Yuhong Group Co.,Ltd
| Payment Terms | T/T, L/C |
| Supply Ability | 100 tons per month |
| Delivery Time | Depends on quantity |
| Packaging Details | PLYWOOD CASE,BUNDLE,WOVEN BAG |
| Specification | BS6323 PART 5 ERW 1, ERW 2, ERW 3, ERW 4, ERW 5 |
| Grade | 12X18H12T |
| O.D | 3/4" (19.05), 1"(25.4) , 1-1/4"(31.75), 1-1/2"(38.1), 2" (50.8), 2-1/2"(63.5) , 3" (76.2) |
| Type | 1KM , GKM , NKM , NZF |
| Schedule | BWG10, 12, 14, 16, 18, 20, 22, 25 |
| Material | Carbon Steel |
| Brand Name | YUHONG |
| Model Number | GOST9941-81 |
| Certification | ISO9001-2008, API 5L, API 5CT |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 100 tons per month |
| Delivery Time | Depends on quantity | Packaging Details | PLYWOOD CASE,BUNDLE,WOVEN BAG |
| Specification | BS6323 PART 5 ERW 1, ERW 2, ERW 3, ERW 4, ERW 5 | Grade | 12X18H12T |
| O.D | 3/4" (19.05), 1"(25.4) , 1-1/4"(31.75), 1-1/2"(38.1), 2" (50.8), 2-1/2"(63.5) , 3" (76.2) | Type | 1KM , GKM , NKM , NZF |
| Schedule | BWG10, 12, 14, 16, 18, 20, 22, 25 | Material | Carbon Steel |
| Brand Name | YUHONG | Model Number | GOST9941-81 |
| Certification | ISO9001-2008, API 5L, API 5CT | Place of Origin | China |
| High Light | Performance in Boiler Tube ，Low Carbon Steel Boiler Tube ，ERW1 Boiler Tube | ||
BS 6323-5 ERW1 KM Boiler Tube
BS 6323-5 ERW1 KM Boiler Tube is a British Standard specification for electric resistance welded (ERW) carbon steel tubes used in boiler applications. The ERW1 grade indicates that the tube is manufactured using a low carbon steel material, while the KM designation signifies that the tube is suitable for high temperature and pressure boiler systems. This specification sets out the requirements for the dimensions, mechanical properties, and testing of the boiler tube to ensure its e and reliable performance in industrial boiler applications.
Steel Grade and Chemical Compositions:
| Desig nation | Chemical Compositions( ladle analysis) | Mechanical properties | |||||||||||||
| C | Si | Mn | P | S | KM (as welded) | GMK and GZF (annealed | NKM and NZF(normalzied) | ||||||||
| max. | max. | max. | max. | max. | Re min. | Rm min. | A min | A min. | Re min. | Rm min. | A min. | Re min. | Rm min. | A min. | |
| D/a≤ 20 | D/a> 20 | ||||||||||||||
| % | % | % | % | % | N/m m2 | N/m m2 | % | % | N/m m2 | N/m m2 | % | N/m m2 | N/m m2 | % | |
| ERW 1 | 0.13 | __ | 0.60 | 0.050 | 0.050 | 200 | 300 | 10 | 20 | 150 | 270 | 27 | 155 | 280 | 25 |
| ERW 2 | 0.16 | __ | 0.70 | 0.050 | 0.050 | 250 | 340 | 8 | 15 | 195 | 300 | 27 | 195 | 320 | 25 |
| ERW 3 | 0.20 | 0.35 | 0.90 | 0.050 | 0.050 | 300 | 400 | 7 | 12 | 215 | 340 | 26 | 215 | 360 | 24 |
| ERW 4 | 0.25 | 0.35 | 1.20 | 0.050 | 0.050 | 350 | 450 | 6 | 10 | 235 | 400 | 24 | 235 | 410 | 22 |
