NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 2000tons per month |
| Delivery Time | 20-30days |
| Packaging Details | bundles packing,wooden box packing |
| Standard | ASTM A320 A193 |
| Material | Stainless Steel,alloy steel,carbon steel |
| Size | can be customized,M3-M100,Cusomized,M3-M48 |
| Finish | Plain,black,Zinc plated,dacromet |
| Grade | SAE1010 SAE1020 SAE1045 |
| Surface treatment | Nickel,Dacromet,Nickel-plated,Chrome |
| Class | ASTM A 320 L7 Gr.B7, Gr.B7M, B16,Gr.B8, Gr.B8M |
| Brand Name | NEW-ERA |
| Model Number | M3-M120 |
| Certification | ISO9001/TS16949 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 2000tons per month |
| Delivery Time | 20-30days | Packaging Details | bundles packing,wooden box packing |
| Standard | ASTM A320 A193 | Material | Stainless Steel,alloy steel,carbon steel |
| Size | can be customized,M3-M100,Cusomized,M3-M48 | Finish | Plain,black,Zinc plated,dacromet |
| Grade | SAE1010 SAE1020 SAE1045 | Surface treatment | Nickel,Dacromet,Nickel-plated,Chrome |
| Class | ASTM A 320 L7 Gr.B7, Gr.B7M, B16,Gr.B8, Gr.B8M | Brand Name | NEW-ERA |
| Model Number | M3-M120 | Certification | ISO9001/TS16949 |
| Place of Origin | CHINA | ||
| High Light | threaded metal rod ，high strength threaded rod | ||
SAE1010 SAE1020 SAE1045 4130 4140 Plain Black Galvanized threaded steel Rod , znic plated threaded rod
ASTM A193 Grade B7M bolts and studs are identical in chemistry to Grade B7 (quenched and tempered medium carbon alloy steel), but have lower strength requirements and require 100% hardness testing of all fasteners manufactured in the lot. Grade B7M bolts resist chloride, sulfide, and hydrogen stress corrosion cracking (SCC) and are frequently used in sour gas service.
Our main grades for threaded ros:
ASTM A193: B7, B7M, B16, B8 class 1, B8 class 2, B8M class 1, B8M class 2, B8T etc.
ASTM A320: L7, L7M, L43, B8 class 1, B8 class 2, B8M class 1, B8M class 2, B8T etc.
Our supplied sizes:1/2"-4"
Surface finish: Self black, Blacken,Zinc-coated, GI and so on
Property in A193 B7 and B7M
| Grade | Sizes | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min | HBW | HRC |
| A193 B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 | 321 max | 35 max |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |||
| 4-1/8 - 6 | 100 | 75 | 18 | 50 |
| Grade | Diameter | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min | HBW | HRC |
| B7M | Up to 4 | 100 | 80 | 18 | 50 | 235 max | - |
| Over 4 - 7 | 100 | 75 | 18 | 50 |
Steel materials 4140 chemical composition
| Element | B7 /B7M (AISI 4140) |
| Carbon | 0.38 - 0.48% |
| Manganese | 0.75 - 1.00% |
| Phosphorus, max | 0.04% |
| Sulfur, max | 0.04% |
| Silicon | 0.15 - 0.35% |
| Chromium | 0.80 - 1.10% |
| Nickel | |
| Molybdenum | 0.15 - 0.25% |
Company Details
Business Type:
Manufacturer
Year Established:
1988
Total Annual:
100000000-15000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int... Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int...
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