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 |
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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 | ||
Alloy Steel ASTM A193 B7 Stud Bolt with ASTM A194 2H heavy hex nuts
1. ASTM A193 Grade B7 Bolts Specification
| Standards | Designation |
| ASTM | A193 B7 : Alloy Steel, AISI 4140/4142 quenched and tempered |
| Dimensions | ASME B18.2.1, B18.3 |
| Melt Origin | East Europe/South America/Korea/Japan |
| Product Origin | Made in India |
| Threads Configuration | ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Additional Certifications | PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| Mandatory Requirements | Free from Mercury & Radioactive Contamination |
| Additional Requirements | NACE MR0103/MR0175/ISO 15156 Compliance |
2. ANSI and/or ASME Standards (inch series)
| ASME B18.1.1 | Small Solid Rivets | ASME B18.8.1 | Clevis Pins and Cotter Pins |
| ASME B18.1.2 | Large Rivets | ASME B18.8.2 | Taper Pins, Dowel Pins, Straight Pins, Grooved Pins and Spring Pins |
| ASME B18.2.1 | Square and Hex Bolts and Screws | ASME B18.9 | Plow Bolts |
| ASME B18.2.2 | Square and Hex Nuts | ASME B18.10 | Track Bolts and Nuts |
| ASME B18.2.6 | Fasteners for use in Structural Applications | ASME B18.11 | Miniature Screws |
| ASME B18.3 | Socket Cap, Shoulder and Set Screws | ASME B18.13 | Screws and Washer Assemblies (Sems) |
| ASME B18.5 | Round Head Bolts | ASME B18.15 | Forged Eyebolts |
| ASME B18.6.2 | Slotted Head Cap Screws, Square Head Set Screws, and Slotted Headless Set Screws | ASME B18.17 | Wing Nuts, Thumb Screws and Wing Screws |
| ASME B18.6.3 | Machine Screws and Machine Screws Nuts | ASME B18.21.1 | Lock Washers |
| ASME B18.6.4 | Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws | ASME B18.22.1 | Plain Washers |
| ASME B18.7 | General Purpose Semi- Tubular Rivets, Full Tubular Rivets, Split Rivets and Rivet Caps | ASME B18.23.1 | Beveled Washers |
3. A193 gr b7 Chemical Composition
| Carbon | Manganese, max | Phosphorus, max | Sulfur, max | Silicon | Chromium | Molybdenum |
| 0.08-0.15 | 1.00 | 0.040 | 0.030 | 1.00 max | 11.5 – 13.5 | 0.15-0.25 |
4. B7 alloy steel bolts mechanical properties
| Grade | Diameter | Tensile Strength | Yield Strength | Elongation | Reduction | Hardness |
| Grade B7 | M64 and under | 860 | 720 | 16 | 50 | 321 HBW or 35 HRC |
| Grade B7 | Over M64 to M100 | 795 | 655 | 16 | 50 | 321 HBW or 35 HRC |
| Grade B7 | Over M100 to M180 | 690 | 515 | 18 | 50 | 321 HBW or 35 HRC |
5. A193 Grade
| B7 | Alloy steel, AISI 4140/4142 quenched and tempered |
| B8 | Class 1 Stainless steel, AISI 304, carbide solution treated. |
| B8M | Class 1 Stainless steel, AISI 316, carbide solution treated. |
| B8 | Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened |
| B8M | Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened |
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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