| ERW 5 | 0.23 | 0.50 | 1.50 | 0.050 | 0.050 | 420 | 420 | 6 | 8 | 340 | __ | __ | 340 | 490 | 20 |
| Diameter | Tolerance | |||
| 1 | 2 | 3 | ||
| over | Up to and including | KM condition D/a | GKM, GZF,NKM, NZF condition 20 | |
| ≤40 GKM,GZF, | ||||
| NKM, NZF condition≤20 | ||||
| mm | mm | mm | mm | mm |
| 20 | ±0.12 | ±0.18 | ±0.24 | |
| 20 | 30 | ±0.15 | ±0.22 | ±0.30 |
| 30 | 50 | ±0.20 | ±0.30 | ±0.40 |
| 50 | 70 | ±0.25 | ±0.37 | ±0.50 |
| 70 | 90 | ±0.30 | ±0.45 | ±0.60 |
| 90 | 110 | ±0.35 | ±0.52 | ±0.70 |
| 110 | 130 | ±0.45 | ±0.68 | ±0.90 |
| 130 | 150 | ±0.55 | ±0.82 | ±1.10 |
| 150 | 170 | ±0.65 | ±0.97 | ±1.30 |
| 170 | ±0.75% of outside | ±1% of outside diameter | ±1.5% of outside diameter | |
| diameter | ||||
| Tube Sizes for Heat Exchangers & Condensers & Boiler | |||||||||||
| Outside Diameter | BWG | ||||||||||
| 25 | 22 | 20 | 18 | 16 | 14 | 12 | 10 | ||||
| Wall Thickness mm | |||||||||||
| 0.508 | 0.71 | 0.89 | 1.24 | 1.65 | 2.11 | 2.77 | 3.40 | ||||
| mm | inch | Weight kg/m | |||||||||
| 6.35 | 1/4 | 0.081 | 0.109 | 0.133 | 0.174 | 0.212 | |||||
| 9.53 | 3/8 | 0.126 | 0.157 | 0.193 | 0.257 | 0.356 | 0.429 | ||||
| 12.7 | 1/2 | 0.214 | 0.263 | 0.356 | 0.457 | 0.612 | 0.754 | ||||
| 15.88 | 5/8 | 0.271 | 0.334 | 0.455 | 0.588 | 0.796 | 0.995 | ||||
| 19.05 | 3/4 | 0.327 | 0.405 | 0.553 | 0.729 | 0.895 | 1.236 | ||||
| 25.4 | 1 | 0.44 | 0.546 | 0.75 | 0.981 | 1.234 | 1.574 | 2.05 | |||
| 31.75 | 1 1/4 | 0.554 | 0.688 | 0.947 | 1.244 | 1.574 | 2.014 | 2.641 | |||
| 38.1 | 1 1/2 | 0.667 | 0.832 | 1.144 | 1.514 | 1.904 | 2.454 | 3.233 | |||
| 44.5 | 1 3/4 | 1.342 | 1.774 | 2.244 | 2.894 | 3.5 | |||||
| 50.8 | 2 | 1.549 | 2.034 | 2.574 | 3.334 | 4.03 | |||||
| 63.5 | 2 1/2 | 1.949 | 2.554 | 3.244 | 4.214 | 5.13 | |||||
| 76.2 | 3 | 2.345 | 3.084 | 3.914 | 5.094 | 6.19 | |||||
| 88.9 | 3 1/2 | 2.729 | 3.609 | 4.584 | 5.974 | 7.27 | |||||
| 101.6 | 4 | 4.134 | 5.254 | 6.854 | 8.35 | ||||||
| 114.3 | 4 1/2 | 4.654 | 5.924 | 7.734 | 9.43 | ||||||
| Form of Tube: Straight & U-bend & Finned & Coiled | |||||||||||
| Stainless Steel Tube: A/SA213, A/SA249, A/SA268, A/SA269, A/SA789, EN10216-5, A/SA688, B/SB163, JIS-G3463, GOST9941-81. | |||||||||||
| Carbon &Alloy Steel Tube: A/SA178, A/SA179, A/SA192,A/SA209, A/SA210, A/SA213, A.SA214, SA423 | |||||||||||
Application
Off-Shore Oil Drilling Companies
Power Generation
Petrochemicals
Gas Processing
Specialty Chemicals
Pharmaceuticals
Pharmaceutical Equipment
Chemical Equipment
Sea Water Equipment
Heat Exchangers
Condensers
Pulp and Paper Industry
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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