TP321 12X18H10T 08X18H10T OD 8~530mm Stainless Steel Tube Pipe Stock List

• Customization: Available
• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, DIN, GOST9941-81
• Model NO.: TP321 12X18H10T 08X18H10T stock pipe
• Grade: 300 Series
• Certification: ISO
• Shape: Round
• Technique: Cold Rolled
• Surface Treatment: AP/BA/Polishing/Sand Blasting/Shot Blasting
• Material: Stainless Steel
• Usage: Boiler, Oil/Gas, Chemical
• Section Shape: Round
• Test: Hydraulic Test /Eddy Current Test/Ultrasonic Test
• Delivery Time: Stock 7 Days; MTO 30 Days
• Trade Terms: EXW, FOB, FCA, CFR, CIF etc.
• Markings: GOST 9941-81 08X18H10T 426x16mm Heat No.:
• Transport Package: Packed in Bundles or Plywooden Box
• Specification: TP321 12X18H10T 08X18H10T
• Trademark: GH-STEEL
• Origin: China
• HS Code: 7304419000
• Production Capacity: 2000ton Per Month

Product Description

Product Description

Product Name	Stainless Steel Seamless Pipes /Tubes
	Труба нержавеющая бесшовная 426х8 мм 12Х18Н10Т ГОСТ 9941-81.
	Tubería de acero inoxidable sin costura
	Tubos de Aço Inoxidável sem Costura
	Pipa  Stainless  Steel
Company Inform	1.Name:WENZHOU GUOHAO STEEL., LTD
	2.Type: Manufacturer
Material	Austenitic:TP304,TP304L,TP304H,TP309S,TP310,TP310S,TP310H,TP316L,TP316Ti,TP317L,TP321,TP321H,TP347H,904L,254SMO,253MA
	GOST Grade: 08х18н10т,12х18н10т(AISI 321),10х17н13м2т(AISI 316Ti),20х23н18(AISI 310S),06хн28мдт(AISI 904L),08х18н10(AISI304)
	Duplex Stainless:UNS S31803,UNS S2205,UNS S32750,UNS S32760
	Nickel Alloy:
	Incoloy: 800,800H,800HT,825,926,20,28,201,200
	Inconel :718,600,601,625
	Hastelloy: C-22,C-276,B-2,B-3
	High Temperature Alloy:GH3030,GH3039,Cr20Ni80 Monel400,K-500
Sources of raw materials	TSINGHSAN,BAOSTEEL,YONGXING etc
Standard	ASTM A312,ASTM A213,ASTM A269,ASTM A511,ASTM A789,ASTM A790
	ASTM B161 B163 B165 B167 B407 B423 B444 B622 B677 B729 B983
	EN 10216-5,DIN 17456
	GB/T 14976,GB13296,GB/T 21833,GB/T 15011,GB/T 15062
	GOST 9940,GOST 9941
Specification	D(Outer Diameter)	6mm-630mm
		1/8inch-24inch
	T(Wall Thickness)	0.89mm-60mm
		SCH5,SCH10,SCH20,SCH40,SCH40S,SCH 80S,SCH160,SCHXXS
		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
		As customer's actual request
Surface	Annealing&Pickling,
	Polishing
	Bright Annealing
	Sand Blasting
	Shot Blasting / Shot Peening
Pipe End	Plain End (PE)
	Bevelled End (BE)
	Threaded End (TE)
Markings	GH-STEEL GOST9941-81  12X18H10T 426x8  MM HEAT NO.:*********** SML
	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.
Hydraulic Test or Nondestructive Test	Each pipe shall be subjected to the Nondestructive Test or the hydraulic test
Value Added Services	Customize Length/Pipe slice
	Bending
	Polishing (180#,240#,320#,400#,600#)
	Shot Blasting / Shot Peening
	Drilling/Punching
	Oil Degreasing
	Print Colour Code
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,FCA, CFR, CIF etc.
Loading Port	Ningbo/Wenzhou/Shanghai
Remittance method	TT/LC/CASH/DP

Product Parameters

Chemical Composition of 12X18H10T 08X18H10T AISI 321 Stainless Steel Seamless Tube Pipe

