• DIN 17175 St 45.8 seamless boiler tubes for high, middle and low pressure purpose

DIN 17175 boiler tubes include tubes for headers of heat-resistant steels used in the construction of boilers, pipe-lines, pressure vessels and equipment for service up to 600 ℃ and simultaneous high pressures, where the total stress and the relevant scaling conditions can raise or lower the temperature limit.

Specification

Standard DIN17175
Steel Grade/Material ST35.8, ST45.8, 15Mo3, 13CrMo44, 10CrMo910
Outer Diameter(OD) 1.5”-28”(38mm-720mm)
Wall Thickness(WT) 0.102”-2.362”(2.6mm-60mm)
Length 5.8-16m or OEM
Packing Plastic cap or bundling
Surface Treatmengt Black paint,3LPE,3LPP,FBE or OEM
Section Shape Round
Technique Seamless hot rolled
Application Used in the construction of boilers, pipe-lines, pressure vessels and equipment for service up to 600 ℃ and simultaneous high pressures
Place of Origin China
MOQ 25 ton
Transportation 1.Sea port:Tianjin Xingang port,Qingdao port,Shanghai Luojing port
→America,Europe,Africa,Middle East,India, Pakistan,Japan,Korea,
Australia…(shipping)

2.Land port:Alataw pass port(Пограничный пункт “Алашанькоу”)
Khorgos port(Пограничный пункт “Хоргос”)
→East Asia, Uzbekistan,Kazakhstan,Kyrgyzstan…(Train)
Erlianhot port→Mongolia(Train and Truck)
Manchuria port→Russia(Train and Truck)

Standard Grade Chemical Components (%)
C Si Mn P S Mo Cr
DIN17175 St 35.8 ≤0.17 0.10-0.35 0.40-0.80 ≤0.040 ≤0.040 / /
St 45.8 ≤0.17 0.10-0.35 0.40-0.80 ≤0.040 ≤0.040 / /
15Mo3 0.12-0.2 0.10-0.35 0.40-0.80 ≤0.035 ≤0.035 0.25-0.35 /
13CrMo44 0.10-0.18 0.10-0.35 0.40-0.70 ≤0.035 ≤0.035 0.45-0.65 0.70-1.1
10CrMo910 0.08-0.15 ≤0.50 0.40-0.70 ≤0.035 ≤0.035 0.90-1.2 2.0-2.50
Standard Grade Mechanical properties
Tensile Strength (Mpa) Yield Strength (Mpa) Elongation (%)
DIN17175 St 35.8 360-480 ≥235 ≥25
St 45.8 410-530 ≥255 ≥21
15Mo3 450-600 ≥270 ≥22
13CrMo44 440-580 ≥290 ≥22
10CrMo910 450-600 ≥280 ≥20

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