DIN 17458 Austenitic Seamless Stainless Steel Pipe

DIN 17458 Austenitic Seamless Stainless Steel Pipe
 
Standard: DIN 17458
 
 
DIN 17458 austenitic seamless stainless steel pipe is mainly used in pressure vessel chemical plant and pipeline transportation.
 
 
DIN 17458 Austenitic Seamless Stainless Steel Pipe can be supplied by Category 1 and category 2.
The difference between steel pipes in test category 2 and steel pipes in test category 1:
There are more detailed inspection procedures for steel pipes in Test Category 2.



Main steel grades:
X5CrNi18 10, X2CrNi19 11, X2CrNiN18 10, X6CrNiTi18 10, X6CrNiNb 18 10, X5CrNiMo 17 12 2, X2CrNiMo 17 13 2, X6CrNiMoTi 17 12 2, X6CrNiMoNb 17 12 2, X2CrNiMoN 17 13 3, X2CrNiMo 18 14 3, X5CrNiMo 17 13 3, X2CrNiMoN 17 15.5
 
 
 
DIN 17458 Austenitic Seamless Stainless Steel Pipe Quick Details
Company Name: Beite steel pipe
Country/Region: China
FOB Price: US $1600-2300/Ton | 1 Ton/Tons (Min. Order)
Port of Shipment: Tianjin, China
Payment: L/C or T/T
Delivery: 7-15 days after payment
Package: Standard export package, suit for all types of transport, or as required
Certificate: ISO 9001-2000, PED 97/23/EC, ASME, DNV
 

DIN 17458 Austenitic Seamless Stainless Steel Pipe Dimensional Range & Specification
Outside Diameter: 4.0mm - 200.0mm
Wall thickness: 3.5mm - 12.5mm
Length: 6000mm, 12000m or specified length as required.
 
 
Manufacture:
Steel pipes shall be produced by hot-working, cold-rolling, hot-pressing and cold-drawing or by combination of these procedures.
 
 
Delivery status & heat treatment
DIN 17458 austenitic seamless stainless steel pipe. Accurate heat treatment requires that the pipe be quenched in water after hot working and solution annealing.
 
 
 
Chemical composition of DIN 17458 Austenitic Seamless Stainless Steel Pipe
 

Steel Grade		Chemical composition,%
Grade	Material	C,≤	Cr	Mo	Ni	Other
X5 CrNi 18 10 X2 CrNi 19 11 X2 CrNiN 18 10 X6 CrNiTi 18 10 X6 CrNiNb 18 10	1.4301 1.4306 1.4311 1.4541 1.4550	0.07 0.030 0.030 0.08 0.08	17.0 19.0 18.0 20.0 17.0 19.0 17.0 19.0 17.0 19.0	- - - - -	8.5 10.5 10.0 12.5 8.5 11.5 9.0 12.0 9.0 12.0	-   -   N: 0.12~0.22   Ti: 5% C, up to 0.80   Nb: 10% C, up to 1.00
X5 CrNiMo 17 12 2 X2 CrNiMo 17 12 2 X6 CrNiMoTi 17 12 2 X6 CrNiMoNb 17 12 2	1.4401 1.4404 1.4571 1.4580	0.07 0.030 0.08 0.08	16.5 18.5 16.5 18.5 16.5 18.5 16.5 18.5	2.0 2.5 2.0 2.5 2.0 2.5 2.0 2.5	10.5 13.5 11.0 14.0 10.5 13.5 10.5 13.5	-   -   Ti: 5% C, up to 0.80   Nb: 10% C, up to 1.00
X2 CrNiMoN 17 13 3 X2 CrNiMo 18 14 3 X6 CrNiMo 17 13 3	1.4429 1.4435 1.4436	0.030 0.030 0.07	16.5 18.5 17.0 18.5 16.5 18.5	2.5 3.0 2.5 3.0 2.5 3.0	11.5 14.5 12.5 15.0 11.0 14.0	N:0.14~0.22; S≤ 0.025   S ≤0.025   S≤ 0.025
X2 CrNiMoN 17 13 5	1.4439	0.030	16.5 18.5	4.0 5.0	12.5 14.5	N:0.12 ~0.22; S≤ 0.025

