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ASTM A213 Tp310s GOST9941 20X23h18 Stainless Steel Seamless Tube Heat Exchange Tube

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Wenzhou Guohao Steel Co., Ltd

Audited Supplier 1 year

Profile Certified by SGS/BV

Zhejiang, China
Lin (Mr.)

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Product Detail

Model NO.:

20X23H18

Type:

Stainless Steel Pipes

Standard:

ASTM, AISI, GB, JIS, DIN, EN, GOST9941-81

Grade:

300 Series

Certification:

ISO

Shape:

Round

Technique:

Cold Rolled

Surface Treatment:

Ap/Ba/Polishing/Sand Blasting/Shot Blasting

Length:

Random Length or Fixed length

Material:

310S

Outer Diameter:

1/8inch -24inch

Wall Thickness:

Sch10~Sch160

Test:

HT/ET/UT

Delivery Time:

Stock 7 Days; Mto 30 Days

Trade Terms:

EXW, Fob, CFR, CIF etc.

Markings:

According to A999/A999m

Trademark:

GH-STEEL

Transport Package:

Packed in Bundles or Plywooden Box

Specification:

6~630mm

Origin:

China

HS Code:

7304419000

Product Description

Alloy 310H (UNS S31009) has a carbon content restricted to exclude the lower end of the 310 range. This makes 310H the grade of choice for high temperature applications. This steel has good resistance to oxidation at temperatures of up to 1040°C (1904°F) in intermittent service and 1150°C (2102°F) in continuous service. It is widely used in environments where sulfur dioxide gas is present at high temperatures; however it is recommended that this steel should not be continuously used at 425-860°C (797-1580°F) range due to carbide precipitation.

Product Name	Stainless Steel Seamless Pipes /Tubes Труба Сталь конструкционная криогенная Tubería de acero inoxidable sin costura Tubos de Aço Inoxidável sem Costura Tubo INOXIDABLE SIN COSTURA
Company Inform	1.Name:WENZHOU GUOHAO STEEL., LTD 2.Type: Manufacturer
Material	Austenitic:TP310 TP310S TP310H
Standard	ASTM A312,ASTM A213,ASTM A269 EN 10216-5,DIN 17456 GB/T 14976,GB13296 GOST 9940,GOST 9941
Specification	D(Outer Diameter)	6mm-630mm ; 1/8inch-24inch
	T(Wall Thickness)	0.89mm-40mm SCH 5, SCH 10, SCH 40, SCH 80, SCH 160, SCH XXS 10 BWG, 12 BWG, 14 BWG , 16 BWG, 18 BWG, 20 BWG 10 SWG, 12 SWG, 14 SWG , 16 SWG, 18 SWG, 20 SWG
	L(Length)	Random length 5~7m Fixed length 6m /6.096m /6.1m/12m or as customer's actual request
Surface	Annealing&Pickling Polishing(180#-600#) Bright Annealing Sand Blasting Shot Blasting
Pipe End	Plain End (PE) Bevelled End (BE) Threaded End (TE)
Markings	GH-STEEL S.S SMLS PIPE ASTM A312 TP310H 2" SCH40S 6MTR HEAT NO.*********** Markings will adhere to prescribed specifications in A999/A999M and shall include the NPS or OD and schedule number or average wall thickness, heat number, and NH (when hydrotesting is not performed) and ET (when eddy-current testing is performed) or UT (when ultrasonic testing is performed). The marking shall also include the manufacturer's private identifying mark, the marking requirement of section 12.3 on Hydrostatic or Nondestructive Electric Test, if applicable, and whether seamless (SML), welded (WLD), or heavily cold-worked (HCW). For Grades TP304H, TP316H, TP321H & TP347H, the marking shall also include the heat number and heat-treatment lot identification.
Flattening Test	For material heat treated in a continuous furnace flattening tests shall be made on a sufficient number of pipes to constitute 5% of the lot, but in no case less than 2 lengths of pipe.
Hydrostatic or Nondestructive Testing	Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test
Value Added Services	Customize Length, Bending, Polishing, Shot Blasting, Drilling/Punching, Degreasing
Delivery Time	For ready stock :7 days after receiving the deposit of T/T For MTO: 35 days after receiving the deposit of T/T
Trade Terms	EXW,FOB, CFR, CIF etc.
Loading Port	Ningbo/Wenzhou/Shanghai
Remittance method	TT/LC/CASH
Container	20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM
Referenced Documents	ASTM Referenced Standards A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels A370 Test Methods and Definitions for Mechanical Testing of Steel Products A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys A999/A999M Specification for General Requirements for Alloy and Stainless-Steel Pipes A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless-Steel Tubes E112 Test Methods for Determining Average Grain Size E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

