NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
NEW-ERA STEEL TUBE HOLDING NINGBO PIPEWAY TRADE CO.,LTD
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BS6323-5 ERW1 ERW2 ERW3 ERW4 ERW5 Electric Resistance Welded Steel Tubes
Standard: BS6323-5 Seamless and Welded steel tubes for Automobile,Mechanical and General Engineering Purposes
Part 5: Specific requirements for electric resistance welded (including induction) steel tubes
Steel Grade: ERW1 ERW2 ERW3 ERW4 ERW5
Applications: for Auto Industry / for Machinery Use/Mechanical and General Engineering Purposes
Size range: O.D.:6-350mm W.T.:1-30mm L:max12000mm
| Diameter | Tolerance | |||
| 1 | 2 | 3 | ||
| over | Up to and including | KM condition D/a | GKM, GZF,NKM, NZF condition 20<D/a≤40 | |
| ≤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 | ||||
Note: Special steel grade is also available, according to customer request.
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 |
FAQ:
1. Can you provide a sample to check the quality?
We can provide free sample with same or similar sizes for you to check tube quality.
You need to in charge of Express costs.
2. How about your production capacity?
3000 tons/Month.
3. What are your terms of payment?
30%TT in advance, Balance to be paid before shipment.
4. Where is your factory?
Jiaxing city, 2 hours away from Shanghai.
5. How can I get the quotation A.S.A.P?
Please send us an inquiry with full details as following,quotation will sent to you A.S.A.P:
1). Tube Standard
2). Steel Grade
3). Tube Size and Size Tolerance
4). Tube length
5). Quantity
6). If any special requirements
6. How about the minimum order quantity?
Normally for one size above 1 ton.
Welcome to contact us! Thanks.