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EP Tubes (electropolished tube) has stable chemical property, high pressure-proof ability, high strength widely used in special gas systems,medical devices,semi-conductor and liquid crystal industry.

 

一、Semiconductor Raw Material:

Ultra-Pure Stainless Steel AISI 316L

Principal Component Ratio(mass%)

Smelting Method      (*ppm)Chemical composition of ultra-high purity materials

 

C

Si

S

Mn

P

Cu

Cr

Ni

Mo

O*

N*

H*

SEMI F20

≤0.030

≤1.00

≤0.01

≤1.50

≤0.045

≤0.3

16.0~18.0

10.0~15.0

2.0~3.0

/

/

/

(VIM+VAR) SQ316L-Ⅰ

0.005

0.2

0.001

0.6

0.003

0.010

17.7

14.80

2.70

8

30

1

(VOD+VAR) SQ316L-Ⅱ

0.008

0.3

0.001

0.7

0.015

0.15

17.2

14.70

2.52

10

60

2

(EAF+VOD+LF) SQ316L-Ⅲ

0.011

0.38

0.006

0.9

0.02

0.19

16.70

13.6

2.13

30

120

3

(EAF+VOD) SQ316L-Ⅳ

0.021

0.42

0.007

0.9

0.02

0.25

16.15

10.08

2.13

40

150

5

Applications: Widely used in the manufacture of semiconductor products, ultra-high vacuum valve devices, filter housings and other stainless steels that require ultra-clean and ultra-low gas components.

( Key Technology: special smelting of VIM+VAR is used to reduce “non-metallic inclusion & gas composition ”  in the production of materials .)

 Nonmetallic Inclusions


Grade

ASTM-D Method(Worst Thin)

     0.5            1.0           1.5            2.0             2.5       (级)

SQ316L-Ⅰ

 

 

 

 

 

 

SQ316L-Ⅱ

 

 

 

 

 

 

SQ316L-Ⅲ

 

 

 

 

 

 

SQ316L-Ⅳ

 

 

 

 

 

 

 

二、 Bright Annealed Precision Tube

Designation: TP304L, TP316L etc

Standards: ASTM A269,ASTM A213,GB13296, JIS G3459

Size:

美标英制规格ASTM

美标规格ASTM

日表规格JIS

外径(OD)

壁厚(T)mm

外径(OD)mm

壁厚(T)mm

外径(OD)

壁厚/T  mm

外径OD(mm)

壁厚(T)mm

1/8”

0.5

3.18

0.5

       

1/4”

0.89

6.35

0.89

8A

1.24

13.8

1.24

3/8”

0.89

9.53

0.89

10A

1.24

17.3

1.24

1/2”

0.89

12.7

0.89

15A

1.65

21.7

1.65

1/2”

1.24

12.7

1.24

20A

1.65

27.2

1.65

1/2”

1.65

12.7

1.65

25A

1.65

34

1.65

5/8”

1.65

15.88

1.65

32A

1.65

42.7

1.65

3/4”

1.65

19.05

1.65

40A

1.65

48.6

1.65

1”

1.65

25.4

1.65

50A

1.65

60.5

1.65

1.5”

1.65

38.1

1.65

(Remark : Special Products Can Be Customized)

2”

1.65

50.8

1.65

2.5”

1.65

63.5

1.65

Technical Reference:

Ordinary BA Tube:

Raw materials are from WALSIN、YONGXING、Baosteel, TISCO

Inner surface roughness<Ra0.4um,

Package:loose package deburring at both side.

2、Clean BA Tube:

Raw materials are imported from overseas or domestic vacuum metling (VIM)

Inner surface roughness<Ra0.3um

Package: each pipe with plastic bag & cap, plan end

3、 Ultra-Pure BA Tube:

Raw materials are imported or domestic vacuum metling(VIM+VAR).

Inner surface roughness<Ra0.2um,clean wash.

Package :both end with caps and plastic bags after clearing & fulled with nitrogen gas in dust-fress room

 

三、Stainless Steel EP Tube

Designation: TP316L(S:0.005~0.012)

Standards:  ASTM A269& SEMEI F20-0706E, JIS G3459& SEMI F20-0706E , SEMI F19-0304,ASME BPE-2012

Size : 

 

美标规格ASTM

 

日表规格JIS

外径(OD)

壁厚(T)

外径(OD)mm

壁厚(T)mm

 

外径(OD)

壁厚(T)

外径(OD)mm

壁厚(T)mm

1/8”

0.5

3.18

0.5

         

1/4”

0.89

6.35

0.89

 

8A

1.24

13.8

1.24

3/8”

0.89

9.53

0.89

 

10A

1.24

17.3

1.24

1/2”

0.89

12.7

0.89

 

15A

1.65

21.7

1.65

1/2”