Chemicial composition

Grade		Ni	C	Cr	Mn	Si	P	S	Mo
310	Min	19.0	-	24.0	-	-	-	-	-
310	Max	22.0	0.25	26.0	2.0	1.5	0.045	0.030	-
310S	Min	19.0	-	24.0	-	-	-	-	-
310S	Max	22.0	0.08	26.0	2.0	1.00	0.045	0.030	0.75
310H	Min	19.0	0.04	24.0	-	-	-	-	-
310H	Max	22.0	0.10	26.0	2.0	1.00	0.045	0.030	-

Mechanical Property

Grades	Tensile strength, MPa,min	0.2%Yield strength, Mpa,min	Elongation 50mm%	Hardness,HRB
310	515	205	40	95
310S	515	205	40	95
310H	515	205	40	95

Heat treatment

These materials cannot be hardened by heat treatment. Solid solution treatment (annealing) is heated to 1040-1150°C and rapidly cooled for maximum corrosion resistance. Due to the precipitation of long period sigma brittle phase, it is recommended to restore the ductility by solid solution treatment every 1000 hours after use at temperatures above 650 ° c.

Standard of pipe tube

Summary	Standards
Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes	ASTM A213
Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes	ASTM A249
Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes	ASTM A312
Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications	ASTM A358
Standard Specification for Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service	ASTM A409
Standard Specification For Seamless Stainless Steel Mechanical Tubing	ASTM A511

Dimension coparison table

ube Sizes for Heat Exchangers & Condensers & Boiler
Outside Diameter		BWG
		25	22	20	18	16	14	12	10
		Wall Thickness mm
		0.508	0.71	0.89	1.24	1.65	2.11	2.77	3.40
mm	inch	Weight kg/m
6.35	1/4	0.081	0.109	0.133	0.174	0.212
9.53	3/8	0.126	0.157	0.193	0.257	0.356	0.429
12.7	1/2		0.214	0.263	0.356	0.457	0.612	0.754
15.88	5/8		0.271	0.334	0.455	0.588	0.796	0.995
19.05	3/4		0.327	0.405	0.553	0.729	0.895	1.236
25.4	1		0.44	0.546	0.75	0.981	1.234	1.574	2.05
31.75	1 1/4		0.554	0.688	0.947	1.244	1.574	2.014	2.641
38.1	1 1/2		0.667	0.832	1.144	1.514	1.904	2.454	3.233
44.5	1 3/4				1.342	1.774	2.244	2.894	3.5
50.8	2				1.549	2.034	2.574	3.334	4.03
63.5	2 1/2				1.949	2.554	3.244	4.214	5.13
76.2	3				2.345	3.084	3.914	5.094	6.19
88.9	3 1/2				2.729	3.609	4.584	5.974	7.27
101.6	4					4.134	5.254	6.854	8.35
114.3	4 1/2					4.654	5.924	7.734	9.43

ANSI/ASME B36.10M B36.19M Dimension Comparison Table For Stainless Steel Seamless Tube Pipe

