DIN 17175 steel seamless pipes

DIN 17175 alloy steel pipe is just a big class,and it has many classifivations.

We mainly produce DIN 17175 ST35.8,DIN 17175 ST45.8, and 10CrMo910 steel pipes.

Application: For high, middle, low pressure boiler and pressure purpose

Chemical composition DN17175

Steel Grade	C	Si	Mn	S	P	Cr	Mo	V
St 35.8	≤0.17	0.10-0.35	0.40-0.80	0.020	0.025
St 45.8	≤0.21	0.10-0.35	0.40-1.20	0.020	0.025
15Mo3	0.12-0.20	0.10-0.35	0.40-0.80	0.020	0.025		0.25-0.35
13CrMo44	0.10-0.18	0.10-0.35	0.40-0.70	0.020	0.025	0.70-1.10	0.45-0.65
10CrMo910	0.08-0.15	≤0.50	0.40-0.70	0.020	0.025	2.00-2.50	0.90-1.20
14MoV63	0.10-0.18	0.10-0.35	0.40-0.70	0.020	0.025	0.30-0.60	0.50-0.70	0.22-0.32
12Cr1MoV	0.08-0.15	0.17-0.37	0.40-0.70	0.020	0.025	0.90-1.20	0.25-0.35	0.15-0.30

Mechanical Property DN17175

Grade	Tensile strength (Mpa)	Yield point(Mpa) not less than	Elongation(%) not less than	Impact(J) not less than
St35.8	360-480	235(T<16mm） 225(t≥16mm)	25	"
St45.8	410-530	255(T<16mm） 245(t≥16mm)	21	"
15Mo3	456-600	270	22	"
13CrMo44	440-590	290	22	"
10CrMo910	450-600	280	20	"
14MoV63	460-610	320	20	55
12Cr1MoV	470-640	255	21	41

Delivery Condition:Annealed, Normalized, Normalized and Tempered

Inspection and Test:

Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test,No-destructive Test, Hydrostatic Test.

Surface treatment:

Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting

Inner packing:

Caps on two ends of every pipe

Package:

bare packing/bundle packing/wooden carton packing.