Welcome to Changzhou Tenjan Steel Tube Co., Ltd

E355 Steel Pipe

E355 Low-Alloy High-Strength Seamless Steel Tubes represent European EN standard low-alloy high-strength structural steel tubes engineered for applications requiring superior strength-to-cost ratio and excellent processability.

25CrMo4 Steel Pipe

25CrMo4 Chromium-Molybdenum Alloy Seamless Steel Tubes represent German DIN standard medium-carbon chromium-molybdenum steel tubes specifically engineered for medium-temperature and medium-pressure applications requiring balanced strength, toughness, and creep resistance.

SCM440 Steel Pipe

SCM440 Chromium-Molybdenum Alloy Seamless Steel Tubes are Japanese JIS standard medium-carbon chromium-molybdenum steel tubes engineered for heavy-duty applications requiring exceptional strength, fatigue resistance, and high-temperature stability.

4140 Steel Pipe

4140 Chromium-Molybdenum Alloy Seamless Steel Tubes represent American ASTM/SAE standard medium-carbon chromium-molybdenum alloy steel tubes engineered for heavy-duty applications requiring exceptional strength, toughness, and thermal stability.

4130 seamless pipe

4130 Alloy Seamless Steel Tubes represent American ASTM/SAE standard medium-carbon chromium-molybdenum alloy steel tubes engineered for medium-to-high strength applications requiring exceptional toughness and fatigue resistance.

8620 Alloy Pipe

8620 Alloy Seamless Steel Tubes represent American SAE standard low-carbon nickel-chromium-molybdenum alloy steel tubes engineered for carburizing applications requiring exceptional surface wear resistance combined with core toughness.

16MnCr5 Steel Pipe

16MnCr5 Alloy Seamless Steel Tubes represent German DIN standard manganese-chromium alloyed structural steel products engineered for high hardenability and exceptional wear resistance in precision mechanical applications.

34MnB5 Alloy Pipe

34MnB5 Alloy Seamless Steel Tubes represent German DIN standard manganese-boron alloyed structural steel products engineered for high strength and excellent hardenability at competitive cost levels.

5140 Steel Pipe

5140 Alloy Seamless Steel Tubes represent American ASTM standard chromium-alloyed structural steel products engineered for medium-to-high strength and anti-fatigue applications.

5120 Alloy Pipe

5120 Alloy Seamless Steel Tubes represent American ASTM/SAE standard low-carbon chromium-alloyed structural steel products engineered for case hardening applications requiring balanced strength, processability, and cost-effectiveness.

41Cr4 Alloy Pipe

S235JR seamless pipe

S235JR Seamless Steel Tubes represent European EN standard carbon structural steel tubular products designed for general structural applications and fluid transportation.