ASTM A312, Tp310h Round Stainless Steel Seamless Pipe Ht Et Ut Available

• Customization: Available
• Type: Stainless Steel Pipes, Stainless Steel Pipes
• Standard: ASTM, AISI, GB, DIN, EN, GOST9941, ASTM, AISI, GB, DIN, En, GOST9941
• Grade: 300 Series, 300 Series
• Certification: ISO, ISO, ISO9001
• Shape: Round, Round
• Technique: Cold Rolled, Cold Rolled
• Surface Treatment: Ap/Ba/Polishing/Sand Blasting/Shot Blasting, Ap/Ba/Polishing/Sand Blasting/Shot Blasting
• Application: Automotive Industry, Chemical Industry, Food Industry, Oil and Gas Industry, Pharmaceutical Industry
• Length: Rl or FL
• Material: 310h
• 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
• Surface: Ap, MP, Ba, Ep
• Transport Package: Packed in Bundles or Plywooden Box
• Specification: 6~630mm
• Trademark: GH-STEEL
• Origin: China
• HS Code: 7304419000
• Production Capacity: 2000ton Per Month

Product Description

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 Parameters

Chemicial composition

Grade		Ni	C	Cr	Mn	Si	P	S	Mo
310	Min	19.0	-	24.0	-	-	-	-	-
	Max	22.0	0.25	26.0	2.0	1.5	0.045	0.030	-
310S	Min	19.0	-	24.0	-	-	-	-	-
	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	-	-	-	-	-
	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

Standard	Outside Diameter Tolerance(mm)			Thickness Tolerance(mm)		Length Tolerance (mm)
ASTM A269 (A789)	D<12.7		±0.13	±15%		+3.2 / -0
	(12.7~38.1]			±10%
	[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
	(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(A790)	[10.29~48.26]		+0.4 -0.8	10.3-73	+20% / -12.5%	+6 / -0
				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%
ГОСТ 9941-81	D=5-10		Normal:±0.30 High:±0.20     Higher:±0.15mm	S=0.2mm	Normal:±0.05;High:±0.03mm
				S=0.3-0.4mm	Normal:±0.07;High:±0.05mm
				S=0.5-1.0mm	Normal:±0.15;High:±0.10mm
	D=11-30		Normal:±0.40 High:±0.30     Higher:±0.20mm	S=1.2-3.0mm	Normal:+12.5%,-15%; High:±12.5%; Higher:+12.5%,-10%
				S=3.5-7.0mm	Normal:±12.5%; High:+12.5%,-10%; Higher:±10%
	D=32-95		Normal:±1.2% High:±1%       Higher:±0.8%
				S=7.5-8.5mm	Normal:+12.5%,-10%; Higher:±10%

Dimension coparison table

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

Company Profile

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:

1. Environmental standards
2. Health and safety standards
3. Ethical trading standards
4. 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.

Packaging & Shipping

1. 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.
2. 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.
3. For enhanced customer experience, we also provide dedicated package as per your special requirements.

Certifications

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.

PRODUCT APPLICATION

Grade 310H stainless steel is chiefly used in the heat treatment industry, and the chemical process industry.

• Fans
• Trays
• Baskets
• Rollers
• Burner parts
• Oven linings
• Tube hangers
• Retorts linings
• Conveyor belts
• Refractory supports
• Containers for hot concentrated acids, ammonia, and sulfur dioxide
• Used along with hot acetic and citric acid in the food processing industry.

Our Advantages

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

FAQ

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.