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Black paint, Varnished,PE coated,Galvanized,hdpe,CustomedQ: Are u a manufacturer? A: Yes, we are seamless steel tube manufacturer locates in liaocheng city, Shandong province China Q: Can I have a trial order only several tons? A: Of course. We can ship the cargo for u with LCL serivece. (Less container load) Q: Do u have payment superiority? A: For big order, 30-90 days L/C can be acceptable. Q: If sample free? A: Sample free, but the buyer pays for the freight.Marine steel pipes and tubes are a sort of specialized steel pipes for marine purposes. Hi-Sea Marine as a professional supplier of marine steel, we can provide you a broad product range and a full line of specification. With regard to marine steel pipes and tubes, we are available to supply pipes made of various kinds of materials, such as stainless steel, carbon steel, alloy... The pipes conform to requirements of ASTM, ASME, SPI, EN, JIS, DIN, GB, RS, ABS, BV, CCS, RINA... We can customize pipes in accordance with your requirements, available for large diameter, small diameter, heavy wall, thin wall... Specifications of Marine Seamless Steel Pipe Table 1 Grade of Seamless Steel Pipe (Pressure Tubing)
Pipe Range
I
Ⅱ
Ⅲ
Designed Pressure(Mpa)
Designed Temperature (℃)
Designed Pressure (Mpa)
Designed Temperature (℃)
Designed Pressure (Mpa)
Designed Temperature (℃)
>
≤
Steam and Hot Oil
1.6
300
0.7-1.6
170-300
0.7
170
Fuel Oil
1.6
150
0.7-1.6
60-150
0.7
60
Other Media
4.0
300
1.6-7.0
200-300
1.6
200
Note:When the designed pressure and temperature reach the ones in the above Class I, this steel pipe belongs to Class I pipe. If it meets the pressure and temperature of Class II, it is defined to be the Class II pipe.Other media refer to air, water, lubricating oil and hydraulic oil.Class III seamless steel tubes can be manufactured in accordance with the national standards approved by the ship inspection department.1) As for the seamless steel pipe for boiler and super heater purpose, the working temperature of wall thickness does not exceed 450℃.2) The dimension of marine seamless steel pipe should firstly select the general steel pipe size in the first group of GB/T7395-1998 table one. The outside diameter of steel tube should choose the standard outside diameter size in the first series of GB/T7395-1998. We can also produce pipes with other specifications not appear in the GB/T7395-1998 table one.
Q: Are u a manufacturer? A: Yes, we are seamless steel tube manufacturer locates in liaocheng city, Shandong province China Q: Can I have a trial order only several tons? A: Of course. We can ship the cargo for u with LCL serivece. (Less container load) Q: Do u have payment superiority? A: For big order, 30-90 days L/C can be acceptable. Q: If sample free? A: Sample free, but the buyer pays for the freight.Marine steel pipes and tubes are a sort of specialized steel pipes for marine purposes. Hi-Sea Marine as a professional supplier of marine steel, we can provide you a broad product range and a full line of specification. With regard to marine steel pipes and tubes, we are available to supply pipes made of various kinds of materials, such as stainless steel, carbon steel, alloy... The pipes conform to requirements of ASTM, ASME, SPI, EN, JIS, DIN, GB, RS, ABS, BV, CCS, RINA... We can customize pipes in accordance with your requirements, available for large diameter, small diameter, heavy wall, thin wall... Specifications of Marine Seamless Steel Pipe Table 1 Grade of Seamless Steel Pipe (Pressure Tubing) 
