Pneumatic Springs DIN 2393 Precision Steel Tube

Welded precision steel tubes for pneumatic springs​

Quick detail:

Standard :DIN 2393 EN10305 ASTM A519 GOST 5005 -82 DIN2394 JIS-G3445 DIN2391 BS6323 GOST8734-75

IS3074 ASTM A513
Material:St37.2 St 44.2 St52.3 etc
Delivery condition:NA,No heat treatment

Decription:

Straightness ≤0.5mm/1m
Roundness ≤0.5

OD range:15-200mm WT range: 0.8-16mm
OD tolerance:+/-0.06mm WT:(+/-0.03)
ID surface:≤0.4μm

Feature: High precision,Nice inner hole surface

Grade and comparison

DIN 2393 limit deviations for the diameter of heat treated tubes

The limit deviations for diameters given in table 2 allow for ovality and apply for the cold finished Hare BK and cold

finished soft BKW conditions.

Application:

Motorcycle front fork ,Motor outer shell,Automobile shock absorber cylinder,Dust cover,Automobile shock absorber

reservior,refrigaretion gas reservior
Production process : Material incoming inspection Surface treatment,Cold rolling Inspection,Rust preventive work,

Warehouse storage .

Standard relative information:

 Din 2393 this standard specifies dimensions for welded precision steel tubes and is to be used in conjuction with 

Din 2393 part2 which states the relevant technical delivery conditions, The preferred sizes listed in table 2 are

mainly used in mechanical and automotive engineerig.

Where steel tubes of dimensions specified in this standrad are to comply with the technical delivery conditions 

listed in subclause 1.2 of din 2393 part2,they shall be ordered in quality grade C.

Dedignation:

Designation of a welded precision steel tube,made of St52-3 steel,with an outside diameter,D of 18mm and an inside 

diameter D1 of 13mm (ID13),cold finished (Hard)(BK):

Tube DIN 2393-St52-3 BK 18XID13

Designation of a welded precision steel tube,made of St52-3 steel,with an outside diameter,D of 18mm and  a wall thickness 

T,of 2.5mm ,cold finished (hard)|(BK):

Tube DIN 2393-St52-3 BK 18X2.5

Designation of a welded precision steel tube,made of St52-3 steel,with an outside diameter,D of 13mm and a wall thickness

T,of 2.5mm ,cold finished (hard)|(BK):

Tube DIN 2393-St52-3 BK 13X2.5

Designation of a welded precision steel tube,made of St37.8 steel,quanlity grade C,with an outside diameter,D of 25mm and a wall thickness

T,of 1.5mm ,normalized(NBK),complying with the techenical delivery conditions specified in DIN171777:

Tube DIN 2393 -C-25x1.5-DIN17177-St37.8 NBK