NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
| Supply Ability | 2000tons per month |
| Delivery Time | 45 days |
| Packaging Details | Anti-rusty oil protected,Bundles packing with plastic bags wrapped |
| Steel Grade | 4130+SR/SAE1541/4130+QT/XJY850/XJY750 |
| Size | 55.50x46.5 69.85x60.33 88.90x77.80 114.3x101.60 |
| Threaded | Ends without thread |
| Surface | Black phosphated |
| Materials | Seamless cold drawn steel pipes |
| Casing | AW, BW, NW, HW, HWT, PW |
| Application | Geological drilling |
| Brand Name | New-Era |
| Model Number | BQ,NQ,HQ,PQ |
| Certification | ISO9001/TS16949 |
| Place of Origin | China |
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Product Specification
| Supply Ability | 2000tons per month | Delivery Time | 45 days |
| Packaging Details | Anti-rusty oil protected,Bundles packing with plastic bags wrapped | Steel Grade | 4130+SR/SAE1541/4130+QT/XJY850/XJY750 |
| Size | 55.50x46.5 69.85x60.33 88.90x77.80 114.3x101.60 | Threaded | Ends without thread |
| Surface | Black phosphated | Materials | Seamless cold drawn steel pipes |
| Casing | AW, BW, NW, HW, HWT, PW | Application | Geological drilling |
| Brand Name | New-Era | Model Number | BQ,NQ,HQ,PQ |
| Certification | ISO9001/TS16949 | Place of Origin | China |
| High Light | steel drill pipe ，circular steel tube | ||
Seamless cold drawn alloy steel pipes for wire-line drill rods sizes AQ BQ NQ HQ PQ SQ by SAE/AISI4130 steel tubes
Technical Parameters:
| No. | Std.Sizes | Lengths (m) | OD*WT (mm) | Steel Grade | Depth(m) |
| 1 | AQ(AWL) | 1.5 | 44.5*4.8 | 4130+QT/SR | 300 |
| 2 | AQ(AWL) | 3 | 44.5*4.8 | 4130+QT/SR | 300 |
| 3 | BQ (BWL) | 1.5 | 55.6*4.8 | 4130+QT/SR | 600 |
| 4 | BQ (BWL) | 3 | 55.6*4.8 | 4130+QT/SR | 1200 |
| 5 | NQ (NWL) | 1.5 | 69.9*5.0 | 4130+QT/SR | 600 |
| 6 | NQ (NWL) | 3 | 69.9*5.0 | 4130+QT/SR | 1200 |
| 7 | HQ (HWL) | 1.5 | 88.9*5.6 | 4130+QT/SR | 600 |
| 8 | HQ (HWL) | 3 | 89.9*5.6 | 4130+QT/SR | 1200 |
| 9 | PQ (PWL) | 1.5 | 114.3*6.3 | 4130+QT/SR | 600 |
| 10 | PQ (PWL) | 3 | 114.3*6.3 | 4130+QT/SR | 1200 |
| 11 | SQ | 1.5 | 139.7*7.1 | 4130+QT/SR | 300 |
| 12 | SQ | 3 | 139.7*7.1 | 4130+QT/SR | 600 |
Description:
COLD DRAWN SEAMLESS ALLOY STEEL TUBES
STEEL GRADE: SAE/AISI4130
SPECIFICATIONS: ASTM A519 WITH FOLLOWING REQUIREMENTS.
MECHANICAL PROPERTIES
| Tensile Min | 725MPa |
| Yield Min | 620MPa |
| Elongation (50.8mmG.L) | Min 15% |
| Hardness | 230-280 HB |
| Condition | Stress relieved. |
| Straightness better than: | 1 in 2000 MAX (1MM DEVIATION IN 2000MM) |
| Eccentricity (Max) | 5% |
| Grain size | ≥ 9 according to ASTM E112 |
| Residual Hoop stress | <80Mpa according to ASTM E1928-99 |
DIMENSION AND TOLERANCES (IN MM)
| SR.NO. | OUTSIDE DIA | TOLERANCE | INSIDE DIA | TOLERANCE | WT | LENGTH (+5/-0) |
| 1 | 55.56 | +0.18/-0 | 46.20 | +0/-0.18 | 4.68 | 3070 |
| 2 | 69.85 | +0.20/-0 | 60.32 | +0/-0.20 | 4.765 | 3070 |
| 3 | 88.90 | +0.25/-0 | 78.00 | +0/-0.25 | 5.45 | 3070 |
NON-DESTRUCTIVE TEST
Eddy Current Examination according to ASTM E309shall be applied on all tubes using External Longitudinal notch with depth of no more than 7.5% of wall thickness (maximum notch depth 0.80mm and minimum notch depth 0.30mm) , 0.30mm maximum width and 25mm maximum length, made from the same chemistry and size of tubing.
SURFACE CONDITION
The tubes must have smooth surface
Tag: steel drill rod,rock drill rods,wireline drill rods,casing drill pipes,seamless steel pipes,rock drill pipes,4130+SR
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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