ISO/EN seamless stainless steel tubes - Zhejiang Ruimai stainless steel tube Co., Ltd-hydraulic pipe, heat exchanger tubes, line pipe

ISO/EN seamless stainless steel tubes

Seamless stainless steel tubes

according to ISO/EN standards, which also includes a wide range of sizes in duplex and super-duplex stainless steels grades.

1) Standard
EN/ISO seamless stainless steel tubing is available according to below standards, also customer's requirements.
- EN 10216-5 TC1 / TC2
- EN 10297-2
- PED 97/23/EC, AD 2000
2)  Steel Grades
Austenitic stainless steel grades: 1.4301/1.4307, 1.4401/1.4404, 1.4541/1.4878, 1.4571, 1.4948
Duplex / super duplex stainless steel grades: 1.4462, 1.4410, 1.4539

3)  Delivery condition
Seamless stainless steel tubes mainly are delivered in below conditions:
- Bright annealed,
- Solution annealed and pickled,
- Annealed and Polished

4)  Size Range
Ruimai can produce seamless stainless steel tubes in a wide size range as below:
Outer Diameter: 3 mm to 508 mm; 
Wall thickness: 0.5 mm - 40 mm

5)   Tolerances
EN/ISO seamless stainless steel tubing usually is following the below requirements and the customer's requests.

ConditionOutside diameterWall thickness
Tolerances according to EN ISO 1127

+/-0.75%, but min.
+/- 0.3 mm (D3)
+/- 0.5% (D4)

+/-10%, but min.
+/- 0.2 mm (T3)
+/- 7.5% (T4) 

 EN/ISO Standard seamless stainless steel tubes are supplied as: