No.

Name of goods

Grade

Specification

Standard

Application

OD(mm)

W/T(mm)

LENGTH

1

High temperature seamless carbon steel nominal pipe

A

21-219

2-20

≤12m

ASTM A106

Used for maching of bending, border-coiling and  similar shape-forming

B

2

Non plating coating and hot dipping galvanizing welded and seamless nominal steel pipe

A

21-219

2-20

≤12m

ASTM A53

Applied as pressed and forced parts and pipeline for steam ,water ,gas and atmosphere

B

3

Seamless cold drawing carbon steel tube for heat exchanger and condenser

A179

21-219

2-20

≤12m

ASTM A179

Used for tubed exchanger, condenser and other heat conveying equipment

4

High pressure seamless carbon steel boiler tube

A192

21-219

2-20

≤12m

ASTM A192

Used for high pressure min wall thickness seamless carbon steel boiler and  superheater tube

 5

Seamless medium-carbon steel boiler and superheater tube

A-1

21-219

2-20

≤12m

ASTM A210

Used for boiler and boiler flue tubes and min wall thickness  seamless

medium-carbon steel tube for superheater

C

6

Boiler tube

ST35.8

21-219

2-20

≤12m

DIN17175

Used for the pipelines for boiler industry

ST45.8

7

Steel pipe for pipeling,vessel and equipment structure

ST37

21-219

2-20

≤12m

DIN1629

Used for manufacturing pipelining,vessel,equipment,pipe fittings and steel structure

ST44

8

Carbon steel pipe for pressure pipeline,

high pressure application and high temperature application

STPG370

21-219

2-20

≤12m

JIS3454

Used for pressure pipeline under 350

STS370

JIS3455

Used for pressure pipeline under 350

STPT370

JIS3456

Used for pipeline over 350

9

Carbon steel tube for

general structural

STB340

21-219

2-20

≤12m

JIS3444

Used for manufacturing general structure

STB410

STB510

10

Carbon steel pipe for boiler and heat exchanger service

STB340

21-219

2-20

≤12m

JIS3461

Used for boiler and heat exchanging inside outside tube