Cangtie Industrial Co., Ltd. has been a manufacturer of stainless steel seamless pipes for over ten years, with annual sales exceeding 80,000 tons. Our customers are located in 45 countries and regions worldwide, including Italy, the UK, Germany, the USA, Canada, Chile, Colombia, Saudi Arabia, South Korea, Poland, Singapore, Australia, and France.
JIS G3459 stainless steel pipes are the ideal choice for corrosion-resistant pipelines. Different grades of stainless steel pipes are suitable for both low and high temperature environments. Their manufacturing processes can employ cold or hot working, thus meeting the requirements of various specific products and satisfying customer application needs.
1. JIS G3459 Stainless Steel Pipe/ Tubo de acero inoxidable
Applications: JIS G3459 stainless steel pipes are suitable for general corrosive environments.
Main Standard: JIS G3459
Main Grades: SUS304, SUS316L
Outer Diameter: 6-426mm
Wall Thickness: 0.5-36mm
Length: Random or fixed length
Surface Treatment: Pickled or as per customer requirements
Measurement Method: Outer Diameter (A) × Wall Thickness (B) × Length
2. PS: 304 VS 316L
Table 1: Chemical Composition Comparison (JIS G3459)
| Element | SUS304 | SUS316 | Key Difference |
| C (Carbon) | 0.08 max. | 0.08 max. | Identical |
| Si (Silicon) | 1.00 max. | 1.00 max. | Identical |
| Mn (Manganese) | 2.00 max. | 2.00 max. | Identical |
| P (Phosphorus) | 0.045 max. | 0.045 max. | Identical |
| S (Sulfur) | 0.030 max. | 0.030 max. | Identical |
| Ni (Nickel) | 8.00–10.50 | 10.00–14.00 | 316 has higher Nickel for stability |
| Cr (Chromium) | 18.00–20.00 | 16.00–18.00 | 304 has slightly more Chromium |
| Mo (Molybdenum) | - | 2.00–3.00 | 316 adds Mo for superior pitting resistance |
Table 2: Mechanical Properties Comparison (JIS G3459)
| Property | SUS304 TP | SUS316 TP |
| Tensile Strength | 520N /mm² min. |
520N /mm² min. |
| Proof Stress (0.2%) | 205N /mm² min. | 205N /mm² min. |
| Elongation | 35% min. | 35% min. |
Table 3: Application & Selection Guide
| Category | SUS304 | SUS316 |
| Corrosion Resistance | Excellent for atmospheric and freshwater use. | Superior in chloride-rich environments (seawater, salt spray). |
| Temperature Limits | Standard service up to 800°C. | Higher creep strength at elevated temperatures. |
| Cost Efficiency | Most economical and widely available. | Higher cost due to Molybdenum and Nickel content. |
| Common Uses | Food processing, architecture, water supply. | Chemical processing, marine engineering, pharmaceutical. |
Table 4: JIS Stainless Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Ni | Cr | Mo | Others |
| SUS304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 8.00-10.50 | 18.00-20.00 | - | - |
| SUS304L | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 9.00-13.00 | 18.00-20.00 | - | - |
| SUS310S | ≤0.08 | ≤1.50 | ≤2.00 | ≤0.045 | ≤0.030 | 19.00-22.00 | 24.00-26.00 | - | - |
| SUS316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 10.00-14.00 | 16.00-18.00 | 2.00-3.00 | - |
| SUS316L | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 12.00-15.00 | 16.00-18.00 | 2.00-3.00 | - |
| SUS317L | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 11.00-15.00 | 18.00-20.00 | 3.00-4.00 | - |
Table 5: Mechanical properties
| Grade | Tensile strength | Proof stress | Elongation % | |||
| No. 11 test piece | No. 5 test piece | No. 4 test piece | ||||
| kgf/mm2 | kgf/mm2 | No. 12 test piece | ||||
| {N/mm2} | {N/mm2} | Longitudinal direction | Transverse direction | Longitudinal direction | Transverse direction | |
| SUS 304TP | 53{520}min. | 21{206}min. | 35 min | 25 min | 30 min | 22 min |
| SUS 304HTP | 53{520}min. | 21{206}min. | 35 min | 25 min | 30 min | 22 min |
| SUS 304LTP | 49{481}min. | 18{177}min. | 35 min | 25 min | 30 min | 22 min |
Table 6: Advantages of Seamless Steel Pipes
| Feature | Seamless Pipe Advantage | Explanation |
