Standard

ASTMB338 ASTMB337 ASMESB338 ASMESB337 ASTMB861 DIN17861

  Grade

 1 2 3 9 12

 Cold –rolled

 OD 3—114mm

WT 0.5-5.5mm

OD 3—15mm  4,000mm maxL

OD over 15mm  12,000mm maxL

Finish , cold rolled and annealed in Vacuum annealing furnace

 Extruded

OD 25-210mm

WT 4-30mm

L 1000-10000mm

Welded

OD 10-40mm

WT 0.5-2.5mm

L 20,000mm

Test

Flattening test tension test flaring test

Hydrostatic test NOD test . finish tube

are subject to external surface visual inspection Hydrostatic Ultrasonic test on both the internal or external surface .

Test methord

ASTMA370 ASTME8

Sorts

Seamless tube welded tube extruded tube

Usage

Heat exchanger  condenser  bicycle frame  

titanium exhaust pipe etc 

Grade

Condition

Manufacturing Method

OD

Wall  Thickness

Long

Standard

Gr1

Gr2

Annealed

Cold rolling

Seamless

10-15MM

0.5-4.5 MM

500-4000MM

ASTM B337

ASTM B338

15-20MM

0.6-2.5 MM

500-9000MM

20-30MM

0.6-2.5 MM

30-40MM

1.0-2.5 MM

40-50MM

1.5-3.0 MM

50-60MM

1.5-3.5 MM

60-80MM

2.0-4.5 MM

Welded

16MM

0.5-1.0 MM

500-15000MM

19MM

0.5-1.25MM

25  27MM

0.5-1.5 MM

500-6000MM

31  32  33MM

0.8-2.0 MM

38MM

1.5-2.5 MM

500-4000MM

50MM

2.0-2.5 MM

63MM

2.0-2.5 MM

Welded

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Rolling

6-10MM

0.5-1.25 MM

500-8000MM

10-15MM

0.5-1.5 MM

15-20MM

0.5-2.0MM

500-5000MM

20-25MM

0.5-2.0 MM

25-30MM

0.5-2.0MM