DIN 2391

DIN 2391 standard specifies the Seamless steel tubes used forMechanical and Automobile.

Cold Drawn Seamless Carbon Steel Tube ASTM A179

钢/钢级的主要产品：DIN2391-1（ST35，ST45，ST52）。

Application:

  • 为atuo usd;
  • for machinery use;
  • 油缸管;
  • 摩托车减震器钢管;
  • 自动减震器内筒
DIN2391 ST52无缝珩磨管
DIN2391 ST52无缝珩磨管

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Features Specifications
OD(mm) Wall Thickness Unit(mm)
2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28 ● ● ● ● ● ●
Φ32 ● ● ● ● ● ●
Φ34-Φ36 ● ● ● ● ● ●
Φ38 ● ● ● ● ● ●
Φ40 ● ● ● ● ●
Φ42 ● ● ● ● ●
Φ45 ● ● ● ● ● ●
φ48-φ60 ● ● ● ● ● ● ●
φ63.5 ● ● ● ● ● ● ●
Φ68-Φ73 ● ● ● ● ● ●
Φ76 ● ● ● ● ● ● ● ● ● ●
Φ80 ● ● ● ● ● ● ● ● ● ●
Φ83 ● ● ● ● ● ● ● ● ● ●
Φ89 ● ● ● ● ● ● ● ● ● ●
Φ95 ● ● ● ● ● ● ● ● ● ●
Φ102 ● ● ● ● ● ● ● ● ● ●
Φ108 ● ● ● ● ● ● ● ● ● ●
Φ114 ● ● ● ● ● ● ● ● ●
Φ121 ● ● ● ● ● ● ● ● ●
Φ127 ● ● ● ● ● ● ● ● ●
Φ133 ● ● ● ● ● ● ● ● ●
Φ140 ● ● ● ● ● ● ● ●
Φ146 ● ● ● ● ● ● ● ●
Φ152 ● ● ● ● ● ● ● ●
Φ159 ● ● ● ● ● ● ● ●
Φ168 ● ● ● ● ● ● ● ●
等级和化学成分（％）
年级
 Chemical Composition(%):
c max. Si Max Mn P max S max
St 35 0.17 0.35 ≥0.40 0.025 0.025
St 45 0.21 0.35 ≥0.40 0.025 0.025
St 52 0.22 0.55 ≤1.60 0.025 0.025

钢级 Chemical Composition(%):
Steel name 钢号 c max. Si Max Mn P max S max Al min
E215. 1.0212 0.10 0.05 0.70 0.025 0.025 0.025
E235. 1.0308 0.17 0.35 1.20 0.025 0.025 -
E355. 1.0580 0.22 0.55 1.60 0.025 0.025 -
Mechanical Properties(Mpa)
钢级 交货条件的最小值
钢铁名称 钢号 BK BKW BKS GBK. NBK
R M % R M % R M ReH % R M % R M ReH %
MPA. MPA. MPA. MPA. MPA. MPA. MPA.
ST 30 SI. 1.0211 430 8 380. 12 380. 280. 16 280. 30. 290至420 215 30.
St 30 Al 1.0212 430 8 380. 12 380. 280. 16 280. 30. 290至420 215 30.
St 35 1.0308 480 6 420 10 420 315 14 315 25 340 to 470 235 25
St 45 1.0408 580 5 520 8 520 375 12 390. 21 440 to 570 255 21
St 52 1.0580 640 4 580 7 580 420 10 490 22 490 to 630 355 22
Inspection and test list for the DIN 2391 Standard.
Inspection or test types Test frequency
内部测试 验收测试
Chemical analysis M M
Tensile testing M One per tested batch
Flattening test or extension test M Two per tested batch
维度验证 M M
视力检查 M M
NDT in order to identify leaks 个人 个人

JIS.Number and Corrensponding Foreign Standards (DIN2391)

JIS.
ASTM
BS
DIN
NF
ISO

索引号

标准号码

年级

Tupe

标准号码

年级

Tupe

标准号码

年级

Tupe

标准号码

年级

Tupe

标准号码

年级

Tupe

标准号码

年级

Tupe
G3445
STKM11A
C
A512
MT1010
C
1717.
ERWC1
C
2391
ST30SI.
C
3304
R28
C
C017
A513
MT1010
C
St30A1
C
3305
"
C
2393
St28
C
3306
"
C
RST28
C
2394
St28
C
UST28.
C
RST28
C
STKM12A
C
A512
MT1015
C
1717.
ERWC2
C
2391
St37-2
3304
R33
C
A513
MT1015
C
6323
HFS3
C
RSt37-2
3305
"
"
STKM12B
C
A512
MT1015
C
2394
St37-2
3306
"
"
A513
MT1015
C
UST38-2
A519
MT1015
C
RST-2
STKM12C
C
1717.
CEWC2
C
A49-322
TU37b
C
"
CFSC3.
C
A49-327
TU37b
C
6323
CFS3
C
"
CFS3A
C
STKM13A
C
A312
MT1020
C
1717.
ERWC3
C
2391
St45
C
A49-324
TU37b
C
2937
TS4
C
A513
MT1020
C
2393
St44-2
C
A49-330
TU37b
C
3304
R37
"
2394
St44-2
C
A49-343
TU38b
C
3305
"
"
STKM13B
C
A513
MT1020
C
3306
"
"
STKM13C
C
1717.
CEWC3
C
"
CFSC4.
C
6323
CFS4
C
STKM14A
C
A513
MT1020
C
6323
HFS4.
C
2937
TS9
C
3304
R42
"
STKM14B.
C
6323
HFS5.
C
3305
R42
C
STMK14C
C
3306
"
"
STKM15A.
C
A513
1030
C
A519
1030
C
STKM15C.
STKM16A
C
A519
1040
C
A49-311
TUXC35
C
A49-312.
TUXC35
C
STKM16C
C
STKM17A
C
A519
1050
C
6323
HFS8.
C
STKM17C
C
6323
CFS8
C
stkm18a.
C
A519
1518.
C
1717.
ERWC5
C
A49-310
TU52B.
C
A49-311
TU52B.
C
A49-312.
TU52B.
C
STKM18B.
C
A49-321.
TU52B.
C
A49-323
TU52B.
C
A49-326.
TU52B.
C
STKM18C.
C
A49-330
TU52B.
C
A49-341
TS42a
C
"
TS47A
C
A49-343
TS18M5
C
STKM19A.
C
A519
1524.
C
2391
ST52
C
2937
TS18
C
2393
ST52-3
C
2938
Gr.1
C
2394
ST52-3
C
3304
R50.
C
3305
R50.
C
3306
R50.
C
STKM20A
C

无缝管规范，标准和识别

无缝管s are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.