Zhengzhou Huitong Pipeline Equipment Co.,Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 100000000sets per month |
| Delivery Time | 1~30days |
| Packaging Details | Plywood case,pallet,etc. |
| Bolt Type | Stud Bolt Hex Boltt Threaded Rod U-Bolt Hex Socket Screw |
| Nut Type | Hex Nut Hex Heavy Nut |
| Waher Type | Plain Flat Spring Washer |
| Bolt Standard | DIN931 933 912 976 3570/ASME B18.2.1 |
| Nut Standard | DIN934 ASME B18.2.2 |
| Washer Standard | DIN125 127/ASME B18.22.1 |
| DIN Size | M6-M100 |
| ASME Size | 1/4''~5'' |
| Brand Name | HT |
| Model Number | M6-M100 |
| Certification | PED SGS ISO TUV |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 100000000sets per month |
| Delivery Time | 1~30days | Packaging Details | Plywood case,pallet,etc. |
| Bolt Type | Stud Bolt Hex Boltt Threaded Rod U-Bolt Hex Socket Screw | Nut Type | Hex Nut Hex Heavy Nut |
| Waher Type | Plain Flat Spring Washer | Bolt Standard | DIN931 933 912 976 3570/ASME B18.2.1 |
| Nut Standard | DIN934 ASME B18.2.2 | Washer Standard | DIN125 127/ASME B18.22.1 |
| DIN Size | M6-M100 | ASME Size | 1/4''~5'' |
| Brand Name | HT | Model Number | M6-M100 |
| Certification | PED SGS ISO TUV | Place of Origin | China |
| High Light | alloy steel fasteners ，threaded rod fasteners | ||
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 | IS BS 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 |
| 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 | – | – | – |
| 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 Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1978
Total Annual:
10000000-20000000
Employee Number:
50~100
Ecer Certification：
Active Member
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 fitti... 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 fitti...
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