seamless boiler tubes

How to choose the right boiler tube

1. Look at the cross-section of the tube. A good quality seamless tube will have a smooth cross-section and will be devoid of bumps and irregularities.
2. Check the density of the pipe to understand the percentage of impurities in the pipe. If the pipe shows low density, steer clear!
3. Check the surface of the boiler tube. A good quality boiler tube will have a smooth surface. If you find the surface to be rough and uneven, you can be sure that the quality is not up to the mark.

Chemical Composition and Mechanical Properties of seamless boiler tubes

Speci -cation	Grade	Chemical Composition [%]															Mechanical Properties
		C		Mn		P	S	Si		Cr		Mo		Cu	Ni	V	Yield Strength		Tensile Strength			% Elongation (G.L. 50 mm WT 8 mm) e (min.)
		C		Mn		P	S	Si		Cr		Mo		Cu	Ni	V	Min.		Min.
		Min	Max.	Min	Max.	Max.	Max.	Min.	Max	Min.	Max	Min.	Max	Max	Max	Max	PSI	MPa	PSI	MPa
SEAMLESS COLD DRAWN PRECISION STEEL TUBES FOR MECHANICAL APPLICATIONS/HYDRAULIC/PNEUMATIC POWER SYSTEMS
EN 10305-1/ EN10305-4	E 235 E 355		0.17 0.22		1.2 1.6	0.025 0.025	0.025 0.025		0.35 0.55							0.02 0.02		235 355		340 490	25 22
EN 10216-1	P195 TR1 P235 TR1		0.13 0.16		0.7 1.2	0.025 0.025	0.02 0.02		0.35 0.35		0.3 0.3		0.08 0.08	0.3 0.3	0.3 0.3			195 235		320 360	27 25
EN 10216-2	P235 GH		0.16		1.2	0.025	0.02		0.35		0.3		0.08	0.3	0.3	0.02
DIN 2391	St - 45 St - 45 St - 52	- - -	0.17 0.21 0.22	0.40 0.40 -	- - 1.60	0.025 0.025 0.025	0.025 0.025 0.025	- - -	0.35 0.35 0.55	- - -	- - -	- - -	- - -	- - -	- - -	- - -	NBK : 215 / GBK : - NBK : 255 / GBK : - NBK : 355 / GBK : -		NBK : 340 / GBK : 315 NBK : 440 / GBK : 390 NBK : 490 / GBK : 490		NBK : 470 NBK : 570 NBK : 630
ASTM A-519	SAE 1010 SAE 1018 SAE 1026 SAE 1035 SAE 1040 SAE 1518 SAE 1541 SAE 4130	0.08 0.15 0.22 0.32 0.37 0.15 0.36 0.28	0.13 0.20 0.28 0.38 0.44 0.21 0.44 0.33	0.30 0.60 0.60 0.60 0.60 1.10 1.35 0.40	0.60 0.90 0.90 0.90 0.90 1.40 1.65 0.60	0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040	0.050 0.050 0.050 0.050 0.050 0.050 0.050 0.040	- - - - - - - 0.15	- - - - - - - 0.35	- - - - - - - 0.80	- - - - - - - 1.10	- - - - - - - 0.15	- - - - - - - 0.25	- - - - - - - -	- - - - - - - -	- - - - - - - -	As per Customer requirements
BOILER/HEAT EXCHANGER/SUPERHEATER & CONDENSER TUBES
ASTM A179	-	0.06	0.18	0.27	0.63	0.035	0.035	-	-	-	-	-	-	-	-	-	26,000	180	47,000	325	35
ASTM A192		0.06	0.18	0.27	0.63	0.035	0.035	-	0.25	-	-	-	-	-	-	-	26,000	180	47,000	325	35
ASTM A 210	A-1 C	- -	0.27 0.35	- 0.29	0.93 1.06	0.035 0.035	0.035 0.035	0.10 0.10	- -	- -	- -	- -	- -	- -	- -	- -	37,000 40,000	255 275	60,000 70,000	415 485	30 30
ASTM A 213	T-11 T-12 T-22	0.05 0.05 0.05	0.15 0.15 0.15	0.30 0.30 0.30	0.60 0.61 0.60	0.025 0.025 0.025	0.025 0.025 0.025	0.50 - -	1.00 0.50 0.50	1.00 0.80 1.90	1.50 1.25 2.60	0.44 0.44 0.87	0.65 0.65 1.13	- - -	- - -	- - -	30,000 32,000 30,000	205 220 205	60,000 60,000 60,000	415 415 415	30 30 30
ASTM A335	P-11 P-12 P-22	0.05 0.05 0.05	0.15 0.15 0.15	0.30 0.30 0.30	0.60 0.61 0.60	0.025 0.025 0.025	0.025 0.025 0.025	0.50 - -	1.00 0.50 0.50	1.00 0.80 1.90	1.50 1.25 2.60	0.44 0.44 0.87	0.65 0.65 1.13	- - -	- - -	- - -	30,000 32,000 30,000	205 220 205	60,000 60,000 60,000	415 415 415	30 30 30
BS 3059 Pt I	320	-	0.16	0.30	0.70	0.040	0.040	0.10	0.35	-	-	-	-	-	-	-	28,000	195	46,000	320	69,500
BS 3059 Pt II	622-490	0.08	0.15	0.40	0.70	0.030	0.030	-	0.50	2.00	2.50	0.90	1.20	-	-	-	40,000	275	71,000	490	93,000
DIN 1629	St- 37.0 St - 52	- -	0.17 0.22	- -	- -	0.040 0.040	0.040 0.035	- -	- -	- -	- -	- -	- -	- -	- -	- -	WT 16mm = 235 / WT>16mm = 225 WT 16mm = 355 / WT>16mm = 345		350 -		- Long 21 / Trans 19
DIN 17175	St - 35.8 St - 45.8	- -	0.17 0.21	0.40 0.40	0.80 1.20	0.040 0.040	0.040 0.040	0.10 0.10	0.35 0.35	- -	- -	- -	- -	- -	- -	- -	WT 16mm = 235 / WT>16mm = 225 WT 16mm = 255 / WT>16mm = 245		360 410		480 530

