High Manganese Content DIN 2391 ST52 Precision Steel Tube Customizable

Brand Name:FRANK STEEL
Certification:DNV / LR / BV/ SGS
Model Number:DIN2391 ST52
Minimum Order Quantity:1 Tons or negotiation
Delivery Time:about 30 work days
Payment Terms:T/T, L/C
Contact Now

Add to Cart

Active Member
Location: Suzhou Jiangsu China
Address: 227-11666 DONGTAIHU STREET, SONGLING TOWN, SUZHOU CITY, JIANGSU PROVINCE, P.R.CHINA
Supplier`s last login times: within 48 hours
Product Details Company Profile
Product Details

DIN2391 ST52 Precision Seamless Steel Pipe, High Manganese Content, No Leakage Under High Pressure


1. Description

The content of carbon and manganese in DIN2391 ST45 precision seamless steel pipe is relatively high. In terms of physical properties, its hardness, tensile strength and yield strength are relatively strong. After cold drawing, pickling, and cold rolling heat treatment processes, the inner and outer walls are free of oxide layer, and the accuracy of the inner and outer walls is very high. The mechanical properties can meet the requirements of bending at any angle. Moreover, it can withstand high pressure, cold bending without deformation, flaring without crack, flattening without crack and other excellent properties. This brand of precision steel pipe is mainly used in hydraulic steel pipe, injection molding machine steel pipe, marine steel pipe, EVA foaming hydraulic machinery, hydraulic equipment, and high-pressure oil pipe die-casting machinery.


Size: 6mm-168mm.
W.T.: 0.8mm-12mm.
Shape: Round.

Production type: Cold drawn or cold rolled.

Length: Single random length/ Double random length or as customer’s actual request max length is 10m.

Grade: St30 Si, St30 Al, St35, St45, St52.


2. Surface Quality

There are generally three delivery states.

A. NBK state (no oxidation bright heat treatment) Features--- high precision, good finish, no oxide layer.

B. Black phosphating state Features--- bright in black, good color, strong rust resistance.

C. Galvanizing State Features--- meet special requirements


3. Chemical Composition

Steel nameC maxSi maxMnP maxS max
St 30 Si0.10.3≤0.550.0250.025
St 30 Al0.10.05≤0.550.0250.025
St 350.170.35≥0.400.0250.025
St 450.210.35≥0.400.0250.025
St 520.220.55≤1.600.0250.025

4. Mechanical Properties

Steel Grade Minimum values for the delivery condition           
Steel NameSteel NumberBK BKW BKS  GBK NBK  
  RmA %RmA %RmReHA %RmA %RmReHA %
  Mpa Mpa MpaMpa Mpa MpaMpa 
St 30 Si1.02114308380123802801628030290 to 42021530
St 30 Al1.02124308380123802801628030290 to 42021530
St 351.03084806420104203151431525340 to 47023525
St 451.0408580552085203751239021440 to 57025521
St 521.058640458075804201049022490 to 63035522

5. Details picture


About us

Our specific is in accordance with the standards specified by customers, the size and length required by customers, settlement amount by weight. Since it is a customized seamless steel pipe, customers need to provide the steel grade (standard), outer diameter, wall thickness, length and quantity of seamless steel pipes when making an inquiry. We will send you a quotation with favorable price immediately.

China High Manganese Content DIN 2391 ST52 Precision Steel Tube Customizable supplier

High Manganese Content DIN 2391 ST52 Precision Steel Tube Customizable

Inquiry Cart 0