Chemical Composition (%)
Grade		C	Mn	P	S	Si	Cr	Ni	N	Ti	Cu
AISI 321	min	-	-	-	-	-	17,0	9,0	-	5x(C+N)	-
	max	0,080	2,00	0,045	0,030	1,00	19,0	12,0	0,10	0,70
AISI 321H	min	0,040	-	-	-	-	17,0	9,0	-	4x(C+N)	-
	max	0,100	2,00	0,045	0,030	1,00	19,0	12,0	0,10	0,70	-
08X18H10T	min	-	-	-	-	-	17,0	9,0	-	5xC	-
	max	0,080	2,00	0,035	0,020	0,80	19,0	11,0	-	0,70	0,30
12X18H10T	min	-	-	-	-	-	17,00	9,00	-	5xC	-
	max	0,120	2,00	0,035	0,020	0,80	19,00	11,00	-	0,80	0,30

Mechanical Performance of 12X18H10T 08X18H10T AISI 321 Stainless Steel Seamless Tube Pipe

Mechanical Performance
Grade	Mpa (kgf/mm²)		Elongation .(%) in 2" (min.)	Hardness
	Tensile strength (min.)	Yield strength  (min.)		HRB(max.)
AISI 321	515	205	35	90
AISI 321H	515	205	35	90
08X18H10T	549	216	37	-
12X18H10T	549	216	35	-

