JIS G3410 STB510 Seamless Steel Tubes for High Pressure Boilers Are Sold Directly by Manufacturers

• After-sales Service: Yes
• Warranty: Yes
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Model NO.: JIS G3410 STB510
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Mining
• Section Shape: Round
• Delivery Time: 15-21days
• Technical: Hot Rolling Process
• Product Name: JIS G3410 STB510 Tubes
• Product Type1: Boiler Pipe
• Product Type2: Seamless Steel Pipe
• MOQ: 2 Tons
• Transport Package: Standard Export Packing
• Specification: 10mm-600mm
• Trademark: BW
• Origin: China
• HS Code: 730419
• Production Capacity: 50000tons/Month

Product Description

Product Description

JIS G3461 STB 510 used for exchanger heat on 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, catalyser tubes, etc. used in chemical and petroleum industries. However, it is no applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service.

JIS G3461 STB 510 Boiler and Heat Exchanger Tubes Quick Details.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

Standard: JIS G3461
Carbon Steel Tubes for Boiler and Heat Exchanger
 
JIS G3461 STB 510 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.
 

JIS G3461 STB 510 Boiler and Heat Exchanger Tubes Quick Details
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.
 

Heat Treatment of JIS G3461 STB 510

 

Grade	Heat treatment
	Hot finished seamless steel tube	Cold finished seamless steel tube	Electric resistance welded steel tube other than hot finished or cold finished steel tube	Finished electric resistance welded steel tube	Fold  finished  electric resistance welded steel tube
STB 510	Normalizing

Note:The cold finished electric resistance welded steel tube which has been normalized prior to cold finishing may be finished by annealing.
 
 
Chemical Composition of JIS G3461 STB 510

Standard:JIS G3461	Grade	Chemical Composition Limits (%)
		C	Si	Mn	P	S
	STB 510	≤ 0.25	≤ 0.35	1.00-1.50	≤ 0.035	≤ 0.035

 
 
Mechanical Properties of JIS G3461 STB 510

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 510	≥ 510	≥ 295	92 max.	≥ 25	≥ 20	≥ 17

Note:The above table is only applicable for heat exchanger carbon steel tubes. The buyer can appoint the upper limit value of tensile strength. The upper limit value of tensile strength is the above shown value plus 120 N/mm2.
 
 
The dimensional tolerances of .JIS G3461 Carbon Steel Tubes for Boiler and Heat Exchanger
 
Tolerances of Wall Thickness

Tolerances	Division of wall thickness (mm)	Division of method of manufacture	Hot finished seamless steel tube		Cold finished seamless steel tube		Electric resistance welded steel tube
		Division of outside diameter (mm)	Under 100	100 or over	Under 40	40 or over	Under 40	40 or over
Tolerances on wall thickness %	Under 2		---	---	+0.4mm	+22 0	+0.3	+18 0
					0		0
	2 or over to and excl. 2.4		+40	---	+20 0		+18 0
			0
	2.4 or over to or excl. 3.8		+35	+35
			0	0
	3.8 or over to or excl. 4.6		+33	+33
			0	0
	4.6 or over		+28	+28
			0	0
Tolerances  on thickness disparity%	---		Within 22.8 of wall thickness		---		---

 
 
Tolerances of Outside Diameter

Division of outside diameter	Tolerances on outside diamete
	Hot finished seamless steel tube	Cold finished seamless steel tube	Electric resistance welded steel tube other than cold finished	Cold  finished  electric resistance welded steel tube
Under 25	+0.4 -0.8	0.10	1.5	0.10
25 or over to and excl. 40		0.15	0.20	0.15
40or over to and excl. 50		0.20	0.25	0.20
50 or over to and excl 60		0.25	0.30	0.25
60 or over to and excl. 80		0.30	0.40	0.30
80 or over to and excl. 100		0.40	+0.40	0.40
			-0.60
100 or over to and excl.12	+0.4 -1.2	+0.40 -0.60	+0.40 -0.80	+0.40
				-0.60
120 or over to and excl.160		+0.40 -0.80	+0.40 -1.00	+0.40
				-0.80
160 or over to and excl.200	+0.4	+0.40	+0.40	+0.40
	-1.8	-1.20	-1.20	-1.20
200 or over	+0.4	+0.40	+0.40	+0.40
	-2.4	-1.60	-1.60	-1.60

 
 
Tolerances of Length

Division		Tolerance on length
50 mm or under in outside diameter	7 m or under in length	+0.7 mm
		0
	Over 7 m in length	Add 3 mm to the plus side permissible deviation given above for each increase of 3m or its fraction in length. However, the maximum value shall be 15 mm.
Over  50  mm  in outside diameter	7 m or under in length	+10mm
		0
	Over 7 m in length	Add 3 mm to the plus side permissible deviation given above for each increase of 3m or its fraction in length. However, the maximum value shall be 15mm.

Detailed Photos

Production process

Testings
(1)Chemical Analysis
(2)Tensile Test
(3)Flattening Test
(4) Flaring Test
(5) Reverse flattening Test
(6)Hydrostatic Test or Nondestructive Examination.

 

Application

Application

Maximum service temperature: it is applied to high and medium pressure boiler steam pipes, headers, superheater pipes with wall temperature of 540 ° C, forgings and elastic elements with steam parameters of 510ec.

 

 

Packaging & Shipping

Marking
Each tube having passed the inspection shall be marked with the following items. However, the order of arranging the items is not specified. Further, in the case of either smaller tubs or request from the purchaser, the tubes may be bundled together and marked for each bundle by a suitable means.

customers

Our Advantages

  Our company was established in 2012, is a comprehensive company integrating industry and trade. The company has successively won the honorary titles of provincial integrity enterprise and municipal excellent enterprise. We are mainly engaged in various metal related products. Such as pipes, pipe fittings, rods, coils, profiles, medium and heavy plates, narrow strips and other types of materials. The warehouse has a variety of products of different specifications and materials, and the capacity is maintained at 30,000-50,000 tons/month. Products are widely used in petroleum, chemical, electric power, coal, machinery, high and low pressure boiler tubes, hydraulic props, ships and other industries. We make full use of the advantages of self-operated export rights and enter the international market. Our customers are located in South Korea, Canada, Iran, Pakistan, Indonesia, Vietnam, South America and other countries, and we have offices in Indonesia and Vietnam. The quality of our products is enjoyed at home and abroad. high reputation. We adhere to the business philosophy of "integrity service, win-win cooperation, customer first", and provide one-stop steel solutions for global customers. Welcome friends from all over the world to visit our company. We are looking forward to establishing business relationships and personal friendships with you.

FAQ

Q:How do you control quality?

A:Mill test certification is supplied with shipment,third party inspection is avaliable.

Q:What are the advantages of your company?

A:We have many professionals,technical personnel,more competitive prices and best after-sales service than other stainless steel companies.

Q:How many coutries you already exported?

A:Exported to more than 50 countries mainly from  Arab, Kuwait, Egypt, Turkey, Jordan, Brazil, India, Indonesia, Korea, etc.

Q:Can you provide sample?

A:Small sample in store and can provide the sample for free.Customized samples will take about 5-7days

Q:Why should you buy from us not from other suppliers?

A:Diversified products, direct supply from manufacturer.

Q:What is your terms of payment ? A:we accept T/T ,L/C ,D/A,D/P, Western union, paypal ,The payment method can be negotiated by both parties according to the actual situation.

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