 
 


Mechanical properties of DIN 17458 Austenitic Seamless Stainless Steel Pipe
 

Steel Grade		2%minimum guaranteed stress	1%minimum guaranteed stress	Tensile strength, MPa	Elongation		Minimum impact energy		Intergranular Corrosion Resistance
Grade	Material				Portrait	Transverse	Portrait	Transverse	Supply Conditions	Follow-up processing after casting without heat treatment
X5 CrNi 18 10 X2 CrNi 19 11 X2 CrNiN 18 10 X6 CrNiTi 18 10 X6 CrNiNb 18 10	1.4301 1.4306 1.4311 1.4541  1.4550	195 180 270 200 180 205	230 215 305 235 215 240	500~700 460~680 550~760 500~730 460~680 510~740	40 40 35 35 35 35	35 35 30 30 30 30	85	55	300 350 400 400 400 400	300 350 400 400 400 400
X5 CrNiMo 17 12 2 X2 CrNiMo 17 12 2 X6 CrNiMoTi 17 12 2  X6 CrNiMoTi 17 12 2  X6 CrNiMoNb 17 12 2	1.4401 1.4404 1.4571  1.4571  1.4580	205 190 210 190 215	240 225 245 225 250	510~710 490~690 500~730 490~690 510~740	40 40 35 35 35	30 30 30 30 30	85	55	300 400 400 400 400	300 400 400 400 400
X2 CrNiMoN 17 13 3 X2 CrNiMo 18 14 3 X6 CrNiMo 17 13 3	1.4429 1.4435 1.4436	295 190 205	330 225 240	580~800 490~690 510~710	35 40 40	30 30 30	85	55	400 400 300	400 400 300
X2 CrNiMoN 17 13 5	1.4439	285	315	580~800	35	30	85	55	400	400

 
Note:Thickness of applicable pipe less than 50 mm
 
 
 
Classification of DIN 17458 Austenitic Seamless Stainless Steel Pipe
 

Code	Types	Surface Polishing	Remarks
C1	Rust Removal by Hot Processing Heat Treatment	Metal descaling
C2	Hot working heat treatment pickling
f	Mechanical and Chemical Rust Removal Cold Processing Unheat Treatment	Metal polishing is smoother than C1 and C2	Cold Working Change without Continuous Heat Treatment   Property depends only on the degree of processing.   Austenitic steel pipe
g	Cold working and heat treatment without rust removal	Descaling	Applicable only to parts that have been de-rusted or processed
h	Cold Processing, Heat Treatment and Pickling	Metal pickling gloss is smoother than C2
m	Cold Processing Scaleless Heat Treatment	Metal annealing gloss is smoother than h
n2	Refining Heat Treatment of Polishing Rail System by Secondary Cold Rolling	Metal annealing gloss is smoother than h or M	Particularly suitable for grinding and polishing
o	Polish	The method and degree of metal grinding should be agreed upon at the time of ordering.	Conditions h m and N 2 are usually used as initial conditions
p	Polishing	Quality and method of metal polishing and polishing should be agreed upon at the time of ordering.

 
Note:Orders should indicate that polishing or polishing is used internally or externally or both.
 

 
Testings
Casting Analysis
Tension testing at high temperature
Shock detection
Leveling test
Non-destructive testing
Leakproof Seal Inspection
Naked eye test
Material Certification Inspection
Dimension Inspection
Thermal Tensile Test
Intergranular corrosion test
 
 
 
 
Mark
Each steel pipe shall be clearly marked at one end as follows:
 
(1) Manufacturer's marking;
(2) Steel grade material number
(3) Code of Steel Tube Type
(4) Additional code S indicates that the pipe belongs to seamless type. If the pipe is heated by 1.4541 or 1.4571 steel, code X is added.
(5) 1 or 2 denotes detection category 1 or 2
(6) Inspection batch number or casting number for steel pipes of inspection category 1
(7) The outer diameter of steel pipes with steel pipe number or steel pipe casting type of inspection category 2 shall not exceed 114.3 mm or the code for certifying casting.