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Polished steel pipe

What is Polished steel pipe?

Polished steel pipe is a kind of pipe, which has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, good hot workability such as stamping and bending, no heat treatment hardening phenomenon (non magnetic), molybdenum content and low carbon content. Its resistance to spot corrosion in marine and chemical industrial environment is significantly better than 304 stainless steel (316L low carbon, 316N nitrogen high strength, 316 stainless steel high sulfur content, easy to cut stainless steel)
Polished steel pipe is divided into electrolytic polishing and mechanical polishing of stainless steel pipe.
The polishing process of stainless steel pipe is actually the process of cutting the pipe surface. The pipe surface is cut by using the friction between the polished material, the polished instrument and the pipe surface to obtain the corresponding polished surface. The light of stainless steel pipe can be divided into internal and external light. The existing external light is to use the combination of hemp wheel or abrasive wheel with different coarse grain size to light and obtain the corresponding polished surface.
The inner part is to cut the inner surface of the pipe by reciprocating or rotating movement of the plastic grinding head (covered with emery cloth) inside the pipe. The light of stainless steel pipe can be divided into wet and dry. Check whether the polishing tube is not straight. The polishing tube bends in the same direction (close to the weld bead), which is the problem of pipe making, that is, the height of the weld bead or the thickness of the material. The bending is not uniform, which is due to polishing and linear adjustment problems.

Polished steel pipe of chemical composition

Chemical Material Composition of SS 304 seamless pipes
Grade Mn C P Si Cr S Ni Mo N
Stainless Steel 304 Seamless Pipe minimum 18 8
maximum 2 0.08 0.045 0.75 20 0.03 10.5 0.1

Polished steel pipe of mechanical property

Yield Strength of asme sa312 grade 304 pipes
Grade Strength of Yield 0.2% Proof (MPa) minimum Elongation (% in 50mm) minimum Strength of Tensile (MPa) minimum Pipes Hardness
Brinell (HB) maximum Rockwell B (HR B) maximum
Stainless Steel 304 Seamless Pipe 205 40 515 201 92

Polished steel pipe of Product Introduction

item

value

Standard

AiSi

Place of Origin

China

Shandong

Brand Name

Kuaima

Model Number

Polished steel pipe

Type

Seamless

Steel Grade

200 Series

Application

petroleum, chemical industry, mechanical equipment

Welding Line Type

Spiral Welded

Tolerance

±1%

Processing Service

Bending, Welding, Decoiling, Punching, Cutting, Moulding

Grade

200 Series

Section Shape

Round

Alloy Or Not

Is Alloy

Steel Grade

301L, S30815, 301, 304N, 310S, S32305, 410, 204C3, 316Ti, 316L, 441, 316, L4, 420J1, 321, 410S, 410L, 436L, 443, LH, L1, S32304, 314, 347, 430, 309S, 304, 439, 204C2, 425M, 409L, 420J2, 436, 445, 304L, 405, 370, S32101, 904L, 444, 301LN, 305, 429, 304J1, 317L

Surface Finish

BA

Invoicing

by actual weight

Delivery Time

15-21 days

Product name

Stainless Steel Pipe/tube 304pipe Stainless Steel Seamless

Shape

Round.square.Rectangle

Technique

Cold Rolled Hot Rolled

Material Grade

201/202/302/304/304L/310/314/314L/316/316L/430/409/321

Length

1-12m

Surface

BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D

Usage

Construction Structure

Thickness

0.1mm-60mm

Features

Corrosion Resistance

Package

Seaworthy Standard Package

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