1/2" - 48" Alloy Steel Pipe / Seamless And Welded Pipe With Heat Treatment

Brand Name:HT

Certification:ISO SGS BV TUV

Model Number:ASTM A333 Grade 3 Grade 6 Grade 8 Grade 9 Alloy Steel Pipe Seamless Welded Pipe

Minimum Order Quantity:10KG

Delivery Time:3-15 work days

Payment Terms:L/C, D/A, D/P, T/T, Western Union

Contact Now

Add to Cart

Zhengzhou Huitong Pipeline Equipment Co.,Ltd.

Active Member

Location: Zhengzhou Henan China

Address: Room 1703, 17th Floor, Building 5, Jinyin Modern City, Guangdian South Road, Jinshui District, Zhengzhou City, Henan Province, China.

Supplier`s last login times: within 1 hours

View Contact Details

Product Details Company Profile

Product Details

ASTM A333 Grade 3 Grade 6 Grade 8 Grade 9 Alloy Steel Pipe Seamless Welded Pipe

1. A333 PIPE SPECIFICATIONS

A/SA333 NPS 1/4″ – 42″

Schedules 10 through 160, STD, XH and XXH

2. Scope

ASTM A333 covers nominal (average) wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. Several grades of ferritic steel are included. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.

3. Material & Manufacture

The pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.

Heat Treatment Requirements

All seamless and welded pipe shall be treated to control their microstructure by the following methods: Normalizing per A 333/A 333M-05 section 4.3.1.1; section 4.3.1.2 or section 4.3.1.3 Quenched and Tempered per A 333/A 333M – 05 section 4.3.2.1 Double Normalized and Tempered per A 333/A 333M – 05 section 4.3.2.2

4. Chemical Requirements

		Composition, %
Element	Grade 1	Grade 3	Grade 6
Carbon, max	0.30	0.19	0.30
Manganese	0.40 – 1.06	0.31 – 0.64	0.29 – 1.06
Phosphorous, max	0.025	0.025	0.025
Sulfur, max	0.025	0.025	0.025
Silicon		0.18 -0.37	0.10 min
Nickel		3.18 – 3.82

For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% would be permitted to a maximum of 1.35% manganese. When Grade 6 is ordered under this specification, supplying an alloy grade that specifically requires the addition of any element other than those listed for the ordered grade is not permitted. However, the addition of elements required for the deoxidation of the steel is permitted.

5. Tensile Requirements

The material shall conform to the requirements as proscribed:

	Grade 1		Grade 3		Grade 6
	psi	MPa	psi	MPa	psi	MPa
Tensile Strength, min	55,000	380	65,000	450	60,000	415
Yield Strength, min	30,000	205	35,000	240	35,000	240
	Longitudinal	Transverse	Longitudinal	Transverse	Longitudinal	Transverse
Elongation in 2 in. or 50 mm, (or 4D), min, %:
Basic minimum elongation for walls 5/16 in. [8 mm] and over in thickness, strip tests, and for all small sizes tested in full section	35	25	30	20	30	16.5
When the standard round 2-in. or 50-mm gage length or proportionally smaller size test specimen with the gage length equal to 4D (4 times the diameter) is used	28	20	22	14	22	12
For strip tests, a deduction for each 1/32in. [0.8 mm] decrease in wall thickness below 5/16 in. [8 mm] from the basic minimum elongation of the following percentage	1.75	1.25	1.50	1.00	1.50	1.00

	Elongation in 2 in. or 50 mm, min, %:

Wall Thickness		Grade 1		Grade 3		Grade 6
in.	mm	Longitudinal	Transverse	Longitudinal	Transverse	Longitudinal	Transverse
5/16 (0.312)	8	35	25	30	20	30	16
9/32 (.281)	7.2	33	24	28	19	28	15
1/4 (.250)	6.4	32	23	27	18	27	15
7/32 (.219)	5.6	30		26		26
3/16 (.188)	4.8	28		24		24
5/32 (.156)	4	26		22		22
1/8 (.125)	3.2	25		21		21
3/32 (.094)	2.4	23		20		20
1/16 (.063)	1.6	21		18		18

Company Profile

Huitong Group was established in 1978. After 38 years'development and innovation,by now,Huitong Group has set up multiple subsidiary companies.Among them,Zhengzhou Huitong Pipe Fitting Co.,Ltd.,with the indepent right of import and export, is mainly engaged in exporting steel pipe and pipe fittings for Huitong Group and assisting another subsidiary company of Huitong Group:Zhengzhou Huitong Machanical Equipment Co.,Ltd., in exporting machanical equipment.

Zhengzhou Huitong Pipeline Equipment Co.,Ltd.,with the strong support of Huitong Group,and years'development and innovation, are more and more professional in technical service and can manufacure products with all kinds of material,shape and size. Especially in elbows, tee, reducer, flange and pipe cap etc., we have gained more than 20 product patent, and hundreds of technology patent. Also,we have gradually taken an ireplacable role in High-pressure,high-temperature and anti-corrosion area. With the continuous construction of engery in China,such as petrol gas,electric power,etc.,our company has become the purchasing center of whole set fittings for such projects.In 2009,a foreign trade team established,is manily engaged in oil gas and electric power projects abroad.By now, our products have been exported to

Canada,Malaysia,Parkistan,UAE, Eygpt,the Middle East countries, etc.. We have passed the qualification of ISO9001:2000 and API quality certification system. High-quality products and high-class service are well received by abroad customers in this industry. The unique diversified production line can offer you one-package serive, you can pruchase all complex products from us at one time. What's more, our sufficient material stock and conventional product stock can ensure you receive satisfied product in the shortest time.

With powerful financial strength,advanced managerial concept, excellent marketing service,strict quality control system and integrated marketing team,we would like to develop together with you hand in hand. Adhering to the operation principle of "faith first and clients foremost", we always supply high quality products, complete after-sales service and favorable prices. We sincerely hope to establish long-term cooperation with you on the basis of mutual benefits, reciprocity and common development.