Amardeep Steel Centre is considered as the most Reliable JIS G 3445 Grade STKM 13C Tubes Supplier from India. JIS G3445 STKM13C honing steel pipe is a high-precision steel pipe material that is produced through cold drawing or hot rolling. It is primarily used for the production of pneumatic or hydraulic components, such as cylinders or cylinders, Can be seamless tube, due to the characteristics of no oxide layer on the inner and outer walls of the precision steel tube, no leakage under high pressure, high precision, high finish, no deformation in cold bending, no flaring, no cracks in flattening, and so on. Quilted steel pipe is made up of carbon C, silicon Si, manganese Mn, sulphur S, phosphorus P, and chromium Cr. The steel pipe manufactured is of high precision and good finish, with no oxide coating on the inner and exterior walls.
JIS G 3445 Grade STKM 13C Carbon Steel Seamless Tubes are also known as mild steel pipes and tubes. JIS G 3445 Grade STKM 13C Tubes are low-cost Low Carbon Steel Tubes with max 025% carbon content that are easy to form and shape. These pipes are manufactured as per JIS Specification and commercially referred to as cs pipes or ms pipes. Mechanical characteristics may be bent at any angle without being deformed. It is primarily used to prepare steel pipes in hydraulic systems' oil circuits, commonly known as hydraulic hard pipes and precision steel pipes for automobiles.
| Description | Seamless Cold Drawn Steel tubes |
| Standard | JIS G3445 |
| Grade | STKM 13C |
| Delivery | Condition: Cold finished |
| Size | OD.25.4mm; ID. 22.91mm; Length 2500m |
| Supplier | Amardeep Steel |
| Standard | Grade | Chemical Components (%) | Mechanical properties （Bright Annealing) |
|||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
||
| JIS G3445 | STKM 13C | 0.2 | 0.21 | 0.38 | 0.011 | 0.003 | 0.07 | 0.01 | 0.03 | 635 | 565 | 16 |
| Grade | Tensile strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
| STKM13C | 635 | 565 | 16 |
• Machinery
• Automobiles
• Bicycles
• Furniture
• Appliances
• Other machine parts
The grade and designation of the tube shall be given as the following table.
The sub-classification letter symbols A, B, and C, are used to indicate the distinction of the
method of
manufacturing the tube, cold working process, heat treatment, etc.
| Grade | Designation | |
| Grade 13 | A | STKM 13A |
| B | STKM 13B | |
| C | STKM 13C | |
| NUBER | GRADE | NUBER | GRADE | NUBER | GRADE | NUBER | GRADE | |
| D 3517 | Grade13 C | STKM 13 C | – | – | G-3445 | STKM13C | – | – |
| Grade | Designation | Unit % | ||||||
| C | Si | Mn | P | S | Nb or V | |||
| Grade 13 | C | STKM 13C | 0.25 max. | 0.35 max. | 0.30~0.90 | 0.040 max. | 0.040 max. | – |
| Designation | Tensile strength N/П {kgf/П} |
Yield point or proof N/П {kgf/П} |
Elongation % | Flattening strength Distance between flat plates (H) (D is outside dia. of the tube) |
Bending strength | |||
| No. 4, | No. 4, | Bend angle | Inside radius | |||||
| No. 11 | No. 5 | (D is outside dia. of the tube) | ||||||
| No. 12 | test pieces Transverse direction | |||||||
| test pieces Longitudinal direction | ||||||||
| STKM13C | 510{52} min… | 380{39} min. | 15 min. | 10 min. | – | – | – | |
• The tubes will almost be straight. The ends of the tube should be at right angles to
the tube's center.
• The tubes must be free of any flaws that would make them hard to use.
• When it's important, the buyer and the manufacturer will agree on the surface finish
of the tubes.
| Division | Tolerances on the 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% |
| Division | Tolerances on wall thickness |
| No. 1 | Under 4mm |
| +0.6mm | |
| -0.5mm | |
| 4mm or over | |
| 15% | |
| -12.50% | |
| N. 2 | Under 3mm |
| ±0.3mm | |
| 3mm or over |
| STKM13C Cold drawn seamless pipes | STKM13C Hot drawn seamless pipes |
| STKM13C Cold drawn seamless Tubes | STKM13C Hot drawn seamless Tubes |
| STKM13C ERW Pipes | STKM13C Cold drawn seamless pipes |
| STKM13C SAW Pipes | STKM13C SAW Tubes |
| STKM13C CW Pipes | STKM13C CW Tubes |
| STKM13C DSAW Pipes | STKM13C DSAW Tubes |
| STKM13C Spiral welded Pipes | STKM13C Spiral welded Tubes |
| STKM13C High Frequency Induction Pipes | STKM13C High Frequency Induction Tubes |
| STKM13C LSAW Pipes | STKM13C LSAW Tubes |
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