Standard

DIN1629

Material

St52

OD

1/4"-40",13mm-1000mm

WT

SCH5,SCH10,SCH20,SCH40,SCH60,SCH80,SCH100,SCH120,SCH160,XXS

Usage

Structure Use,water transport,Building,Machinery,Traffic,Aviation,Oil development ect.

OD Tollerance

D<50mm,+-0.5mm ,D>50MM,+-1%

WT Tollerance

WT +-12.5%

Chemical

C:0.12-0.20%,Si:0.20-0.55%,MN:1.20-1.55%,P:<0.035%,S:<0.035%,Cu:<0.25%,Ni<0.25%,Cr:<0.25%

other test

HY,ET according to request

Length

2-12m Random,5.8M FIXED,6M FIXED,9M FIXED

Suface

Black paint as rusty protect

Ends

2"below plain ends,2" above beveled ends

Methord

140mm below cold drawn,140mm above hot rolled,273mm above hot expand