Boiler Pipe

Request a Quote

View All: http://hdboilerparts.com/6-boiler-manifold-headers.html

For low to medium pressure boilers, Yunahua has an array of 4-30mm thick seamless steel pipes ranging in diameter from Φ76-Φ273mm. With an annual production capacity of 300,000 tons of steel pipes, we can deliver customer orders quickly and efficiently.

Each one of our steel tubes is made of quality carbon steel through a process known as hot rolling. We can build our hot rolled seamless steel pipes in a variety of standards, including DIN, JID, ASME and EN.

Not only do our carbon steel pipes have excellent chemical and physical properties, but they are put through hydrostatic tests, flanged, flattened, and expanded at both ends to check if the strength, elasticity, and pressure resistance meet industry standards. Cold rolled steel pipes go through heat treatments before delivery.

Standards
GB3087-2008, BS3059

Uses
This series of steel seamless pipes are primarily used in low to medium pressure boilers, including locomotive boilers, general purpose industrial boilers, and domestic boilers. The seamless pipe can handle a maximum steam pressure of 6MPa, serve as a flue pipe and steam generating tube, and carry superheated steam and boiling water in the boiler system. It is also widely seen in urban plumbing.

Steel Grades

Standards	Steel Grades
GB3087	10 , 20
GB5310	20G, 20MnG, 25MnG, 15CrMoG, 12Cr1MoVG, 12Cr2MoG, 12Cr2MoWVNbB
DIN17175	ST35.8, ST45.8, 15Mo3, 13CrMo44, 10CrMo910
ASME SA-106	SA-106B, SA-106C
ASME SA-210M	SA-210A1, SA-210C
ASME SA-213M	T11, T12, T22, T23, T91
ASME SA-335M	P5, P9, P11, P12, P22, P23, P91, P92
ASME SA-192M	SA-192
ASME SA-333	SA333 Grade I, SA333 Grade VI
JIS G 3461	STB340, STB410, STB510
JIS G 3462	STBA 12, STBA 13, STBA 20, STBA 23, STBA 24, STBA 26
EN10216-1	P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P265TR2
EN10216-2	P195GH, P235GH, P265GH, 16Mo3, 13CrMo4-5, 10CrMo9-10
EN10028-2	P235GH, P265GH, P355GH, 16Mo3, WB36

Technical Specifications

Outer Diameter		Wall Thickness mm
inch	mm	2	2.6	3.6	4.5	5.5	7.1	9.5	12.5	13	14-16	17-19	20-25	31-60	61-70	81-90	91-120
0.84	21.3
1.05	26.7
1.315	33.4
1.66	42.2
1.9	48.3
2.375	60.3
2.875	73
3.5	88.9
4	101.6
4.5	114.3
5.563	141.3
6.625	168.3
8.625	219.1
10.75	273
12.75	323.9
14	355.6
16	406.4
18	457
20	508
22	559
24	610
26	660.4
28	711.2
30	762
32	813
34	864
36	914
38	965