JIS3445 Heat Exchanger Steel Tube STKM13A Precision Cold Drawn Seamless Stainless Steel Tube

JIS3445 Heat Exchanger Steel Tube STKM13A Precision Cold Drawn Seamless Stainless Steel Tube

Product Details:

Place of Origin: Changzhou
Brand Name: Joyruns
Certification: ISO9001
Model Number: STKM 13, 13A

Payment & Shipping Terms:

Minimum Order Quantity: 2Tons
Packaging Details: plastic packing, end caps, wooden box packing
Delivery Time: 20days
Payment Terms: L/C, T/T
Supply Ability: 2000Tons/Month
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Detail Information

OD Size: 6mm To 114.3mm WT: 0.8mm To 30mm
Type: Seamless Cold Drawning Precision Tube Grade: STKM 11, STKM 11A, STKM 12, STKM 13, STKM 13A
Standard: JIS G3445, Delivery Condition: +N, +NBK,+C,+LC,+BK,+A
High Light:

JIS3445 Heat Exchanger Steel Tube

,

STKM13A Heat Exchanger Steel Tube

,

30mm Cold Drawn Seamless Stainless Steel Tube

Product Description

JIS3445 STKM11A precision cold drawing seamless steel tube

This steel is standard for application in mechanical engineering and for general technical purpose

Precision tubes for hydraulic systems, automobiles, machinery, and other precision steel pipe, finish, cleanliness, there are areas of high mechanical performance requirements.

 

STKM13A Seamless tubes Chemical composition

Grade

Designation

Unit %

C

Si

Mn

P

S

Nb or V

Grade 13

A

STKM 13A

0.25 max.

0.35 max.

0.30~0.90

0.040 max.

0.040 max.

B

STKM 13B

JIS 3445 STKM 13A and STKM 13B Mechanical Properties:

Standard

Steel Grade

Tensile Strength (MPa)

Yield Point (MPa)

Elongation(%)

JIS G3445

STKM13A

≥375

≥215

≥30

STKM13B

≥440

≥305

≥20

 

Pipe Tolerance Table

Name

Rang(mm)

German Standard(mm)

Corporate Internal Control Standards(mm)

Special High-Precision(mm)

Outer Diameter

4-30

±0.08

±0.05

±0.03

 

31-40

±0.15

±0.05

±0.03

 

41-50

±0.20

±0.08

±0.03

 

51-60

±0.25

±0.08

±0.03

Wall thickness

0.5-7

±10%

±10%, Min±0.05

±10%, Min±0.03

Length

+/-10mm

Automotive industry pipe length can be cut according to customer requirements.

 

Heat treatment process delivery conditions:

Delivery Condition

Heat Treatment Process

+C

Cold drawn / hard. After the final cold forming no heat treatment.

+LC

Cold drawn/soft. After the final heat treatment-limiting deformation, cold drawn, allowing a degree of cold deformation

+SR

Steel heat treatment is applied after the last cold deformation process, the result of state steel after due process, the residual stress deformation and machining makes a certain degree of difficulty increases.

+A

In the final step of the steel pipe after cold deformation, placed in a controlled atmosphere furnace for annealing.

+N

In the final step of the steel pipe after cold deformation, placed in a controlled atmosphere furnace at a temperature above the phase transition point to continue annealing.


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JIS3445 Heat Exchanger Steel Tube STKM13A Precision Cold Drawn Seamless Stainless Steel Tube 3  JIS3445 Heat Exchanger Steel Tube STKM13A Precision Cold Drawn Seamless Stainless Steel Tube 4  JIS3445 Heat Exchanger Steel Tube STKM13A Precision Cold Drawn Seamless Stainless Steel Tube 5

JIS3445 Heat Exchanger Steel Tube STKM13A Precision Cold Drawn Seamless Stainless Steel Tube 6

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