GOST 9941-81 08X18h10t 12X18h10t (AISI321) Stainless Steel Seamless Pipe Tube Cold Rolling/Drawning Process

• Customization: Available
• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, DIN, EN, ASTM, AISI, GB, DIN, En, GOST9941
• Model NO.: 08x18h10t 12x18h10t 321
• Grade: 300 Series
• Certification: ISO, ISO, ISO9001
• Shape: Round
• Technique: Cold Rolled
• Surface Treatment: Ap/Ba/Polishing/Sand Blasting/Shot Blasting
• Material: 08X18h10t 12X18h10t (AISI321)
• Outer Diameter: 1/8inch -24inch
• Wall Thickness: Sch10~Sch160
• Length: Random Length(5~7m) or Fixed Lenght
• Test: Ht/Et/Ut
• 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: Round
• Trademark: GH-STEEL
• Origin: China
• HS Code: 7304419000
• Production Capacity: 2000ton Per Month

Product Description

Product Description

 08X18H10T has  high resistance to intergranular corrosion in industrial environments, in comparison with the alloys and the 12KH18N10T 12X18H12T. It is used in the manufacture of welded structures operating in highly-corrosive environments at t° from -196 to +600°C without pressure limitation. 

Product Parameters

Product Name	Seamless Stainless Steel Pipes /Tubes
Company Inform	1.Name:WENZHOU GUOHAO STEEL., LTD   2.Type: Manufacturer
Material	Austenitic: TP304, TP304L, TP304H, TP309S, TP310S, TP316L, TP316Ti, TP317L, TP321, TP321H, TP347H , 904L, 254SMO 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 GH3030 GH3039 Cr20Ni80 ; Monel400,K-500
Standard	ASTM A312,ASTM A213,ASTM A269,ASTM A511,ASTM A789,ASTM A790 EN 10216-5,DIN 17456 GB/T 14976,GB13296,GB/T21833 GOST 9940,GOST 9941
Specification	D(Outer Diameter)	6mm-630mm ; 1/8inch-24inch
	T(Wall Thickness)	1mm-40mm ;  SCH5S, SCH10S, SCH40S, SCH80S, SCH160, SCHXXS
	L(Length)	Random length 5~7m Fixed length 6m /6.096m /6.1m/12m  or as customer's actual request
Surface	Annealing&Pickling, Polishing180#-600#), Bright Annealing, Sand Blasting,Shot Blasting
Pipe end	Plain Ends (PE)  ;Bevelled Ends (BW) ;Threaded Ends (TE)
Markings	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
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)

GOST9941-81 Chemical Composition

Химический состав (%, максимум)
марка стали	C	Si	Mn	Cr	Ni	Mo	S	P	Ti	V
04Х18Н10	0,04	0,8	2	17-19	9-11	-	0,02	0,03	-	-
08Х18Н10Т	0,08	0,8	2	17-19	9-11	-	0,02	0,035	5*C-0,7	-
08Х18Н12Т	0,08	0,8	2	17-19	11-13	-	0,02	0,035	5*C-0,6	-
10Х17Н13М2Т	0,10	0,8	2	16-18	12-14	2-3	0,02	0,035	-	5*C-0,7
10Х23Н18	0,10	1	2	22-25	17-20	-	0,02	0,035	-	-
12Х18Н9	0,12	0,8	2	17-19	8-10	-	0,02	0,035	-	-
12Х18Н10Т	0,12	0,8	2	17-19	9-11	-	0,02	0,035	5*C-0,8	-
12Х18Н12Т	0,12	0,8	1-2	17-19	11-13	-	0,02	0,03	0,5-0,7	-
08Х17Т	0,08	0,8	0,8	16-18	-	-	0,025	0,035	5*C-0,8	-
12Х13	0,09-0,15	0,8	0,8	12-14	-	-	0,025	0,03	-	-
15Х25Т	0,15	1	0,8	21-37	-	-	0,025	0,035	5*C-0,9	-
08Х18Н12T	0,08	0,8	2	17-19	11-13	-	0,02	0,035	5*C-0,6	-
08Х22Н6Т	0,08	0,8	0,8	21-23	5,3-6,3	-	0,025	0,035	5*C-0,65	-

GOST9941-81 Mechanical Property

Механические свойства
Марка стали	Временное сопротивление, Н/мм^2 (min)	Относительное удлинение, % (min)	Плотность, кг/м^3
04Х18Н10	490	45	7900
08Х18Н10Т	549	37	7900
08Х18Н12Т	549	37	7950
08Х20Н14С2	510	35	7700
10Х17Н13М2Т	529	35	8000
10Х23Н18	529	35	7950
12Х18Н9	549	37	7900
12Х18Н10Т	549	35	7950
12Х18Н12Т	549	35	7900

Наружный диаметр: 5 - 95 мм
(до 25 мм - шаг 1 мм; далее: 27; 28; 30; 32; 34; 35; 36; 38; 40; 42; 45; 48; 50; 51; 53; 54; 56; 57; 60; 63; 65; 68; 70; 73; 75; 76; 80; 83; 85; 89; 90; 95)

Толщина стенки: 0,2 - 8,5 мм
(0,2; 0,3; 0,4; 0,5; 0,6; 0,8; 1; 1,2; 1,4; 1,5; 1,8; 2; 2,2; 2,5; 2,8; 3; 3,5; 4; 4,5; 5; 5,5; 6; 6,5; 7; 7,5; 8; 8,5)

Исполнения: обычной точности, повышенной точности и высокой точности (отличаются предельными отклонениями диаметра и стенки)

Предельные отклонения:
по диаметру
D 5 - 10 мм: обычная точн. ± 0,3 мм; повышенная ± 0,2 мм; высокая ± 0,15 мм
D 11 - 30 мм: обычная точн. ± 0,4 мм; повышенная ± 0,3 мм; высокая ± 0,2 мм
D 32 - 95 мм: обычная точность ± 1,2%; повышенная ± 1%; высокая ± 0,8%.

по стенке
S 0,2 мм: обычная точность ± 0,05 мм; повышенная ± 0,03 мм
S 0,3 - 0,4 мм: обычная точность ± 0,07 мм; повышенная ± 0,05 мм
S 0,5 - 1 мм: обычная точность ± 0,15 мм; повышенная ± 0,1 мм
S 1,2 - 3 мм: обычная + 12,5% - 15%; повыш. ± 12,5%; высокая + 12,5% - 10%
S 3,5 - 7 мм: обычная ± 12,5%; повыш. + 12,5% - 10%; высокая ± 10%
S 7,5 - 8,5 мм: обычная точность + 12,5% - 10%; повышенная ± 10%.
Standard Tolerance for Stainless Steel Tubes Pipes 

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%
	[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	[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%
ASTM A789	D<12.7	±0.13	±15%		+3 / -0
	[12.7 to 38.1)	±0.13	±10%
	[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:±0.05mm; High:±0.03mm	/
			T:0.3~0.4	Normal:±0.07mm; High:±0.05mm
			T:0.5~1.0	Normal:±0.15mm; High:±0.10mm
	[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%
			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%

 

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

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.