STKM13A JIS3445 Precision Seamless Steel Tube , 75*3.5MM Carbon Seamless Steel Pipe  Cold Drawing

STKM13A JIS3445 Precision Seamless Steel Tube , 75*3.5MM Carbon Seamless Steel Pipe Cold Drawing

Product Details:

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

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:

STKM 11 Precision Seamless Steel Tube

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STKM 11A Precision Seamless Steel Tube

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STKM 12 Carbon Seamless Steel Pipe

Product Description

JIS3445 STKM13A precision cold drawing seamless steel tube

Suitable for carbon steel pipe used in machinery, automobile, bicycle, apparatus and other mechanical parts.

 

STKM 13 Chemical Composition (WT%)

ST52 E355 STKM 13 C≤ 0.25 Si≤ 0.35 Mn0.30 - 0.90 P≤ 0.040 S≤ 0.040

 

Mechanical Properties:

Standard Steel Grade Tensile Strength (MPa) Yield Point (MPa) Elongation(%)
JIS G3445 STKM 13A ≥375 ≥215 ≥30
STKM 13B ≥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.

 

STKM13A JIS3445 Precision Seamless Steel Tube , 75*3.5MM Carbon Seamless Steel Pipe  Cold Drawing 0    STKM13A JIS3445 Precision Seamless Steel Tube , 75*3.5MM Carbon Seamless Steel Pipe  Cold Drawing 1  STKM13A JIS3445 Precision Seamless Steel Tube , 75*3.5MM Carbon Seamless Steel Pipe  Cold Drawing 2

 

STKM13A JIS3445 Precision Seamless Steel Tube , 75*3.5MM Carbon Seamless Steel Pipe  Cold Drawing 3  STKM13A JIS3445 Precision Seamless Steel Tube , 75*3.5MM Carbon Seamless Steel Pipe  Cold Drawing 4  STKM13A JIS3445 Precision Seamless Steel Tube , 75*3.5MM Carbon Seamless Steel Pipe  Cold Drawing 5

 

 

STKM13A JIS3445 Precision Seamless Steel Tube , 75*3.5MM Carbon Seamless Steel Pipe  Cold Drawing 6

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