1.24

12.7

1.24

 

20A

1.65

27.2

1.65

1/2”

1.65

12.7

1.65

 

25A

1.65

34

1.65

5/8”

1.65

15.88

1.65

 

32A

1.65

42.7

1.65

3/4”

1.65

19.05

1.65

 

40A

1.65

48.6

1.65

1”

1.65

25.4

1.65

 

50A

1.65

60.5

1.65

1.5”

1.65

38.1

1.65

  (Remark : Special Products Can Be Customized)

2”

1.65

50.8

1.65

 

2.5”

1.65

63.5

1.65

 

1、 Ordinary BPE GRADE  EP Tube:

Raw Materials are from YONGXING, Baosteel,TISCO

Inner surface roughness<Ra0.25um,clean washing.

Package :  both end with caps and two-layer plastic bag after clearing & fulled with nitrogen gas in dust-fress room. (General gas pipeline use.)

2、Clean HP GRADE EP Tube:

Raw materials are imported or domestic vacuum metling (VIM) from domestic mills.

Inner surface roughness<Ra0.2um.

Electrolytic layer Cr/Fe ≥1.5 after electrochemical polishing & clean wash.

The thickness of the oxide layer is greater than or equal to 1.5nm, the CPT critical pitting temperature is greater than 25°C, and the resistivity is greater than or equal to 18 megohms after ultrapure water cleaning.

Package: both end with caps and two-layer plastic bag and after full with nitrogen gas in dust-free room. (Special gas pipeline use.)

3、Ultra-Pure UHP GRADE EP Pipe:

Raw materials are imported or domestic vacuum metling(VIM+VAR)

Inner surface roughness<Ra0.125um

Electrolytic layer Cr/Fe ≥1.5 after electrochemical polishing & clean wash

The thickness of the oxide layer is greater than or equal to 1.5nm, the CPT critical pitting temperature is greater than 30°C, and the resistivity is greater than or equal to 18 megohms after ultrapure water cleaning.

Package :both end with caps and two-lays plastic bag after clearing & fulled with nitrogen in dust-free room. (Special high purity corrosive gas pipeline use.)

 

四、Corrosion Resistant Alloy BA Pipe

Designation:Monel 400 (UNS N04400) ,UNS N02201  ;  inconel 600(UNS N06600), N6 (UNS N02200),incoloy UNS N08800 , UNS N08810,UNSN06025,UNS N08825 ,Hastelloy UNS N10276, UNS N06022,UNS N08811, UNS N06059,UNS N10001,UNS N10665, UNS N06625, UNS N08028,UNS N06690, UNS N06601, UNS N06455 etc.

Standards: GB15011,JB4742,ASME SB-161, ASME SB-163, ASME SB-165, ASME SB-167, ASME SB – 622

Size: (OD):3.18~114.3mm , (WT):0.5~7.11mm, (L):≤8000mm

Materials are from Sinosteel, Baosteel, Tisco

Inner roughness : Ra0.5um

Material designation:

Brand

GB

ASTM

DIN

BS

AFNOR

Incoloy 800

NS111

N08800

W.Nr.1.4876

NA15

Z8NC32.21

X10NiCrAlTi3220

Incoloy 800H

NS112

NO8810

W.Nr.1.4958

NA 15 (H)

 

X5 NiCrAlTi 31-20

Incoloy 800HT

 

N08811

W.Nr.1.4959*

   

X 8 NiCrAlTi 32-21

Incoloy 825

NS142

N08825

W.Nr.2.4858

NA16

NC21FeDu

NiCr21Mo

Inconel 600

NS312

N06600

W.Nr.2.4816

NA14

NC15FE

NiCrl 5Fe

Inconel 601

NS313

N06601

W.Nr.2.4851

 

NC23FeA

NiCr23Fe

Inconel 625

NS336

N06625

W.Nr.2.4856

NA21

NC22DNb

NiCr22Mo9Nb

Inconel 718

GH4169

N07718

W.Nr.2.4668

NA 51

NC19FeNb

NiCr19Fe19Nb5Mo3

Incoloy 926

 

N08926

W.Nr.1.4529

X1NiCrMoCu

X1NiCrMoCu

X1NiCrMoCu

Inconel X-750

GH4145

N07750

W.Nr.2.4669

 

NC15TNbA

NiCr15Fe7TiAl

 

Brand

GB

ASTM

DIN

BS

AFNOR

Monel 400

 

N04400

W.Nr.2.4360

NA 12

Nu 30

NiCu30Fe

Hastelloy B

Ns321

N10001

     

Hastelloy B-2

NS322

N10665

W.Nr.2.4617

 

NiMo28

NiMo28

Hastelloy C

NS333

       

Hastelloy C-22

 

N06022

W.Nr.2.4602

   

