Sand Casting, Investment Casting and Die Casting in China

Carbon Steel WCB-Casting Material

WCB (UNS Code J03002) is covered by standard, which specification covers carbon steel castings for valves, fittings, flanges and other pressure-containing parts for high temperature service and the quality required for assembly with other castings or wrought steel parts by fusion welding. These grades are all “cast” grades meaning they are made through “casting” which is a manufacturing process where a liquid material is poured into a mold and allowed to harden.

WCB Chemical Requirements and Mechanical Property:

ASTM A216/a216M Standard Specification for Steel Castings, Carbon, Suitable for Fusion Welding for High Temperature Service.:
Carbon: 0.30max
Manganese: 1.00 max
Silicon: 0.60 max
Sulfur: 0.045 max
Phosphorus: 0.040 max
Copper: 0.30 max
Nickel: 0.50 max
Chromium: 0.50 max
Molybdenum: 0.20 max
Vanadium: 0.03 max
All total of those specified residual elements
Tensile Strength: 70-95ksi(485-655Mpa)
Yield Strength: 36ksi (250Mpa) min
Elongation in 2in. or 50mm: min 22.0%
Reduction of area: 35% min
Hardness: 137HB

WCB Ball Valve body

WCB Ball Valve body

WCB Heat treatment process: generally all castings need to be anneal or normalization.
Anneal at 890-910°
Normalization at 870-890 °C

WCB is also indicated In China standard of GB/T 12229 General Purpose Industrial Valve Specification of . The chemistry and mechanical property are same as A216 WCB. It is same as Chinese casting material of

Manufacture Process: Sand Casting or Precision Investment Casting.

Valve bodies/bonnet.

WCB may be welded

Preheat Not required.

What means of

WCB stands for “Wrought Carbon” with Grade B. Sometimes you can think “C” as casting.

there are 3 kind of Grade A,B & C which define the ductility & tensile strength.

Grade B is having very good ductility & tensile strength as compare to Grade A &

Filed under Material · Tagged with ,

Related Products

No find


One Response to “Carbon Steel WCB-Casting Material”

    this is helpfull about wcb material.

Can you leave us a feedback if the article is benefit to you?

Sand Casting, Investment Casting and Die Casting in China