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304H Stainless Steel Tube & Pipe

Seamless & Welded.
Cold Drawing, Cold Rolling, ERW, EFW, SSAW.
Equivalent Materials: SUS304H, DIN 1.4948, EN X6CrNi18-10.
Standard: ASTM/ASME/ANSI, JIS, DIN, EN, GOST, BS, GB.
Description

What is 304H Stainless Steel :

Stainless Steel 304H is a deformed product of 304 austenitic alloy with 18% chromium and 8% nickel. The carbon content of this product is controlled within 0.04-0.10, which improves the high temperature resistance of the product components in a temperature environment higher than 800°F. This alloy has a wide range of uses, with strong corrosion resistance and easy assembly.


Equivalent Materials of 304H Stainless Steel :

Grade


UNS
No


Japanese

British

DIN

JIS

BS

No

Name

304H

S30409

-

-

1.4948

X6CrNi18-10

304

S30400

SUS 304

304S31

1.4301

X5CrNi18-10

304L

S30403

SUS 304L

304S11

1.4307

X2CrNi18-9

304N

S30451

SUS 304N1

-

-

-


304H Stainless Steel Chemical Compositions Analysis:

Weight % (all values are maximum unless a range is otherwise indicated)

Grade

C

Mn

Si

P

S

Cr

Mo

Ni

N

304H

0.04-0.10

2.00

1.00

0.045

0.030

18.0-20

 

8.0-11

 

304

0.08

2.00

1.00

0.045

0.030

18-20

-

8.0-11

 

304L

0.030

2.00

1.00

0.045

0.030

18-20

-

8.0-13

 

304N

0.08

2.00

1.00

0.045

0.030

18.0-20

 

8.0-18

0.10-0.16


304H Stainless Steel Pipe & Tube Description:

Out Diameter(OD):

NPS 1/8"-3/4”-3”-6”-12”-20”-40”-80", DN6--DN200--DN500-DN2000, 4mm-21.3-48.3-168.3-355.6-508-762-2032mm, 0.375", 0.5", 1", 1.25".

Wall Thickness(W.T.):

0.7mm-50mm, Sch5S, SCH10S, SCH20, SCH40, Sch80, Sch XXS,

 0.035”, 0.065”, 0.083”, 0.89mm, 1.2mm, 1.65mm, BWG, SWG.

Length(L):

Fixed 6 meters, or other Length as Specified.

End:

Plain End, Bevel End.

Delivery Condition:

Annealed and Pickled, Bright Annealed, Polished(400#,600#), Hairline.

Inspection:

100% PMI, Hydrostatic Test, Eddy Current, Ultrasonic, X-Ray, Penetrant Test.

Mechanical Test:

Tension Test, Flattening Test, Flaring Test, Hardness Test, Impact Test.

Tolerance:

According to the Production Standard.

Packing:

By Bundles, Plywood Cases.

Marking:

YASE PIPELINE, Material Grade, Standard, Specification, Heat No., Lot No.

Mill Test Certificate:

According to EN 10204 3.2

Production Time:

2-30 Days, or up to the quantity.

Shipping:

By Sea, By Air, By Express.

MOQ:

100KGS.

Sample:

Free samples but freight charge paid by customer.

Customized:

Available.


YASE PIPELINE Manufacturing 304H Stainless Steel Products:

304H Stainless Steel Tubes & Pipes

304H Stainless Steel Seamless Pipe & Tubes

304H Stainless Steel Welded Pipe & Tubes

304H ERW/EFW Stainless Steel Pipe

304H Cold Drawing Seamless Stainless Steel Pipe

304H Cold Rolling Seamless Stainless Steel Pipe

304H Stainless Steel Boiler Tube

304H Stainless Steel Furnace Tube

304H Stainless Steel High Temperature Tube

304H Stainless Steel Square & Rectangle Tube

304H Stainless Steel Heat Exchanger Tube

304H Large Diameter Stainless Steel Pipe

304H Heavy Wall thickness Stainless Pipe


304H Stainless Steel Mechanical Properties:

Typical Values at 68°F (20℃)

Grade

Tensile Strength (MPa) min

Yield Strength (MPa) min


Elongation
 (% in 50mm) min


Hardness Max

Rockwell (HR B)

Brinell (HB)

304H

515

205

40

92

201

304

515

205

40

92

201

304L

485

170

40

92

201

304N

550

240

30

95

217


304H Stainless Steel Physical Properties:

Grade

Density kg/m3


Elastic Modulus
(a) GPa



Mean Coefficient of
Thermal Expansion (b)



Thermal
Conductivity



Specific Heat
0-100°C
J/kg.K


Elect. Resis- tivity nΩ.m


0-100°C
μm/m/°C



0-315°C
μm/m/°C



0-538°C
μm/m/°C



at 100°C
W/m.K



at 500°C
W/m.K


304H

8000

193

17.2

17.8

18.4

16.2

21.5

500

720

304

8000

193

17.2

17.8

18.4

16.2

21.5

500

720

304L

8000

193

17.2

17.8

18.4

16.2

21.5

500

720

304N

8000

196

17.2

17.8

18.4

16.3

21.5

500

720


304H Stainless Steel Processing - Cold Forming:

The alloy is very ductile and can be easily formed

Helps increase the strength and hardness of the alloy

May make the alloy slightly magnetic


304H Stainless Steel Machinability:

Work hardening occurs during deformation

304H Stainless Steel Chip breaking:

Best results with slower speeds, heavier feeds, good lubrication and sharp tools.

304H Stainless Steel Most commonly used in: Refineries, Boiler, Heat exchanger, Condenser, Pipeline, Cooling Tower, Steam emissions, Power plant, Fertilizer plants, Chemical plants.



304H Stainless Steel Pipe Dimension Chart :


Nominal
Pipe Size


Outside Diameter (mm)

Nominal Wall Thickness Schedule (mm)

NPS

DN

OD


SCH
5s



SCH
l0s



SCH
40s


STD

SCH 40


SCH
80s


SCH XS

SCH 80

SCH XS

1/8

6

10.3

-

1.24

1.73

1.73

1.73

2.41

2.41

2.41

2.41

1/4

8

13.7

-

1.65

2.24

2.24

2.24

3.02

3.02

3.02

3.02

3/8

10

17.1

-

1.65

2.31

2,31

2.31

3.2

3.2

3.2

3.2

1/2

15

21.3

1.65

2.11

2.77

2.77

2.77

3.73

3.73

3.73

3.73

3/4

20

26.7

1.65

2.11

2.87

2.87

2.87

3.91

3.91

3.91

3.91

1

25

33.4

1.65

2.77

3.38

3.38

3.38

4.55

4.55

4.55

4.55

1 1/4

32

42.2

1.65

2.77

3.56

3.56

3,56

4.85

4.85

4.85

4.85

1 1/2

40

48.3

1.65

2.77

3.68

3.68

3.68

5.08

5.08

5.08

5.08

2

50

60.3

1.65

2.77

3.91

3.91

3.91

5.54

5.54

5.54

5.54

2 1/2

65

73

2.11

3.05

5.16

5.16

5.16

7.01

7.01

7.01

7.01

3

80

88.9

2.11

3.05

5.49

5.49

5.49

7.62

7.62

7.62

7.62

3 1/2

90

101.6

2.11

3.05

5.74

5.74

5.74

8.08

8.08

8.08

8.08

4

100

114.3

2.11

3.05

6.02

6.02

6.02

8.56

8.56

8.56

8.56

5

125

141.3

2.77

3.4

6.55

6.55

6.55

9.53

9,53

9.53

9,53

6

150

168.3

2.77

3.4

7.11

7.11

7.11

10.97

10.97

10.97

10.97

8

200

219.1

2.77

3.76

8.18

8.18

8.18

12.7

12.7

12.7

12.7

10

250

273.1

3.4

4.19

9.27

9.27

9.27

12.7

12.7

15.09

12.7

12

300

323.9

3.96

4.57

9.53

9.53

10.31

12.7

12.7

17.48

12.7

14

350

355.6

3.96

4.78

-

9.53

11.13

-

12.7

19.05

12.7

16

400

406.4

4.19

4.78

-

9.53

12.7

-

12.7

21.44

12.7

18

450

457.2

4.19

4.78

-

9.53

14.27

-

12.7

23.83

12.7

20

500

508

4.78

5.54

-

9.53

15.09

-

12.7

26.19

12.7


304H Stainless Steel Tube Dimension Chart :

Outside Diameter

Birmingham Wire Gauge (BWG)

20

18

16

15

14

13

Inch

Mm

 

 

 

 

 

 

(0.889 Mm)

(1.245 Mm)

(1.651 Mm)

(1.829 Mm)

(2.108 Mm)

