JIS G3445 STKM 11A precision steel pipe is a carbon steel pipe suitable for machinery, automobiles, bicycles, furniture, appliances and other mechanical parts.
The specifications and outer diameter of JIS G3445 STKM 11A seamless precision steel pipe range from 8mm to 89mm, and the wall thickness is between 1mm and 12mm. Surface treatment includes brightening, annealing, normalizing, etc.
GNEE also provides deep processing services, including stamping, bending, etc., to meet the processing needs of various complex parts.
Products Data
Chemical Composition of JIS G3445 STKM 11A seamless steel pipe
| Grade | Chemical Composition % | |||||
| C | Si | Mn | P | S | Nb or V | |
| STKM11A | ≤0.12 | ≤0.35 | ≤0.60 | ≤0.040 | ≤0.040 | |
Mechanical Properties of JIS G3445 STKM 11A precision seamless steel pipe
| 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 | ||||||
| STKM11A | 230 (294) |
- | 235 | 1/2D | 180° | 4D |
Products display
STKM 11A Precision bright seamless steel pipe

Why Choose GNEE
GNEE has modern standard factory buildings, dozens of advanced large-scale precision cold-rolled tube production lines, and complete physical and chemical testing equipment. It produces more than 50,000 tons of cold-rolled precision seamless steel pipes annually and has passed ISO9001:2015 quality management system certification.
GNEE specializes in the production of precision bright seamless steel pipes, large-diameter precision drawn pipes, alloy steel pipes, and special-shaped pipes.
If any question,please contact with us freely by E-mail or Telephone.sales@gneetube.com
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FAQ
Q.Can you provide samples?
A.Of course, we can provide you with free samples, but customers need to pay the shipping cost.
Q.How long is your delivery time?
A.Specifically, need to consider the quantity and specifications of your order.
Q.Do you have quality control?
A.Yes, we have got BV.SGS certification.
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