STKM 11A Carbon Steel Tubes Inspection
– samples of STKM 11A carbon steel tubes available now
JIS G3445 STKM11A, STKM 12A, STKM 13A, STKM15A is the standard applicable to carbon steel tubes for machine structural purposes
STKM 11A Carbon Steel Tube Shipping details:
Description: Seamless Cold Drawn Steel tubes
Standard: JIS G3445
Grade: STKM 11A
Delivery Condition: Bright Annealing
Size: OD.4mm; ID. 1.5mm; Length 4000mm
Quantity: 60000pcs (22500kgs)
Importer Country: Singapore
Production time: 2020-04-10
Supplier: CTS TUBES (email: email@example.com)
STKM 11A Size Inspection report:
Click to download the details of STKM 11A Carbon Steel Tubes Inspection.
STKM 11A Carbon Steel Tube Chemical components and Mechanical properties inspection
|JIS G3445||STKM 11A||0.08||0.25||0.45||0.012||0.006||487||332||42|
STKM 11A Carbon Steel Tube Inspection Photos:
JIS G3445 STKM 11A carbon steel tubes used for fuel injection tubes, machinery, automobiles, bicycles, furniture, appliances and other machine parts.
Grade and Designation
The grade and designation of the tube shall be as given as follows table.
The sub classification letter symbols A, B and C are used to indicate distinction of method of manufacturing the tube, cold working process, heat treatment, etc.
|Grade 11||A||STKM 11A|
World standard Comparative with JIS G3445
|D 3517||Grade 11 A||STKM 11 A||A513||MT1010||G-3445||STKM11A||–||–|
- The tubes shall be practically straight. and the two ends shall be at right angles to the axis of the tube
- The tubes shall be free from defects detrimental to practical use.
- The surface finish of the tubes, when especially specified shall be agreed upon by the purchaser and the manufacturer.
Tolerance on Outside Diameter
|Division||Tolerances on outside diameter|
|No. 1||Under 50mm ±0.5mm|
|50mm or over ±1%|
|No. 2||Under 50mm ±0.25mm|
|50mm or over ±0.5%|
|No. 3||Under 25mm ±0.12mm|
|25mm or over to and excl. 40mm ±0.15mm|
|40mm or over to and excl. 50mm ±0.18mm|
|50mm or over to and excl. 60mm ±0.20mm|
|60mm or over to and excl. 70mm ±0.23mm|
|70mm or over to and excl. 80mm ±0.25mm|
|80mm or over to and excl. 90mm ±0.30mm|
|90mm or over to and excl.100mm ±0.40mm|
|100mm or over ±0.50%|
Tolerance on Thickness
|Division||Wall Thickness||Tolerances on Wall Thickness|
|No. 1||Under 4mm||+0.6 -0.5|
|4mm or over||+15% -12.5%|
|No. 2||Under 3mm||±0.3|
|3mm or over||±10%|
|No. 3||Under 2mm||±0.15|
|2mm or over||±8%|
- Mill test certificates will be issued according to EN10204.3.1
- The tubes can supply Seamless and Welded both. Customer can confirm on contract.
For more information of STKM 11A Seamless tubes, please feel free to contact us by email.
STKM 11A Seamless Steel tube .pdf Download
Know more: What is a STKM 11A / STKM 12A Steel Tube
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