(2.413 Mm)

Weight, Kg/M (Average Wall  )

 1/4

0.25

6.35

0.12

0.16

0.19

 1/3

0.313

7.95

0.15

0.21

0.25

0.28

 3/8

0.375

9.525

0.19

0.25

0.31

0.34

0.39

 1/2

0.5

12.7

0.25

0.34

0.45

0.49

0.55

0.61

 5/8

0.625

15.875

0.33

0.45

0.58

0.64

0.71

0.8

 3/4

0.75

19.05

0.4

0.55

0.72

0.77

0.88

0.98

 7/8

0.875

22.225

0.46

0.64

0.83

0.92

1.04

1.18

1

1

25.4

0.54

0.74

0.97

1.06

1.21

1.37

1 1/8

1.125

28.575

0.61

0.83

1.1

1.21

1.37

1.56

1 1/4

1.25

31.75

0.68

0.94

1.23

1.35

1.53

1.76

1 3/8

1.375

34.925

0.74

1.03

1.35

1.49

1.7

1.93

1 1/2

1.5

38.1

0.82

1.13

1.49

1.64

1.87

2.17

1 3/4

1.75

44.45

0.97

1.32

1.74

1.92

2.2

2.5

2

2

50.8

1.52

1.99

2.2

2.53

2.89

2 1/4

2.25

57.15

1.73

2.26

2.48

2.87

3.26

2 3/8

2.375

60.325

1.81

2.38

2.63

3.02

3.44

2 1/2

2.5

63.5

1.91

2.52

2.78

3.18

3.66

2 7/8

2.875

73.025

2.2

2.9

3.2

3.68

4.2

3

3

76.2

2.31

3.04

3.35

3.85

4.39

3 1/2

3.5

88.9

2.69

3.56

3.93

4.51

5.15

4

4

101.6

4.11

4.54

5.21

5.95


304H Stainless Steel Pipe & Tube Dimensions Tolerance Chart:

Dimensions Standard

Out Diameter(mm)

Wall Thickness(%)

Cutting Length(mm)

Size(mm)

Tolerance

Size(mm)

Tolerance

Tolerance

ASTM213

D<25.4

+0.10/-0.10

D<38.1

+20/0

D<50.8

+3.0/0

25.4~38.1

+0.15/-0.15

38.1~50.8

+0.20/-0.20

50.8~63.5

+0.25/-0.25

D≥38.1

+22/0

D≥50.8

+5.0/0

63.5~76.2

+0.30/-0.30

76.2~101.6

+0.38/-0.38

101.6~190.5

+0.38/-0.64

190.5~228.6

+0.38/-1.14

ASTM A269

D<12.7

+0.13/-0.13

 

+15/-15

 

+3.2/0

12.7~38.1

+10/-10

38.1~88.9

+0.25/-0.25

+4.8/0

88.9~139.7

+0.38/-0.38

139.7~203.2

+0.76/-0.76

ASTM A312

10.29~48.26

+0.40/-0.80

 

+12.5/-12.5

 

+6.0/0

48.26~114.30

+0.80/-0.80

114.30~219.08

+1.60/-0.80

219.08~457.20

+2.40/-0.80

ASTM A789

D≤12.7

+0.13/-0.13

 

+15/-15

 

+3.0/0

12.7~38.1

+10/-10

38.1~88.9

+0.25/-0.25

+5.0/0

88.9~139.7

+0.38/-0.38

139.7~203.2

+0.76/-0.76

ASTM A790

10.29~48.26

+0.40/-0.80

 

 

 

 

48.26~114.3

+0.80/-0.80

 

 

 

 

114.3~219.08

+1.60/-0.80

 

 

 

 

219.08~457.20

+2.40/-0.80

 

 

 

 

JIS G3459

D<30

+0.30/-0.30

S<2

+20/-20

 

+7.0/0

D≥30

+1%-1%

S≥2

+10/-10

 

EN17455-02

10~30

+0.30/-0.30

S≤3

+14/-14

1.0~3.0

+15.0/0

30~50

+4.00/-4.00

S>3

+12/-10

D>50

+9%/-9%

 

 

EN17456-02

6~10

+0.20/-0.20

0.5~1.0

+0.15/-0.15

 

+15.0/0

10~30

+0.30/-0.30

1.0~3

+14/-14

 

30~50

+4.00/-4.00

S>3

+12/-10

 

D>50

+0.90%-0.9%

 

 

 


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