Hastelloy C276

NS334

N10276

W.Nr.2.4819

NC17D

 

NiMo16Cr15W

254SMO

 

S31254

W.Nr.1.4547

   

904L

 

N08904

W.Nr.1.4539

   

GH1140

GH1140

       

GH2132

GH2132

S66286

W.Nr.1.4890

   

Carpenter 20

NS143

N08020

W.Nr.2.4660

   

NiCr20CuMo

 

五、Hastelloy EP TUBE

5.1、Raw Materials for purity Hastelloy series :

Principal Component Ratio(mass%)

Material

Ni

Mo

Fe

Mn

C

Si

S

Cr

Ti

P

V

Co

W

UNS N10276

Rest

15.0-17.0

4.0-7.0

≤1.0

≤0.010

≤0.08

≤0.03

14.5-16.5

≤0.040

≤0.35

≤2.5

3.0-4.5

UNS N06022

Rest

12.5-14.5

2.0-6.0

≤0.5

≤0.015

≤0.08

≤0.02

20.0-22.5

≤0.020

≤0.35

≤2.5

2.5-3.5

UNS N06455

Rest

14.0-17.0

≤3.0

≤1.0

≤0.015

≤0.08

≤0.03

14.0-18.0

≤0.70

≤0.040

/

≤2.0

/

Application: Widely used in the manufacture of semiconductor products, ultra-high vacuum valve devices, filter housings, nuclear power, military and other super-corrosion, super-critical environments that require ultra-cleanliness and super corrosion resistance.

( Key Technology: special smelting of VIM+VAR is used to reduce “non-metallic inclusion & gas composition ”  in the production of materials .)

Nonmetallic Inclusions

GRADE

ASTM-D METHOD(Worst Thin)

 0.5        1.0        1.5        2.0       2.5       

S22(UNS N06022

 

 

 

 

 

 

S276(UNS N10276

 

 

 

 

 

 

 5.2、Hastelloy EP Tube

Standards:  ASME SB - 622& SEMEI F20-0706E, SEMI F19-0304,ASME BPE-2012

Size :

         

美标规格ASTM

 

日表规格JIS

外径(OD

壁厚(T

外径(OD

壁厚(T

 

外径(OD

壁厚(T

外径(OD

壁厚(T

1/4”

0.89

6.35

0.89

 

8A

1.24

13.8

1.24

3/8”

0.89

9.53

0.89

 

10A

1.24

17.3

1.24

1/2”

0.89

12.7

0.89

 

15A

1.65

21.7

1.65

1/2”

1.24

12.7

1.24

 

20A

1.65

27.2

1.65

1/2”

1.65

12.7

1.65

 

25A

1.65

34

1.65

5/8”

1.65

15.88

1.65

 

32A

1.65

42.7

1.65

3/4”

1.65

19.05

1.65

 

40A

1.65

48.6

1.65

1”

1.65

25.4

1.65

 

50A

1.65

60.5

1.65

1.5”

1.65

38.1

1.65

 

 

(Remark : Special Products Can Be Customized)

2”

1.65

50.8

1.65

 

2、Ordinary BPE GRADE EP Tube:

Raw Materials are imported and domestic Baosteel, TISCO.

Inner surface roughness<Ra0.25um,clean washing.

Package: both end with caps and two-layer plastic bags after clearing & full with nitrogen gas in dust-fress room. (General gas pipeline use.)

3、 Clean HP GRADE EP Tube:

Raw material are imported or domestic vacuum metling (VIM)

Inner surface roughness<Ra0.2um.

Electrolytic layer Cr/Fe ≥1.5 after electrochemical polishing & clean wash.

The thickness of the oxide layer is greater than or equal to 1.5nm, the CPT critical pitting temperature is greater than 35°C, and the resistivity is greater than or equal to 18 megohms after ultrapure water cleaning

Package:both end with caps and two-layer plastic bags after clearing & full with nitrogen gas in dust-fress room. (Special gas pipeline use.)

 

六、 EP FITTINGS

We can do any custom angles ( From 7° to 180°.)

( Factory Standards ): EN 10253-2 / 10253 – 4 Typ A and B,  DIN 2605 Part 1 and 2, ASME B16.9, production according to customer specification.

( Type of Elbow ):(long radius ) – 2D, 3D, 5D , (short radius ) – 2D, 3D, 5D, ( long radius & short radius – see center to center distance for further options )

(Materials):TP304L, TP316L, Inconel,Incoloy,Hastelloy

SIZE:1/4″~ 6″ roughnessRa0.2um

Precise BA tubes

 

 

 

 

EP Tubes Process

 

BA tubes-bright annealing tubes: Manufacture process is double melt + cold rolled + bright annealing + clean processing

EP tubes-electrolytic polishing tubes:Electric polish BA tubes.

stainless steel EP seamless tubes