Seamless Boiler and Heat Exchanger Alloy Tube

Seamless Boiler and Heat Exchanger Alloy Tube

Payment Type: L/C,T/T
Terms of Trade: FOB
Min. Order: 5 Ton
Delivery Time: 45 Days
 

Basic Info

Model No.: JIS G3462 STBA 12 STBA 13 STBA 20 STBA 22 

Additional Info

Packaging: oil antirust in hexagonal bundles or in carbons or woodenboxes

Productivity: 6000Ton/Year

Brand: Torich

Transportation: Ocean

Place of Origin: China

Supply Ability: 6000Ton/Year

Certificate: ISO 9001 ISO14001 TS 16949 ABS

Product Description

Details of Seamless Alloy Steel Pipe :

 

Material: Alloy Steel Steel Grade: STBA 12 STBA 13 STBA 20 STBA 22 STBA23 STBA 24 STBA 25 STBA 26 Etc
Produce Method: Electric Resistant Welding And Seamless Heat Treatment: Annealing, Isothermal Annealing, Full Annealing Etc
Standard: JIS G3462 Application: For Boiler And Heat Exchanger
Relevant Standard: KS D 3572 ASTM A 161 A209 A213 A199 DIN 17175 BS 3059

 

 

JIS G 3462 STBA 12  STBA 13  STBA 20  STBA 22  STBA23  STBA 24  STBA 25  STBA 26 Alloy Steel Boiler and Heat Exchanger

 

 

JIS G 3462 Alloy steel boiler and heat exchanger

Standard for Seamless Alloy Steel Pipe :JIS G 3462

Wall thickness    0.5-50mm  Diameter   5-420mm  Length        Upon request

 

Application of Seamless Alloy Steel Pipe: for boiler and heat exchanger

 

Seamless Alloy Steel Pipe Produce method:

               STBA 12,STBA13,STBA20,,STBA 22 :electric resistant welding

               STBA 25  STBA 26 :Seamless

 

Heat treatment of Seamless Alloy Steel Pipe:

              STBA 12,STBA13:Low temperature annealing,

                                             isothermal  annealing, full annealing,

                                             normalizing followed by tempering.

               STBA 20  STBA22: Low temperature annealing,

                                              isothermal annealing, full annealing,

                                              normalizing followed by tempering.

               STBA 23  STBA 24  STBA 25  STBA 26:Isothermal annealing,

              full annealing followed by tempering.

 

CHEMICAL COMPOSITION %  max

Steel grade

C

Si

Mn

P

S

Cr

Mo

STBA 12

0.10-0.20

0.10-0.50

0.30-0.80

0.035

0.035

-

0.45-0.65

STBA 13

0.15-0.25

0.10-0.50

0.30-0.80

0.035

0.035

-

0.45-0.65

STBA 20

0.10-0.20

0.10-0.50

0.30-0.60

0.035

0.035

0.50-0.80

0.45-0.65

STBA 22

0.15

0.5

0.30-0.60

0.035

0.035

0.80-1.25

0.45-0.65

STBA 23

0.15

0.50-1.00

0.30-0.60

0.035

0.030

1.00-1.50

0.45-0.65

STBA 24

0.15

0.5

0.30-0.60

0.035

0.030

1.90-2.60

0.87-1.13

STBA 25

0.15

0.5

0.30-0.60

0.035

0.030

4.00-6.00

0.45-0.65

STBA 26

0.15

0.25-1.00

0.30-0.60

0.035

0.030

8.00-10.00

0.9-1.10

 

 

MECHANICAL PROPERTIES min

Steel Grade

Tensile Strength Mpa

Yeild point or proof stress Mpa

Elongation %

OD 20mm and over

OD 10mm or over to and excl. 20mm

OD up to 10mm

STBA 12

380

205

30

25

22

STBA 13

410

205

30

25

22

STBA 20

410

205

30

25

22

STBA 22

410

205

30

25

22

STBA 23

410

205

30

25

22

STBA 24

410

205

30

25

22

STBA 25

410

205

30

25

22

STBA 26

410

205

30

25

22

 

Hardness

Steel Grade

Rockwell hardness HRB(Mean value of three points)

STBA 12

80max

STBA 13

81max

STBA 20

85max

STBA 22

85max

STBA 23

85max

STBA 24

85max

STBA 25

85max

STBA 26

89max

 

 

JIS G 3462 STBA 12 STBA 13 STBA 20 Alloy Steel Seamless Tube For Heat Exchanger / Boiler  JIS G 3462 STBA 12 STBA 13 STBA 20 Alloy Steel Seamless Tube For Heat Exchanger / Boiler

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Product Categories : Seamless Alloy Steel Tubes

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