Send Message

JIS G3445 Seamless Precision Tube Steel Cold Drawn SKTM13C 1mm

Basic Information
Place of Origin: China
Brand Name: SunShine
Certification: ISO9001
Model Number: 6mm to 114.3mm
Minimum Order Quantity: 5T
Packaging Details: In Bundles, Woodenbox As Your Requirement
Delivery Time: 30days
Payment Terms: L/C, T/T
Supply Ability: 2000T/Month
Detail Information
Name: Seamless Precision Tube OD. Range: 6mm – 114.3mm
Wall Thickness: 1mm-20mm Length: Max Length 12M
Standard: JIS G3445 Grade: STKM 13C, 25Mn
High Light:

JIS G3445 Seamless Precision Tube


1mm Seamless Precision Tube



Product Description

SKTM13C JIS G3445 Cold Drawn Seamless Precision Steel Pipe


JIS G 3445 Grade STKM 13B Carbon Steel Seamless Tubes are also known as mild steel pipes and tubes.JIS G 3445 Grade STKM 13B Tubes are low-cost Low Carbon Steel Tubes with max 025 % carbon content with combination of 030-090 % manganese easy to form and shape .These pipes are manufactured as per JIS Specification and commercially referred as cs pipes or ms pipes.Low Carbon Steel Pipes are not as hard as hig carbon steel pipes,Though carburizing can increase its surface hardness.

SKTM13C(25MN) JIS G3445


Grade Chemical Composition%
C Si Mn P S
20# 0.17-0.24 0.17-0.37 0.35-0.65 0.035 0.035
45# 0.42-0.50 0.17-0.37 0.50-0.80 0.035 0.035
SKTM13C-T(25Mn) 0.22-0.29 0.17-0.37 0.70-1.00 0.035 0.035
27SiMn 0.24-0.32 1.10-1.40 1.10-1.40 0.035 0.035
E355 ≤0.22 ≤0.55 ≤1.6 0.025 0.025
Q345B ≤0.2 ≤0.5 1.00-1.60 0.030 0.030
Q345D ≤0.2 ≤0.5 1.00-1.60 0.030 0.030
SAE1026 0.22-0.28 0.15-0.35 0.60-0.90 0.040 0.050


SKTM13C(25MN) JIS G3445

Delivery condition


Cold Drawn & Stress-Relieved

Steel Grade Rm MPa ReH MPa Elongation A5(%)
ST45 ≥520 ≥375 ≥15
ST52(E355) ≥600 ≥520 ≥14
SAE1026 ≥600 ≥510 ≥15
45# ≥600 ≥520 ≥10
20# ≥520 ≥375 ≥15


SKTM13C(25MN) JIS G3445

Delivery condition


Cold finished

Steel Grade Rm MPa Elongation A5(%)
ST45 ≥550 ≥5
ST52(E355) ≥640 ≥5
SAE1026 ≥640 ≥5
45# ≥640 ≥5
20# ≥550 ≥8


JIS G3445 Seamless Precision Tube Steel Cold Drawn SKTM13C 1mm 0




Q: What product information must I provide before making a purchase?
Please provide the grade, width, thickness, and surface treatment requirements, as well as the quantities you require.

Q: What shipping ports are there?
We normally ship from Shanghai,Tianjin, Qingdao, and Ningbo ports

Q: Is it possible to send samples?
Of course, we offer free samples and express shipping to customers all over the world.

Q: Do you offer a service for customized products?
Yes, we can produce according to your specifications and drawings.

Q: Can I pay you a visit at your factory?
Customers from all around the world are welcome to visit our factory.

Q: Can you assist me in importing steel products for the first time?
Yes, we have shipping agent who will arrange the shipment with you.

Q: Do you have any MOQ limit for production?
We don’t have any MOQ limit. But as for our steel pipe product, we usually use container transport for lower freight. In the case of express delivery, high freight charges will be generated.

Q: Is it OK to print my logo on the product or the carton packing?
Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q: How to pack the product?
The inner layer has a waterproof paper outer layer, iron packaging, and is fixed with a fumigated wooden pallet. It
can effectively protect products from corrosion during ocean transportatio

Contact Details

Whatsapp : +8613961408918