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NK320 marine steel tube is used for marine boiler, super-heater and I, II, III grade pressure tubing tube manufacturing, and the manufacture of liquefied gas transportation and bulk chemical shipbuilding tube.

NK320 marine steel tube specifications-OD: 14-340mm, Thickness: 2-30mm

NK320 marine steel tube Mechanical Property:

Grade

Rm(MPa)

Re(MPa)

A(%)

320

320-440

≥195

≥25

NK320 marine steel tube chemical composition:

Grade

C

Si

Mn

P

S

Cr

Mo

Ni

320

≤0.16

≤0.35

0.40～0.70

≤0.035

≤0.035

≤0.25

≤0.10

≤0.30

Related products:NK360 marine steel tube, NK410 marine steel tube

JW steel keeps more than 10,000 tons hot rolled and cold rolled NK320 marine steel tube, NK320 shipbuilding steel in stock each month. We can meet our customer’s any quantity request. Based on these stock source, our advantage industry spread into steel process like: cutting ( any size and any shape ) drilling, welding, milling, machining and steel structure.