| Pressure Resistance | Superior Strength | The absence of a longitudinal weld seam eliminates a potential weak point, allowing the pipe to withstand significantly higher internal pressures. |
| Structural Integrity | Uniformity | Seamless pipes possess a uniform metallurgical structure and wall thickness around the entire circumference, ensuring consistent mechanical properties. |
| Corrosion Resistance | No Weld Decay | Welded areas are often more susceptible to "weld decay" or localized corrosion. Seamless pipes avoid this risk entirely, making them ideal for "corrosion service." |
| Precision & Shape | Better Roundness | The manufacturing process typically results in better concentricity and "out-of-round" tolerances compared to heavy-wall welded pipes. |
| Safety & Reliability | Reduced Failure Risk | Without a seam to fail or leak under stress, vibration, or thermal expansion, seamless pipes provide a higher safety margin in critical applications. |
| Internal Surface | Smoother Flow | The internal bore is smooth and free of weld beads, which reduces fluid friction and prevents the buildup of debris or contaminants. |
Table 7: Comparison Summary: Seamless vs. Welded
| Criteria | Seamless (e.g., JIS G3459-S) | Welded (e.g., ERW/EFW) |
| Manufacturing | Extruded from a solid billet. | Formed from plate/strip and welded. |
| Cost | Higher (complex process). | Lower (efficient for large diameters). |
| Typical Use | High pressure, high temp, oil/gas. | Low pressure, structural, water lines. |
Table 8: Others like BS, JIS standard or can supply
| Standard | Material Grades |
| American Standard |
Austenitic Steel: TP304, TP304L, TP304H, TP304N, TP310S, TP316, TP316L, TP316Ti, TP316H, TP317, TP317L, TP321, TP321H, TP347, TP347H, 904L... Duplex Steel: S32101, S32205, S31803, S32304, S32750, S32760 Others: TP405, TP409, TP410, TP430, TP439... |
| European Standard | 1.4301, 1.4307, 1.4948, 1.4541, 1.4878, 1.4550, 1.4401, 1.4404, 1.4571, 1.4438, 1.4841, 1.4845, 1.4539, 1.4162, 1.4462, 1.4362, 1.4410, 1.4501 |
| Russia Standard | 08X17T, 08X13, 12X13, 12X17, 15X25T, 04X18H10, 08X20H14C2, 08X18H12B, 10X17H13M2T, 10X23H18, 08X18H10, 08X18H10T, 08X18H12T, 08X17H15M3T, 12X18H10T, 12X18H12T, 12X18H9, 17X18H9, 08X22H6T, 06XH28MDT |
Table 9: Size Range
| Production | Outside Diameter | Wall Thickness |
| Seamless Stainless Steel Pipe | 6.00mm to 830mm | 0.5mm to 48mm |
1. Corrosion resistance：The reason why SUS 304 stainless steel has excellent corrosion resistance in the atmosphere is due to the formation of a chromium passivation film on its surface. But when SUS 304 is in a warm chloride environment, the corrosion is even faster than non-alloyed mild steel.
2. Welding：SUS 304 stainless steel has good weldability and can be welded by the usual welding method without heat treatment before welding.
However, the welding of SUS 304 material are also insufficient: after welding large steel parts, it is sensitive to intergranular corrosion in chlorine-containing medium. In this case, SUS304L with lower carbon content should be selected.
3. Applications：SUS304 stainless steel is widely used in medical fields (such as surgical instruments, test instruments), food fields (such as kitchen utensils and tableware), architectural decoration and artwork (such as metal curtains, punching nets, metal facades), and electronic products (such as cell phones and Laptop case, kettle), daily necessities (such as scissors, water cups, etc.)
We carry on to build and style and design remarkable quality items for both our outdated and new clients and reach a win-win prospect for our clients at the same time as us for JIS G3459 SUS304 Tp Seamless Tube/Welded Stainless Steel Pipe. Welcome throughout the world buyers to speak to us for organization and long-term cooperation. Based on the concept of 'customer first, continuous innovation, integrity development', we constantly pursue to improve product performance and achieve win-win cooperation with partners.
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