DIN 2391 ST35 BK Thick Wall High - Precision Steel Tube , Round Cold Rolled Pipe
| Place of Origin: | Zhejiang |
|---|
Company Profile
| Location: | Wenzhou, Zhejiang, China (Mainland) |
|---|---|
| Business Type: | Manufacturer |
| Main Products: | Seamless Stainless Steel Pipe, Welded Stainless Steel Pipe, Food Grade Stainless Steel Tubing |
Product Detail
| Model No.: | St35, St37, St45, St52, E235, E355 etc |
|---|
Product Description
DIN 2391 ST35 BK Thick Wall High - Precision Steel Tube , Round Cold Rolled Pipe
Quick Detail:
- Grade:20#,45#,16Mo,16Mn,A106(B,C),St37,St52,Q345,10#-45#,Mo,A53-A369,ST35-ST52,Q195-Q345
- Standard:BS 1387,JIS G3461-2005,BS,JIS
- Section Shape:Round
- Thickness:8 - 40 mm
- Outer Diameter: 10 - 168 mm
- Application:Structure Pipe
- Technique:Cold Rolled
- Certification:CE
- Special Pipe:Thick Wall Pipe
- Alloy Or Not:Non-alloy
Description:
- Product Item No.: 005Precision-Cosco Steel
- Grade: St37,St52,St45,St35.8,St37-2,St35.4,St52.4,St45-4,ST35,ST37.4,ST54,ST35-ST52
- Standard:JIS G3445-2006,DIN 1626,DIN 2391,DIN 17175,DIN EN 10305,DIN 2448,ANSI A210-1996,JIS,GB,DIN,ASTM
- Certification: ISO 9001/ TS 16949
- Alloy Or Not:Non-alloy
- Standard::for high pressure pipe
- Certificate: ISO9001 TS16949
- Delivery condition::BK, GBK, BKW, BKS or NBK for high pressure pipe
Standard:
China Standard GB8162-2008, GB3639-2000
American Standard ASTM A106, ASTM A519, ASTM A513,ASTM A179
Germany Standard DIN2391, DIN2445
Japanese Standard JIS G3445 etc
European Standard EN10305
Specification
|
Designation |
Symbol |
Description |
|
Cold finished (hard) |
BK(+C) |
Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation |
|
Cold finished (Soft) |
BKW |
The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding) |
|
Cold finished and stress-relieved |
BKS(+SR) |
Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
|
Annealed |
GBK(+A) |
The last Cold forming process is followed by annealing in a controlled atmosphere. |
|
Normalized |
NBK(+N) |
The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
DIN 2391 Precision seamless steel tube
This Standard applies to seamless precision steel tubes; and, in compliance with ISO/DIS 3304, those tube dimensions have een selectied from the range of manufactura le tu e dimensions which are mainly used as design elements
If tubes having the tolerances and are produced according to the technical conditions of deivery as specified in this Standard are to e used as pipelines, then the dimensions specified in DIN 2448 may from time to time be used. These tubes must be ordered according to quality grade C.
|
Grade |
Mfg. Process |
Chemical composition
|
|||||||||
|
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Others |
|||
|
St30Si |
S |
0.10Max |
0.30Max |
≤0.55 |
0.040Max |
0.040Max |
- |
- |
- |
- |
|
|
St30A1 |
S |
0.10Max |
0.05Max |
≤0.55 |
0.040Max |
0.040Max |
- |
- |
- |
Al deoxydized |
|
|
St35 |
S |
0.17Max |
0.35Max |
≥0.40 |
0.050Max |
0.050Max |
- |
- |
- |
- |
|
|
St45 |
S |
0.21Max |
0.35Max |
≥0.40 |
0.050Max |
0.050Max |
- |
- |
- |
- |
|
|
St52 |
S |
0.22Max |
0.55Max |
≥1.60 |
0.050Max |
0.050Max |
<
| ||||