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DIN 17173-85 Seamless Circular Tubes

DIN 17173-85 Seamless Circular Tubes

This standard applies to seamless circular tubes made from carbon and alloy steels with low temperature toughness or low temperature applications.

Description

1.Chemical composition

Grade

Mfg.

process

Chemical composition %
CSiMnPS
NiCrMoothers
TSt35NS
0.170.350.400.0300.025
---

Al

 0.020 

min

TSt35VS0.170.350.50-0.800.0300.025---

Al 

0.020 

min

26CrMo4S0.22-0.290.350.70-1.500.0300.025-0.90-1.20--
11MnNi53S
0.140.500.85-1.650.0300.0250.30-0.80--

Al 0.020

 min

13MnNi63S0.180.500.85-1.650.0300.0250.30-0.85---
10Ni14S0.150.350.30-0.800.0250.0203.25-3.75---
12Ni19S0.150.350.30-0.800.0250.0204.50-5.30---
X8Ni19S0.100.350.30-0.800.0250.0258.00-10.00---

2.Mechanical property

GradeMaterial numberMin Yield pointTensile strength

Remarks

(similar to JIS)

TSt35N1.0358225340-460-
TSt35V1.7219

t 25mm Max255

25mm<t40mmMax235

340-490
-
26CrMo426CrMo4

t25mmMax440

25mm<t40mmMax420

560-740-
11MnNi531.6212

t 25mm Max285

13mm<t25mmMax275

25mm<t40mmMax265

410-530-
13MnNi631.6217

t 13mmMax355

13mm<t25mmMax345

25mm<t40mmMax335

490-610-
10Ni141.5837

t 25mmMax 345

25mm<t40mmMax335

470-640(STBL46)
12Ni191.5680

t 25mmMax390

25mm<t40mm Max380

510-710-
X8Ni19
1.5662

t 25mm Max490

25mm<t40mmMax480 

640-840(STBL70)


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