Product Specification of seamless boiler tubes

Product Name	Seamless steel Pipe
Material	GR.B,ST52, ST35, ST42, ST45,X42, X46, X52, X56, X60, X65, X70,SS304, SS316 etc.
Size	Size 1/4" to 24" Outside Diameter 13.7 mm to 610 mm
Standard	API5L , ASTM A106 Gr.B, ASTM A53 Gr.B,ANSI A210-1996, ANSI B36.10M-2004 , ASTM A1020-2002,ASTM A179-1990 ,BS 3059-2,DIN 17175 ,DIN 1630 ,DIN 2448
Certificates	API5L, ISO 9001:2008,SGS, BV,CCIC
Wall thickness	SCH10, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100 SCH120, SCH160, XS, XXS
Surface Treatment	black paint, varnish, oil, galvanized, anti corrosion coatings
Marking	Standard marking, or according to your request. Marking Method: Spray white paint
Pipe Ends	Under 2 inch plain end. 2 inch and above Beveled. Plastic caps (small OD) ,Iron protector (large OD)
Pipe Length	1. Single Random Length and double Random Length. 2. SRL:3M-5.8M DRL:10-11.8M or As clients requested length 3. fixed length(5.8m, 6m, 12m)
Packaging	Loose package; Packaged in bundles(2Ton Max); bundled pipes with two slings at the both end for easy loading and discharging; End with Plastic caps; wooden cases.
Test	Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, hydraulic testing , X-ray Test.
Application	liquid delivery; Structure pipe; High and low pressure Boiler tube; Seamless steel tubes for petroleum cracking; oil pipe; gas pipe
Advantages	1.Reasonable price with excellent quality 2.Abundant stock and prompt delivery 3.Rich supply and export experience, sincere service 4.Reliable forwarder, 2-hour away from port.

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boiler seamless steel pipe production line

Shandong Kuaima Steel Co., Ltd. has advanced special smelting, investment casting, pipe making and other production equipment. The company has 15 advanced production lines, which can independently produce boiler seamless steel pipe hot/cold rolled steel, galvanized steel, galvanized steel, prepainted steel and stainless steel coils, strips, plates, plates, pipes, bars and other products. The standing inventory is more than 450,000 tons to meet the customer's demand for delivery time.

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steel pipe for boiler QUALITY INSPECTION

We have professional testing equipment. We have our own testing center laboratory to guarantee the quality of our products.

thickness
width
coating quality
chromatic aberration
paint
thickness
hardness
luster
tensile strength
Yield Strength

steel pipe for boiler application industry

Machinery manufacturing industry
Oil & Gas Industries
Construction industry
Shipbuilding industry
Chemical industry
Power Generation

Our main export countries

We are a world-renowned seamless boiler tubes exporter, Qatar, Ireland, Portugal,Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Italy, Libya, Ro-Fanaticism, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Philippines, Ghana, Slovakia, Germany,Saudi Arabia, Afghanistan, China, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece,Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus,Finland, Gabon, Iran, Canada, Argentina, Lebanon. other countries