High Quality ASTM A789 UNS S32750 2507 Super Duplex Stainless Steel Seamless Tubes

• Customization: Available
• Application: Automotive Industry, Chemical Industry, Food Industry, Oil and Gas Industry, Pharmaceutical Industry
• Certification: ISO9001
• Model NO.: S32750
• Length: Random length/ Fixed Length
• Material: Duplex Stainless Steel
• Outer Diameter: 1/8inch-24inch
• Type: Seamless Pipe
• Wall Thickness: Sch10s~Sch160
• Test: Hydraulic Test /Eddy Current Test/Ultrasonic Test
• Delivery Time: Stock 7 Days; MTO 30 Days
• Trade Terms: EXW,FOB, CFR, CIF etc.
• Markings: According to A999/A999m
• Transport Package: Packed in Bundles or Plywooden Box
• Specification: S32750
• Trademark: GH-STEEL
• Origin: China
• HS Code: 7304419000
• Production Capacity: 2000ton Per Month

Product Description

Product Description

Product Name	Seamless Duplex Stainless Steel Pipes /Tubes
Company Inform	1.Name:WENZHOU GUOHAO STEEL., LTD   2.Type: Manufacturer
Material	DUPLEX SS 2507 UNS S32750 (F53 / 1.4410 / Alloy 32750 / Alloy 2507)
Standard	ASTM A789,ASTM A790
	D (Outer diameter)	6mm-630mm
	T (Wall thickness)	1mm-40mm
	L(Length)	Single random length/ Double random length or as customer's actual request
Surface	Annealing&Pickling, Polishing180#-600#), Bright Annealing, Sand Blasting,Shot Blasting
Markings	Marked Pipe Sample: ASTM A790 UNS S32750 12" NB SCH 40S SEAMLESS HEAT NO. XXXX
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
Delivery Time	1.for ready stock :7 days after receiving the deposit of T/T 2.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)

Product Parameters

• UNS S32750 has excellent corrosion resistance in a wide variety of corrosive chemicals
• Outstanding resistance to pitting and crevice corrosion in seawater and other chloride containing environments, with Critical Pitting Temperature exceeding 50°C
• High strength compared to austenitic and 22%Cr duplex stainless steels
• Excellent ductility and impact strength at both ambient and sub-zero temperatures
• High resistance to abrasion, erosion and cavitation erosion
• Excellent resistance to stress corrosion cracking in chloride containing environments
• UNS S32750 is listed in NACE MR 01 75 for sour service
• ASME Approval for Pressure Vessel application

UNS S32750 Chemical Properties

Grade		Ni	C	Cr	Mn	Si	P	Cu	S	Mo	N
2507	Min	6	-	24	-	-	-	-	-	-	0.24
	Max	8	0.03	26	1.2	0.8	0.035	0.5	0.02	1.2	0.32

UNS S32750 Mechanical Strength

Grade	Density	Tensile Strength min	Yield Strength min	Elongationin 2 in or 50mm,min	Hardness,max		Heat Treatment Temperature
		ksi[MPa]	ksi[Mpa]	%	Brinell	HRC	ºF	ºC
S32750 /2507	7.8g/cm3	116[800]	80[550]	15	300	32	1880-2060	1025-1125

Alloy Comparison Super Duplex Stainless Steel

Alloy Comparisons	S31803	S17400 (17-4PH)	718 ( ST)	S31254	Alloy 32750
0.2% Proof Strength (N/mm2), minimum	450	1070	550	300	550
Corrosion Rate (mm.y-1) Seawater	< 0.01	~1	< 0.01	< 0.01	< 0.01
Corrosion Rate (mm.y-1) 10% sulphuric acid at 80°C	< 0.4	10	>1	1.5	< 0.15
Corrosion Rate (mm.y-1) Boiling 50% nitric acid	< 0.15	< 0.15	< 0.15	0.4	< 0.15
Wear Properties related to Hardness (HBN)	RC25	RC38	RC20	RC20	RC28

ASTM A789 DSS UNS S32750 Seamless Pipes Dimensional Tolerance

ASTM A789 ASME SA789  PERMISSIBLE VARIATIONS IN DIMENSIONS
Group	Size,Outside Diameter,in.[mm]	Permissible Variations in Outside Diameter,in.[mm]	Permissible Variations in Wall Thinckness	Permissible Variations in Cut Length,in[mm]		Thin Walled Tubes
				Over	Under
1	up to 1/2[12.7],excel	±0.005[0.13]	±15%	1/8"[3]	0	...
2	1/2" to 1-1/2"[12.7 to 38.1],excl	±0.005[0.13]	±10%	1/8"[3]	0	less than 0.065 in.[1.6mm] nominal
3	1-1/2" to 3-1/2"[38.1 to 88.9],excl	±0.010[0.25]	±10%	3/16"[5]	0	less than 0.095 in.[2.4mm] nominal
4	3-1/2" to 5-1/2"[88.9 to 139.7],excl	±0.015[0.38]	±10%	3/16"[5]	0	less than 0.150 in.[3.8mm] nominal
5	5-1/2" to 8"[139.7 to 203.2],incl	±0.030[0.76]	±10%	3/16"[5]	0	less than 0.150 in.[3.8mm] nominal

ANSI/ASME B36.10M B36.19M 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

Packaging & Shipping

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.

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

• Petroleum Industry
• Chemical Industry
• Water Process & Treatment
• Nuclear Power
• Boiler
• Heat Exchangers
• Shipbuilding Industry
• Food processing equipment

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.

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.