Premium JIS3461 STB340 Seamless Steel Tube for Global Distribution

• Customization: Available
• After-sales Service: Change/Return
• Warranty: 10 Year
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Boiler Pipe
• Section Shape: Round
• Wt: 2mm-13mm
• Surface: Black Oiled/Varnish/as Per Customer′s Desire
• Transport Package: in Bundles with Seaworthy
• Specification: 25-140mm OD
• Trademark: Kingmetal
• Origin: Made in China
• HS Code: 730490
• Production Capacity: 1000ton/Month

Product Description

Premium JIS3461 STB340 Seamless Steel Tube for Global Distribution

JIS G3461 STB 340 Boiler and Heat Exchanger Tubes are manufacture by Seamless , Electric resistance welded.The cold finished electric resistance welded steel tube which has been normalized prior to cold finishing may be finished by annealing.

Standard: JIS G3461 Carbon Steel Tubes for Boiler and Heat Exchanger

JIS G3461 STB 340 specifies the carbon steel tubes, hereinafter referred to as the "tubes", used for exchanging heat on the inside and outside of the tube, such as water tubes, smoke tubes, superheater tubes, air preheater tubes, etc. of the boiler, and heat exchanger tubes, condenser tubes, catalyzer tubes, etc. used in chemical and petroleum industries.

Chemical Composition 

Standard	Grade	Chemical Composition Limits (%)
		C	Si	Mn	P	S
JIS G3461	STB 340	≤ 0.18	≤ 0.3	0.30-0.60	≤ 0.035	≤ 0.035

 
Mechanical Properties 

Grade	Tensile Property (N/mm2)	Yield Point or Yield Strength (N/mm2)	Rockwell hardness HRB	Elongation (%)
				OD ≥20 mm	10 mm ≤OD <20 mm	OD <10 mm
				Longitudinal	Transverse	Transverse
STB 340	≥ 340	≥ 175	77 max.	≥ 35	≥ 30	≥ 27

Specification

Manufacture:Seamless; Electric resistance welded, Cold finished ,Hot finished
Wall thickness(WT): 2.0 mm--12.7 mm.
Outer diameter (OD): 25 mm--139.8 mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded
Company Profile
From 1989 to now, Kingmetal Steel focus on manufacturing and distributing pipeline products including piping, fitting, flange, valve and fastener in stainless, carbon, alloy and duplex steel.
Kingmetal has a factory to manufacture seamless stainless steel pipe from DN6 to DN600 and distribute seamless steel pipe and fitting from top brand manufacturers such as Baosteel, Hengsteel, Tiansteel and Pansteel etc.
All of products are strictly compliance with standard, 100% inspection passed including visual, dimension and PMI test before shipment.
Both our sales and logistic teams are over 10 years of experiences and training frequently.
After- sales service with high efficiency, if any products are short quantity/weight or damaged caused by manufacturing, design or transportation can be compensated.
Why choose us?
One-Stop Solution
We have thousands of total production experience, from raw materials to finished products.
Competitive Price
Large scale purchase, standardized production process and efficient management make our price competitive.
Quick Shipping
Years of export experience enable us to control the transportation time more accurately.
Quality Control
The standardized production process, comprehensive management system, professional testing equipment
Special material customization
We support the customization of various complex materials
OEM/ODM
We support any form of OEM/ODM customization requirements.