Norminal Pipe Size	Outside Diameter	Wall Thicknesses Schedule ANSI/ASME B36.10M,B36.19M
DN(in.)	D	sch5s	sch10s	sch10	sch20	sch30	sch40s	STD	sch40	sch60	sch80s	XS	sch80	sch100	sch120	sch140	sch160	XXS
1/8	10.3	---	1.24	---	---	---	1.73	1.73	1.73	---	2.41	2.41	2.41	---	---	---	---	---
1/4	13.7	---	1.65	---	---	---	2.24	2.24	2.24	---	3.02	3.02	3.02	---	---	---	---	---
3/8	17.1	---	1.65	---	---	---	2.31	2.31	2.31	---	3.2	3.2	3.2	---	---	---	---	---
1/2	21.3	1.65	2.11	---	---	---	2.77	2.77	2.77	---	3.73	3.73	3.73	---	---	---	4.78	7.47
3/4	26.7	1.65	2.11	---	---	---	2.87	2.87	2.87	---	3.91	3.91	3.91	---	---	---	5.56	7.82
1	33.4	1.65	2.77	---	---	---	3.38	3.38	3.38	---	4.55	4.55	4.55	---	---	---	6.35	9.09
1¼	42.2	1.65	2.77	---	---	---	3.56	3.56	3.56	---	4.85	4.85	4.85	---	---	---	6.35	9.7
1½	48.3	1.65	2.77	---	---	---	3.68	3.68	3.68	---	5.08	5.08	5.08	---	---	---	7.14	10.15
2	60.3	1.65	2.77	---	---	---	3.91	3.91	3.91	---	5.54	5.54	5.54	---	---	---	8.74	11.07
2½	73	2.11	3.05	---	---	---	5.16	5.16	5.16	---	7.01	7.01	7.01	---	---	---	9.53	14.02
3	88.9	2.11	3.05	---	---	---	5.49	5.49	5.49	---	7.62	7.62	7.62	---	---	---	11.13	15.24
3½	101.6	2.11	3.05	---	---	---	5.74	5.74	5.74	---	8.08	8.08	8.08	---	---	---	---	---
4	114.3	2.11	3.05	---	---	---	6.02	6.02	6.02	---	8.56	8.56	8.56	---	11.13	---	13.49	17.12
5	141.3	2.77	3.4	---	---	---	6.55	6.55	6.55	---	9.53	9.53	9.53	---	12.7	---	15.88	19.05
6	168.3	2.77	3.4	---	---	---	7.11	7.11	7.11	---	10.97	10.97	10.97	---	14.27	---	18.26	21.95
8	219.1	2.77	3.76	---		7.04	8.18	8.18	8.18	10.31	12.7	12.7	12.7	15.09	18.26	20.62	23.01	22.23
10	273.1	3.4	4.19	---	6.35	7.8	9.27	9.27	9.27	12.7	12.7	12.7	15.09	18.26	25.4	28.58	25.4
12	323.9	3.96	4.57	---	6.35	8.38	9.53	9.53	10.31	14.27	12.7	12.7	17.48	21.44	25.4	28.58	33.32	25.4
14	355.6	3.96	4.78	6.35	7.92	9.53	---	9.53	11.13	15.09	---	12.7	19.05	23.83	27.79	31.75	35.71
16	406.4	4.19	4.78	6.35	7.92	9.53	---	9.53	12.7	16.66	---	12.7	21.44	26.19	30.96	36.53	40.49
18	457.2	4.19	4.78	6.35	7.92	11.13	---	9.53	14.27	19.05	---	12.7	23.83	29.36	34.93	39.67	45.24
20	508	4.78	5.54	6.35	9.53	12.7	---	9.53	15.09	20.62	---	12.7	26.19	32.54	38.1	44.45	50.01
22	558.8	4.78	5.54	6.35	9.53	12.7	---	9.53	---	22.23	---	12.7	28.58	34.93	41.28	47.63	53.98
24	609.6	5.54	6.35	6.35	9.53	14.27	---	9.53	17.48	24.61	---	12.7	30.96	38.89	46.02	52.37	59.54
26	660.4	---	---	7.92	12.7	---	---	9.53	---	---	---	12.7
28	711.2	---	---	7.92	12.7	15.88	---	9.53	---	---	---	12.7
30	762	6.35	7.92	7.92	12.7	15.88	---	9.53	---	---	---	12.7
32	812.8	---	---	7.92	12.7	15.88	17.48	9.53	17.48	---	---	12.7
34	863.6	---	---	7.92	12.7	15.88	17.48	9.53	17.48	---	---	12.7
36	914.4	---	---	7.92	12.7	15.88	19.05	9.53	19.05	---	---	12.7
38	965.2	---	---	---	---	---	---	9.53	---	---	---	12.7	Note: sch5s,10s,40s,80s Used for steel pipe fittings
40	1016	---	---	---	---	---	---	9.53	---	---	---	12.7
42	1066.8	---	---	---	---	---	---	9.53	---	---	---	12.7
44	1117.6	---	---	---	---	---	---	9.53	---	---	---	12.7
46	1168.4	---	---	---	---	---	---	9.53	---	---	---	12.7
48	1219.2	---	---	---	---	---	---	9.53	---	---	---	12.7