Stock List of AISI321 12X18H10T Stainless Steel Seamless Tubes Pipes

Grade	Size (mm)
TP321	8х1	25х5	42х5	60х6	85х3	114х6	159х5	220х5
TP321	8х2	27х2	42х6	60х8	85х6	114х7	159х6	220х6
TP321	10х1	27х2,5	42х8	60х9	85х12	114х8	159х7	245х4
TP321	10х2,5	27х3	45х2	60х10	89х3	114х10	159х8	245х6
TP321	12х1,5	27х3,5	45х2,5	62х2	89х3,5	114х12	159х10	245х9
TP321	14х1	27х4	45х3	63х1,5	89х4	114х13,5	159х11	245х10
TP321	14х1,5	27х5	45х3,5	63х3	89х4,5	114х14	159х12	245х12
TP321	14х1,5	28х1,5	45х4,5	63х8,5	89х5	121х10	159х14	245х20
TP321	14х2	28х3	45х5	65х3,5	89х5,5	121х12	159х15	245х25
TP321	14х2,5	28х3,5	45х6	65х4	89х6	121х20	168х3	250х3
TP321	14х3	28х4	48х2	65х5	89х7	121х25	168х3,5	250х4
TP321	15х2	30х2,5	48х2,5	65х8	89х8	127х5	168х4	250х4,5
TP321	15х3х5	30х3	48х3	68х3	89х9	127х8	168х4,5	250х6
TP321	16х1	30х4	48х4	68х3,5	89х10	127х9	168х5	273х4
TP321	16х1,5	30х5	48х4,5	68х4	89х12	127х9,5	168х6	273х5
TP321	16х2	32х2	48х5	68х6	89х14	127х10	168х7	273х6
TP321	16х2,5	32х2,5	48х6	70х2,5	90х3	127х12	168х8	273х7
TP321	16х3	32х3	48х8	70х3	90х5	127х18	168х9	273х8
TP321	16х4	32х3,5	48х10	70х3,5	92х14,5	127х20	168х10	273х9
TP321	18х1,5	32х4	50х2	70х6	95х3	130х10	168х11	273х10
TP321	18х2	32х4,5	50х3,5	70х8	95х5	130х14	168х14	273х11
TP321	18х2,5	32х5	50х5	70х9	95х6	133х3	168х20	273х12
TP321	18х3	32х5,5	50х7	70х10	95х8	133х3,5	168х25	273х14
TP321	18х4	32х6	51х1,5	72х12	95х9	133х4	170х4	273х15
TP321	19х1,5	34х2	51х2	73х3	95х10	133х4,5	180х4	273х16
TP321	19х3	34х2,5	51х2,5	73х4	95х12	133х5	180х4	273х18
TP321	20х2	34х3	51х3	73х5	100х10	133х5,5	180х7	273х20
TP321	20х3	34х3,5	51х3,5	73х6	102х3	133х6	180х10	325х5
TP321	20х3,5	34х4	51х4	73х8	102х4	133х8	180х18	325х6
TP321	20х4	34х5	51х5	73х9	102х5	133х10	180х16	325х7
TP321	20х5	34х6	52х9	75х15	102х6	133х12	194х6	325х8
TP321	21х2	35х3	53х1,5	75х17	102х6,5	133х14	194х8	325х8,5
TP321	21х2,5	35х3,5	53х4	76х3	102х8	133х16	194х20	325х9
TP321	21х3	36х2	53х6	76х3,5	102х10	140х3,5	194х25	325х10
TP321	21х4	36х3	53х7	76х4	102х12	140х4	200х3	325х10,5
TP321	22х1	36х4,5	54х2	76х4,5	102х14	140х5	200х4	325х12
TP321	22х1,5	36х5	54х3,5	76х5	102х18	140х6	200х6	325х13
TP321	22х2	38х1,5	56х2	76х6	106х14,5	140х8	203х30	325х14
TP321	22х2,5	38х2	56х7	76х7	108х3	140х9	210х24	325х17,5
TP321	22х3	38х2,5	57х2	76х8	108х3,5	140х10	219х3	325х18
TP321	22х3х6000	38х3	57х2,5	76х9	108х4	140х12	219х3,5	325х20
TP321	22х3,5	38х3,5	57х3	76х10	108х5	140х20	219х4	377х6
TP321	22х3,5х6000	38х4	57х3,5	76х12	108х6	140х25	219х4,5	377х8
TP321	22х4	38х5	57*4	76х14	108х7	144х10	219х5	377х10
TP321	24х3	38х6	57х4,5	80х3	108х8	146х10	219х6	377х12
TP321	24х4	38х10	57х5	80х4	108х10	146х12	219х7	377х14
TP321	25х1,5	40х2	57х6	80х7	108х12	146х14	219х8	426х6
TP321	25х2	40х3,5	57х8	83х3	108х14	146х16	219х10	426х8
TP321	25х2х6010	40х4	57х10	83х4	108х16	146х20	219х11	426х9
TP321	25х2х12010	40х5	58х10	83х5	108х18	152х8	219х12	426х10
TP321	25х2,5	42х2	60х2	83х6	110х20	152х16	219х15	426х12
TP321	25х2,5х6010	42х2,5	60х2,5	83х8	114х3	152х20	219х16	426х25
TP321	25х2,5х12010	42х3	60х3	83х9	114х3,5	159х3	219х18	530х8
TP321	25х3	42х3,5	60х3,5	83х10	114х4	159х3,5	219х20	530х9
TP321	25х3,5	42х4	60х4	83х12	114х4,5	159х4	219х25	530х10
TP321	25х4	42х4,5	60х5	83х14	114х5	159х4,5	219х30	530х12

 

Summary	Standards
Standard that specifies the requirements for alloy steel seamless warm-deformed tubes used in corrosion-resistant applications	GOST9941-81
Standard that specifies the requirements for alloy steel seamless hot tubes of corrosion-resistant steel for General purposes	GOST9940-81

GOST 9941-81 Standard Tolerance For Stainless Steel Seamless Pipe

Outside Diameter	Tolerance			Wall Thickness  mm	Tolerance
mm	Normal	High	Higher		Normal	High	Higher
5≤OD≤10	±0.3mm	±0.2mm	±0.15mm	0.2	±0.05mm	±0.03mm	-
10<OD≤30	±0.4mm	±0.3mm	±0.2mm	0.3≤WT≤0.4	±0.07mm	±0.05mm	-
				0.5≤WT≤0.6	±0.10mm	±0.07mm	-
30<OD≤95	±1.2%	±1.0%	±0.8%	0.7≤WT≤1	±0.15mm	±0.10mm	-
				1<WT≤3	+12.5/-15%	±12.5%	+12.5%/-10%
OD>95	±1.0%	±1.0%	±0.8%	3<WT≤7	±12.5%	+12.5/-10%	±10%
				WT>7	-125	±10%	-

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.
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

PRODUCT APPLICATION

• 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

 

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

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.

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.