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Home > Steel Pipe> DIN 17175 13CrMo4-4 Seamless Alloy Steel Pipe
DIN 17175 13CrMo4-4 Seamless Alloy Steel Pipe image
  • DIN 17175 13CrMo4-4 Seamless Alloy Steel Pipe image 1
  • DIN 17175 13CrMo4-4 Seamless Alloy Steel Pipe image 2
  • DIN 17175 13CrMo4-4 Seamless Alloy Steel Pipe image 3
  • DIN 17175 13CrMo4-4 Seamless Alloy Steel Pipe image 4
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DIN 17175 13CrMo4-4 Seamless Alloy Steel Pipe

Standard: DIN 17175

Size: 19mm-350mm

W.T.: 1.5mm-50mm

Shape: Round

Production Type: Cold drawn or Hot rolled

Length: Single random length/ Double random length or as customer’s actual request max length is 10m

Grade: ST35.8, ST45.8, 15Mo3, 13CrMo44, 10CrMo910

DIN 1.7335 Seamless Tube 13crmo4-5 pipe supplier DIN 17175 seamless boiler tubes DIN17175 ST35.8 Boiler tubes DIN17175 ST45.8 Boiler tubes DIN17175 15Mo3 seamless tubes DIN17175 13CrMo44 seamless tubes DIN17175 10CrMo910 Seamless tubes DIN17175 Seamless tubes

What is DIN 17175 13CrMo4-4 Seamless Steel Tube?

DIN 17175 13CrMo4-4 seamless steel tubes are made from alloyed steel and are used in various industries where high temperature and pressure conditions are present.
The chemical composition of the 13CrMo4-4 steel consists of carbon, chromium, molybdenum, and sometimes vanadium. The molybdenum content provides the tubes with increased strength and resistance to high-temperature oxidation.

The 13CrMo4-4 seamless steel tubes are suitable for applications in steam boilers, gas turbines, and chemical plants, where temperatures can exceed 500°C. The tubes are resistant to corrosion and are ideal for use in highly corrosive environments.

DIN 17175 13CrMo4-4 Seamless Steel Tubes can be used to manufacture steam boilers, pipes, pressure vessels and instruments operating at temperatures up to 600°C and at high temperatures.

 

DIN 17175 13CrMo4-4 Equivalent

ASTM EN ASME ISO GB
ASTM A335 P12 EN 10216-2 13CrMo4-5 ASME SA213 T12 ISO 9329-2 13CrMo4-5 GB/T 5310 15CrMoG
Specification Parameters
Basic Information

Chemical Components of DIN 17175 13CrMo4-4

Grade Chemical composition in % by mass
C Si Mn P S Cr Mo
13CrMo4-4 0.10 – 0.18 a 0.10 – 0.35 0.40 – 0.70 0.035 max 0.035 max 0.70 – 1.10 0.45 – 0.65

a: When the wall thicknesses ≥30 mm the carbon content is permitted to be 0.02 % higher.

Mechanical Properties of DIN 17175 13CrMo4-4

Tensile Requirement

  • Tension and Impact Tests at Room Temperature
Grade Tensile strength Yield point for wall thickness in mm Elongation
at fracture (Lo = 5do)		 Impact strength
(DVM specimens)
≤16 ＞16 ≤40 ＞40 ≤60 longitudinal transverse transverse
Mpa Mpa, min %, min J, min
13CrMo4-4 440 – 590 290 290 280 22 20 34
  • Minimum 0.2 % Yield Limit at Elevated Temperatures
Grade Wall thickness
s		 0.2 %-yield limit at
200 ℃ 250 ℃ 300 ℃ 350 ℃ 400 ℃ 450 ℃ 500 ℃ 550 ℃
mm MPa, min
≤40 240 230 215 200 190 180 175 —
40＜ s ≤60 230 220 205 190 180 170 165 —
60＜ s ≤80 220 210 195 180 170 160 155 —

Ring Expanding Test

Grade Expansion in ring expanding test (provisional data) for diameter ration di/da
≥0.9 ≥0.8 ＜0.9 ≥0.7 ＜0.8 ≥0.6 ＜0.7 ≥0.5 ＜0.6 ＜0.5
%, min
13CrMo4-4 6 8 10 15 20 30

Dimensions Tolerance

Project Standard Size range Tolerance
Outer diameter DIN17175 Hot rolled steel pipe OD ≤ 100mm ± 0.75%( Min ± 0.5mm )
OD＞ 100~ 320mm ± 0.9%
Cold drawn steel pipe OD ≤ 120mm ± 0.6%( Min ± 0.25mm )
Wall thickness DIN17175 OD ≤ 130mm WT ≤ 2Sn +15%~-10%
WT ＞ 2Sn~4Sn +12.5%~-10%
WT ＞ 4Sn ± 9%
130 ＜ OD ≤ 320mm WT ≤ 0.05OD +17.5%~-12.5%
0.05OD ＜ WT ≤ 0.11OD ± 12.5%
WT ＞ 0.11OD ± 10%
Service Support
DIN 17175 13CrMo4-4 Seamless Alloy Steel Pipe

DIN 17175 Tube Inspection & Test

  • Flattening Test—One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot
  • Flaring Test—One flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot
  • Hydrostatic or Nondestructive Electric Test—Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the purchase order.

Test

  • Chemical composition verification test
  • hydrostatictest
  • Tensile test
  • Notched impact test
  • Yield strength test
  • Ring test
  • Nondestructive testing
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