Summary	Standards
Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes	ASTM A 213 / A 213M
Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service	ASTM A269 / A 269N
Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes	ASTM A312/A312M
Standard Specification for Seamless Stainless Steel Mechanical Tubing and Hollow Bar	ASTM A511 / A 511M
Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service	ASTM A789/A789M
Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe	ASTM A790/A790M
Standard Specification For Seamless Stainless Steel Tubes,cold and hot finished	GOST9941-81
Standard Specification For Seamless Stainless Steel Tube for Pressure purposes	EN 10216-5

A269 A213 A312 A789 GOST9941 EN10216-5 Standard Tolerance for Stainless Steel Seamless Tube Pipe

Standard	Outside Diameter Tolerance(mm)		Thickness Tolerance(mm)		Length Tolerance (mm)
ASTM A269	D<12.7	±0.13	±15%		+3.2 / -0
	(12.7~38.1]	±0.13	±10%		+3.2 / -0
	[38.1~88.9)	±0.25			+4.8 / -0
	[88.9~139.7)	±0.38
	[139.7~203.2)	±0.76
ASTM A213	D<25.4	±0.1	D≤38.1	+20%/ -0%	D≤50.80	+3 / -0
	[25.4~38.1]	±0.15	D≤38.1	+20%/ -0%	D≤50.80	+3 / -0
	(38.1~50.8)	±0.2	D>38.1	+22%/ -0%	D>50.8	+5 / -0
	[50.8~63.5)	±0.25
	[63.5~76.2)	±0.30
	[76.2~101.6]	±0.38
	(101.6~190.5]	+0.38 / -0.64
	(190.5~228.6]	+0.38 / -1.14
ASTM A312	[10.29~48.26]	+0.4 / -0.8	10.3~73	+20% / -12.5%	+6 / -0
	[10.29~48.26]	+0.4 / -0.8	88.9~457 T/D≤5%	+22.5% / -12.5%
	(48.26~114.30]	±0.80	88.9~457 T/D>5%	+15% / -12.5%
	(114.30~219.08]	+1.6 / -0.8	508above T/D<5%	+22.5% /-12.5%
	(219.08~457.20]	+2.4 / -0.8	508above T/D>5%	+15%/-12.5%
ASTM A789	D<12.7	±0.13	±15%		+3 / -0
	[12.7 to 38.1)	±0.13	±10%		+3 / -0
	[38.1 to 88.9)	±0.25			+5 / -0
	[88.9 to 139.7)	±0.38
	[139.7 to 203.2)	±0.76
ГОСТ 9941-81	[5~10]	Normal:±0.30 High:±0.20 Higher:±0.15	T:0.2	Normal:±0.05; High:±0.03	/
			T:0.3~0.4	Normal:±0.07; High:±0.05
			T:0.5~1.0	Normal:±0.15; High:±0.10
	[11~30]	Normal:±0.40 High:±0.30 Higher:±0.20	T:1.2~3.0	Normal:+12.5% / -15%; High:±12.5%; Higher:+12.5% / -10%
	[11~30]	Normal:±0.40 High:±0.30 Higher:±0.20	T:3.5~7.0	Normal:±12.5%; High:+12.5% / -10%; Higher:±10%
	[32~95]	Normal:±1.2% High:±1% Higher:±0.8%	T:7.5~8.5	Normal:+12.5% / -10%; Higher:±10%
EN10216-5	D3	±0.75% / ±0.30mm	T3	±10%/ ±0.20mm	L≤6m	+5 +0
EN10216-5	D4	±0.5% / ±0.10mm	T4	±7.5% / ±0.15mm	≥6~12M	+10-0

All of our stainless steel seamless pipe & tubes are packaged as per international standard to prevent any possible damage or loss. By default, we will use thick woven plastic bag to bundle the finished pipes together in batches.
For some special pipes & tubes that are vulnerable to dirt, scratches, stress or rough handling, we will suggest wooden case for protection. Kindly note, wooden case can incur extra cost, not only its own cost, but also the increased freight cost, which is especially true for air transportation.
For enhanced customer experience, we also provide dedicated package as per your special requirements.

