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DIN2393 Seamless Precision Steel Tube For Heat Exchanger

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DIN2393 Seamless Precision Steel Tube For Heat Exchanger

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Brand Name : Joyruns

Model Number : DIN2393 Gas Spring tube

Certification : ISO9000

Place of Origin : CHANGZHOU, CHINA

MOQ : 5TONs

Price : Negotiable

Payment Terms : TT OT 100% LC AT SIGHT

Supply Ability : 1000Ton/month

Delivery Time : 30DAYS

Packaging Details : Exporting package/wooden box package

Length : Max length 12M

Type : Seamless

OD. Range : 6mm – 114.3mm

Standard : DIN2393

Grade : ST34.2, ST37

Wall thickness : 1mm-15mm

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DIN2393 ST34.2 Welded Precision Steel Tube for Gas Spring

DIN 2393 Standard applies to welded precision steel tubes; and in compliance with ISO/DIS 3304.DIN 2393 Precision Welded Steel Tubes is mainly applied for Auto and motorcycle shock absorbers, Gas springs, Hydraulic system steel tubes, Electric industry, Construction machinery, Heat exchanger and Condenser.

Precision steel tubes
1. Automotive fields
A. Fuel injection lines/nozzles
B. CNG (Compressed Nature Gas) tube-- Burst pressure: 1307Bar, Working Pressure: around 350bar
C. Drive transmission: Steering column elements
D. Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel driveshafts
2. Hydraulic Fields
A. Hydraulic circuits (HPL), pneumatic lines, and hydraulic suspension
B. Hydraulic cylinders (HPZ)

Delivery Condition:

Delivery Condition Specification
BK ( +C ) Tubes don't undergo heat treatment following the final cold forming,thus have a rather hig-h resistance to deformation
BKW ( +LC ) The final heat treatment is follwed by cold drawing involving limted deformation. Appopriat-e further processing allows a certain degree of cold droming( eg: handing expanding)
BKS ( +SR )

Heat treatment is applied following the last cold forming process, subject to appropriate

procession conditions, the increate in the residual stresses,involved enables both forming

and maching to a certain degress.
GBK ( +A ) The last cold forming process followed by annealing in controlled atmosphere.
NBK (+N ) The last cold forming process is followed by annealing above the upper transformation poi-nt in a controlled atmosphere.


DIN2393 ST34.2 Specifications:

Grade and Chemical Composition ( ％ )

Chemical Composition (%, max)
Steel Grade
C
Si
Mn
S
P
RSt 34-2
0,15
0,30
0,60
0,025
0,025
RSt 37-2
0,17
0,30
0,70
0,025
0,025
St 44-2
0,21
0,30
1,10
0,025
0,025


Mechanical properties

Steel Grade
Tensile Strength, N/mm2 (min)
Предел текучести, N/mm2 (min)
Elongation, % (min)
NBK - normalized
RSt 34-2
340 - 470
235
25
RSt 37-2
440 - 570
255
21
St 44-2
560 - 630
355
22
BK - without heat treatment
RSt 34-2
480
-
6
RSt 37-2
580
-
5
St 44-2
640
-
4
GBK - annealed
RSt 34-2
315
-
28
RSt 37-2
390
-
25
St 44-2
490
-
21

DIN2393 Seamless Precision Steel Tube For Heat Exchanger

DIN2393 Seamless Precision Steel Tube For Heat Exchanger


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DIN2393 Seamless Precision Steel Tube

      

DIN2393 stainless steel precision tube

      

Heat Exchanger precision metal tubing

      
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