What is the equivalent material to stkm13?
STKM 13A carbon steel pipes have several equivalent grades from different international standards. Here are some of the equivalent grades: ASTM A519 Grade 1020. EN 10305-1 E355+SR.
What is STKM 13A material?
JIS G 3445 Grade STKM 13A Tubes are low-cost Low Carbon Steel Tubes with max 025 % carbon content with combination of 030-090 % manganese easy to form and shape .
STKM 13A, 13B, 13C carbon steel pipes are widely used in bridges, buildings, towers and other structural parts requiring medium to high strength. It has greater strength and durability and therefore can also be used in the manufacture of heavy vehicles, machinery and equipment. They can also be used in piping systems that carry fluids or gases under medium to high pressure conditions.
Chemical Composition
| Grade | Chemical Composition % | |||||
| C | Si | Mn | P | S | Nb or V | |
| STKM13A | ≤0.25 | ≤0.35 | 0.30~ 0.90 |
≤0.040 | ≤0.040 | - |
| STKM13B | ||||||
| STKM13C | ||||||
Mechanical Properties
| Grade | Mechanical Properties | Flattening Test | Bending Test | |||
| Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation (%) | Distance between that parts (D=OD) |
Bend Angle |
Inside Radius (D=OD) |
|
| No.11: Specimen | ||||||
| STKM13A; | 238 (373) |
222 (216) |
230 | 2/3D | 90° | 6D |
| STKM13B | 245 (441) |
231 (304) |
220 | 3/4D | 90° | 6D |
| STKM13C | 252 (510) |
239 (382) |
215 | - | - | - |
JIS G3445 Machine Structural Carbon Steel pipe
Size: 4mm-340mm
W.T.: 1mm-50mm
Shape: Round
Production type: Cold drawn, Cold rolled, Hot rolled, or Electric resistance welding.
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