The inspection of our company and products is open to customers themselves or their designated third-party inspectors, such as SGS, BV, TUV, DNV, etc., who are well-known in the industry.
We provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, HT/DNT Test Report, Third Party Inspection Report.
• EN 10204/3.1B
• Raw Materials Certificate
• HT/NDT Test Report
• Third Party Inspection Report
Material Testing: We ensure that all our materials go through strict quality tests before dispatching them to our clients.
• Mechanical Testing
• Hardness Test
• Chemical Analysis - Spectro Analysis
• Positive Material Identification - PMI Testing
• Flattening Test
• Flaring Test
• Intergranular Corrosion (IGC) Test

1. General service
2. Curatorial Industry
3. Food Industry
4. Ornamental
5. Aerospace Industry
6. Petrochemical
7. Fluid transport
8. Nuclear Industry
9. Boiler heat- exchanger
10. Oil and gas service

Wenzhou Guohao Steel was established in 2008. We are ISO 9001:2015 approved manufacturer, having a state-of-the-art infrastructure facility for having smooth production process. It has successfully grown by focusing on serving customers across a range of high technology industries. One of our company strengths is its people, with many colleagues having been with the company from the beginning. This provides our customers with the benefit of a wealth of experience and industry knowledge. Guohao Steel now has the whole of manufactured stainless steel products to add to its already large range of High Performance Nickel Alloys.
Guohao Steel adhere to the high standards of integrity and compliance required, including:

Environmental standards
Health and safety standards
Ethical trading standards
Export compliance requirements

We now stock and have direct access to a wide range of other materials, including stainless steels and nickel alloys. We supply and process pipes for numerous key industry sectors, collaborating with both small businesses and large international manufacturers across various countries. Due to our reputation for quality, reliability, and industry approvals, we are a well-regarded supplier in diverse sectors. Our delivery of long-term tangible benefits enables our customers to compete in today's challenging global marketplace.
In order to achieve our goals, we are improving our facilities and expanding our machinery to offer broader processing capabilities. Additionally, our investment extends to the growth and development of our teams, which represent our most valuable resource. We aim for our customers to receive the best experience and trust in the expertise, knowledge, and experience of our teams. As we continue looking towards the future, we rely on our core values to guide both decisions and actions.

More than 16 Years of Experience in Stainless Steel Production.
Provides cost-effective products and professional services to you.
We offer an extensive range of stainless steel, super duplex steel,nickel alloy.

1.Q: Do you provide customized product services?
A: Of course, we can design and produce the products you need based on your specifications and drawings. For example: special dimensions, special controls, OEM, etc.

2.Q: Are you a manufacturer or trader?
A: We are manufacturers. We have our own factory to produce and process various kinds of stainless steel /nickel alloy pipes.

3.Q: Can we get the some samples?Is there a charge?
A: Yes, we will provide you with the samples you want. The samples are free of charge, but the customer may have to pay the freight.

4.Q: Can we visit your factory?
A: Of course, we welcome you to visit our factory on-site or visit our production line through online videos to learn more about our strength and quality. Once we have your schedule, we will arrange a professional sales team to follow up with you.

5.Q: How do you ensure the quality of the product?
A: All products must undergo three inspections throughout the entire manufacturing process, including production, cutting, and packaging. The factory inspection report is provided with the goods. If necessary, third-party inspections such as SGS can be accepted.

6.Q: What is your delivery time?
A: Different products and procurement quantities have different delivery times. The product will be delivered as soon as possible on the basis of quality assurance. Usually, if the goods are in stock, it takes 3-10 days. Alternatively, if the goods are out of stock, it will take 25 to 45 days.

7.Q: Can you arrange shipment?
A: Of course, we have freight forwarders who have been cooperating for many years. We are VIP and can provide you with the most favorable prices and professional services.

8.Q: What if I don't have import experience?
A: We have rich export experience. As long as you have an import license, please leave the rest to us! We will help you choose the most suitable transportation service to safely and accurately deliver the product to the place where it is needed.

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