STKM 13C Seamless Tubes Features
- Outside Diameter : 19.05 – 114.3mm
- Grade: STKM 13C
- Standard: JIS G3445
- Wall Thickness: 2 – 14 mm
STKM13C Equivalent Material
| Grade | India | Europe | America | German |
|---|---|---|---|---|
| ISO | EN | ASTM | DIN | |
| STKM 13C Seamless Tubes | 683-1 C20E4 | 10305-1, E355+SR | ASTM A519 Grade 1020 | 2391 ST52 BK+S |
Table of contents
- STKM 13C Seamless Tubes Specification
- Applications for STKM 13C Seamless Tubes
- STKM 13C Tube Surface Coating
- Tolerance on Outside Diameter of STKM 13C material
- Tolerance on Thickness of CNS STKM13C
- Most Common Types of STKM 13C Seamless Tubes
- Grades Chemical Analysis of STKM 13C Carbon Steel Seamless Tubes
- STKM13C Chemical Composition
- JIS G3445 Grade STKM 13C Mechanical Analysis Grade Wise
- Operating Temperature of STKM13C Material
- STKM13C Steel Grade Hardness
- Creep strain limit of CNS STKM13C
- Heat Treatment of JIS G3445 STKM13C
- STKM13C Material Properties
- STKM13C Seamless Steel Tube HSN Code
- Features of JIS G3445 13C Carbon Steel Mechanical Tube
- JIS G3345 Grade STKM13C Steel Tube Grade Bending and Flattening Test
- Manufacturing Process of STKM 13C Mechanical Tubes
- STKM 13C Welded Steel Tube Delivery Condition
STKM 13C Seamless Tubes Specification
| STKM 13C Tube Sizes |
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|---|---|
| STKM 13C Mechanical Tubes Length |
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| STKM 13C Carbon Steel Seamless Tubes Grade |
|
| STKM13C Material Tube Standard |
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| JIS G 3445 Grade STKM 13C Tube Surface Coating |
|
| Description of STKM 13C Welded Steel Tube |
|
| Surface Roughness of STKM13C Seamless Steel Tube |
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| ID Accuracy of JIS G3445 13C Carbon Steel Mechanical Tube |
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| STKM 13C Mechanical Tubes Density |
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| JIS G3345 Grade Stkm13C Low Carbon Steel Tube Usage |
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JIS G3345 Grade STKM13C Low Carbon Steel Tube for Structural , Gas Lines and Water Pipe Lines
Applications for STKM 13C Seamless Tubes
STKM13C Seamless Steel Tube in Oiled Surface
- Phosphated Coating
- Galvanized Zinc
- Plus Polyester Coating
JIS G 3445 Grade STKM 13C Cold Drawn Carbon Steel Precision Tubes in 6-60mm
Tolerance on Outside Diameter of STKM 13C material
| Div | Tolerances on the OD |
| No. 1 | Under 50mm ±0.5mm |
| 50mm or over ±1% | |
| No. 2 | Under 50mm ±0.25mm |
| 50mm or over ±0.5% |
Tolerance on Thickness of CNS STKM13C
| Size | Tolerance |
|---|---|
| Under 4mm | +0.6mm to -0.5mm |
| 4mm or over | -12.50% to 15% |
STKM 13C Carbon Steel Seamless Tubes
Most Common Types of STKM 13C Seamless Tubes
STKM 13C Mechanical Tubes
STKM 13C Carbon Steel Seamless Tubes
STKM 13C Welded Steel Tube
Grades Chemical Analysis of STKM 13C Carbon Steel Seamless Tubes
| Grade’s | Designation | Chemical Composition (%) | |||||
|---|---|---|---|---|---|---|---|
| Mn (Max.) | Si (Max.) | C (Max.) | P (Max.) | S (Max.) | |||
| A | 11 | STKM 11A | 0.60 | 0.35 | 0.12 | 0.040 | 0.040 |
| A B |
16 | STKM 16A STKM 16B |
0.40 ~1.00 | 0.40 | 0.35 ~0.45 | ||
| A B C |
13 | STKM 13A STKM 13B STKM 13C |
0.30 ~0.90 | 0.35 | 0.25 | ||
| A B |
15 | STKM 15A STKM 15B |
0.30 ~1.00 | 0.35 | 0.25 ~0.35 | ||
| A B |
17 | STKM 17A STKM 17B |
0.40 ~1.00 | 0.40 | 0.45 ~0.55 | ||
| A B C |
12 | STKM 12A STKM 12B STKM 12C |
0.60 | 0.35 | 0.20 | ||
| A B C |
14 | STKM 14A STKM 14B STKM 14C |
0.30 ~1.00 | 0.35 | 0.30 | ||
| A B C |
18 | STKM 18A STKM 18B STKM 18C |
1.50 | 0.55 | 0.18 | ||
| Standard | Grade | Chemical Components (%) (Max.) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Si | P | Cr | S | Ni | C | Mn | Cu | ||
| JIS G3445 | STKM 13C | 0.21 | 0.011 | 0.07 | 0.003 | 0.01 | 0.2 | 0.38 | 0.03 |
JIS G3445 Grade STKM 13C Mechanical Analysis Grade Wise
| Grade’s | Mechanical Properties | ||
|---|---|---|---|
| Yield Strength (MPa) |
Tensile Strength (MPa) |
Elongation (%) | |
| Specimen (No.11) | |||
| STKM14A | 225 (245) |
242 (412) |
225 |
| STKM11A | – | 230 (294) |
235 |
| STKM12B | 228 (275) |
240 (392) |
225 |
| STKM13A | 222 (216) |
238 (373) |
230 |
| STKM13C | 239 (382) |
252 (510) |
215 |
| STKM14B | 236 (353) |
251 (500) |
215 |
| STKM12C | 236 (353) |
248 (471) |
220 |
| STKM12A | 218 (177) |
235 (343) |
235 |
| STKM13B | 231 (304) |
245 (441) |
220 |
| STKM14C | 242 (412) |
256 (549) |
215 |
Operating Temperature of STKM13C Material
| Operating Temperature | 743 °C |
|---|
| HBS | 546～175 |
|---|---|
| HRC | 30 |
Creep strain limit of CNS STKM13C
| Creep strain limit (10000h) (Rp1,0)N/mm2 |
399 |
|---|
Heat Treatment of JIS G3445 STKM13C
| Heat Treatment | 1491°C – 1554°C |
|---|
| Grade | Standard | Yield Strength | Tensile strength | Elongation |
|---|---|---|---|---|
| STKM 13C | JIS G3445 | 565 Mpa | 635 Mpa | 16% |
STKM13C Seamless Steel Tube HSN Code
| Grade | HSN Code |
|---|---|
| STKM 13C Seamless Tubes | 7304 |
Features of JIS G3445 13C Carbon Steel Mechanical Tube
- Surface Finish are Excellent
- Versatile
- High Accuracy Dimensional
- Adaptable
- Good in Ductility
JIS G3345 Grade STKM13C Steel Tube Grade Bending and Flattening Test
| Grade | Flattening | Bending | |
|---|---|---|---|
| Distance Between Parts (OD) | Inside Radius (OD) | Bend Angle | |
| STKM11A | 1/2D | 4D | 180° |
| STKM12B | 2/3D | 6D | 90° |
| STKM13B | 3/4D | 6D | |
| STKM13A; | 2/3D | 6D | |
| STKM14A | 3/4D | 6D | |
| STKM12A | 2/3D | 6D | |
| STKM14B | 7/8D | 8D | |
Manufacturing Process of STKM 13C Mechanical Tubes
- Forging
- Hot rolling
- Cold rolling
- Cast
- Cold-Rolled
- Hot-Rolled
- Hot extrusion
STKM 13C Welded Steel Tube Delivery Condition
- Annealed
- Solution and Aging
- Quenched and Tempered
- Acid Washed
- Shot Blasting
- Rough Turning
