372元 / 折扣价: 317 元 加购物车
This part of GB/T 37400 specifies the order requirements,manufacture processes,technical requirements,inspection rules,test methods,retest and re-heat treatment,quality certificates,markings and packaging of carbon steel and low alloy steel castings for heavy machinery.
This part is applicable to the carbon steel or low alloy steel castings cast in sand mould or casting mould with equivalent thermal conductivity.
This part is not applicable to the casting of high manganese steel,heat resistant steel,stainless steel and other non-structural steel grades.
定价: 288元 / 折扣价: 245 元 加购物车
This part of GB/T 37400 specifies the scope of defects requiring repair welding, technical requirements for preparations before welding, technical requirements for repair welding, postweld stress relief annealing treatment and inspection of steel castings.
This part is applicable to repair welding before finish machining of carbon steel, low alloy steel and high manganese steel casting defects.
定价: 252元 / 折扣价: 215 元 加购物车
This part of GB/T 37400 specifies the nondestructive testing methods of steel castings used for heavy machinery (including the ultrasonic testing,radiographic testing,penetrant testing and magnetic particle testing),as well as the general requirements and the quality classifications of relevant testings.
This part is applicable to:
—Type A pulse echo method of ultrasonic testing used for alloyed and nonalloyed ferrite steel castings with wall thickness ≤600 mm which have been heat treated.If there are no other standards for steel castings with wall thickness >600 mm,this Specification may be used as reference.
—The radiographic testing of steel castings with the thickness ≥5 mm.
—The magnetic particle testing for the defects on the surface and near the surface of the ferromagnetic steel castings.
—The penetrant testing for open defects on the surface of steel castings.
—The magnetic particle testing and the penetrant testing for defects of the remov
定价: 756元 / 折扣价: 643 元 加购物车