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ASTM A193 B7 A320 L7 A194 2H Nickel Alloy Fasteners Bolt Nut Washer

Brand Name:HT

Certification:PED SGS ISO TUV

Model Number:M6-M100

Minimum Order Quantity:1PC

Delivery Time:1~30days

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

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Zhengzhou Huitong Pipeline Equipment Co.,Ltd.

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Location: Zhengzhou Henan China

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

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ASTM A193 Grade B7 Fasteners Mechanical Properties

1. ASTM A193 Grade B7 Fasteners Specification

FASTENERS -SCREWS, BOLTS AND NUTS FOR TOUGHEST USE

Material

Size

Length

Specification

Manufacturer

ASTM A193 Grade B7 Fasteners

M 02 to M 160

3 mmto200 mm

ASTM

GKW

Unbrako

Kundan

APL

Sundaram Precision

Infasco

EBY Fastener Etc.

Key Words: Subcategories:ASTM A93 B7 Bolts, A193 B7 Bolts,Grade B7 Bolts,A193 Grade B7,SA 193 B7 bolts,B7 Studs,B7 Studs Material,B7 Threaded Rod,B7 Threaded Bar etc

2. ASTM A193 Grade B7 Fasteners Useful Information

A193 Grade B7 Class Bolts are manufactured from AISI 4140/4142 low Carbon Alloy Steel Grades followed by quencing & tempering. We manufacture these Bolts with great precision & Quality. These grade bolts are also denoted as Grade 7 Bolts,B7 Bolts etc. We Also offer B7 Studs/B7 threaded bars/B7 Threaded rods.TorqBolt Stocks & Supply these Bolt Fasteners in various sizes & Coatings.

ASTM A193 Grade B7 Fasteners Mechanical Properties

3. Bolt -Grade Identification Markings

Grade	Size	Tensile ksi, min	Yield, ksi, min	Elong, %, min	RA % min
B7	Up to 2-1/2	125	105	16	50
	2-5/8 – 4	115	95	16	50
	4-1/8 – 7	100	75	18	50
B8 Class 1	All	75	30	30	50
B8M Class 1	All	75	30	30	50
B8 Class 2	Up to 3/4	125	100	12	35
	7/8 – 1	115	80	15	35
	1-1/8 – 1-1/4	105	65	20	35
	1-3/8 – 1-1/2	100	50	28	45
B8M Class 2	Up to 3/4	110	95	15	45
	7/8 – 1	100	80	20	45
	1-1/8 – 1-1/4	95	65	25	45
	1-3/8 – 1-1/2	90	50	30	45

4. ASTM A193 Grade B7 Fasteners Chemical Composition

Element	B7 (AISI 4140)	B8 (AISI 304)	B8M (AISI 316)
Carbon	0.37 – 0.49%	0.08% max	0.08% max
Manganese	0.65 – 1.10%	2.00% max	2.00% max
Phosphorus, max	0.035%	0.045%	0.045%
Sulfur, max	0.040%	0.030%	0.030%
Silicon	0.15 – 0.35%	1.00% max	1.00% max
Chromium	0.75 – 1.20%	18.0 – 20.0%	16.0 – 18.0%
Nickel		8.0 – 11.0%	10.0 – 14.0%
Molybdenum	0.15 – 0.25%		2.00 – 3.00%

Standard / Material grade	C	Mn	P	S	Si	Cr	Mo	Al	V
ASTM A193 B7 (Cr- Mo AISI 4140,4142,4145 )	0.37-0.49	0.65-1.10	0.035 Max	0.04 Max	0.15-0.35	0.75-1.20	0.15-0.25	–	–
ASTM A1193 B7M (Cr- Mo AISI 4140,4142,4145 )	0.37-0.49	0.65-1.10	0.035 Max	0.04 Max	0.15-0.35	0.75-1.20	0.15-0.25	–	–
ASTM A193 B16 (Cr- Mo -V )	0.36-0.47	0.45-0.70	0.035 Max	0.04 Max	0.15-0.35	0.80-1.15	0.50-0.65	0.015Max	0.25-0.35
ASTM A193 B5 (5% Cr AISI 501)	0.10 max	1.00 max	0.040 max	0.030 Max	1.00 Max	0.40 -6.00	0.40 -0.65	–	–
ASTM A320-L7 (Cr- Mo AISI 4140,4142,4145 )	0.38-0.48	0.75-1.00	0.035 Max	0.04 Max	0.15-0.35	0.80-1.10	0.15-0.25	–	–
ASTM A 320 L7M	0.38-0.48	0.75-1.00	0.035 Max	0.04 Max	0.15-0.35	0.80-1.10	0.15-0.25	–	–
ASTM A194 Gr.2H	0.40 Min	1.00 Max	0.040 Max	0.050 Max	0.40 Max	–	–	–	–
ASTM A194 Gr.2HM	0.40 Min	1.00 Max	0.040 Max	0.050 Max	0.40 Max	–	–	–	–
ASTM A194 Gr.4	0.40-0.50	0.70-0.90	0.035 Max	0.04 Max	0.15 – 0.35	0.20 – 0.30	–	–	–

5. Recommended Nuts, Bolts & Washer

Bolt Grade	Nuts	Washers
B7	A194 Grade 2H	F436
B8 Class 1	A194 Grade 8	SS304
B8M Class 1	A194 Grade 8M	SS316
B8 Class 2	A194 Grade 8	SS304
B8M Class 2	A194 Grade 8M	SS316

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.