ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
Zhangjiagang Hua Dong Energy Technology Co., Ltd.
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Hot Rolled/Cold Drawn Seamless Austenitic and Duplex Stainless Steel Tube/Pipe
QUALITY CONTROL from the raw material to finish products
We can provide round bar/ billets MTC, and All Related Test Records during the production to the final products! Ensure all products are newly produced as per the contract.
Up to 8,000 tons per month production capacity ensures FAST DELIVERY
Four piercing machines, 20 sets of cold drawing bench, TWO 150mtr natural gas heat treatment furnaces, 12 tanks for Pickling / Washing / Phosphating, TWO Eddy Current and ONE Ultrasonic for NDT, Sophisticated Chemical and Mechanical test facilities, etc.
| C | Mn | P | S | Si | Tensile Strength | Yeild point | Elongation |
| 0.06-0.18 | 0.27-0.63 | 0.035Max | 0.035Max | 0.25Max | min ksi[Mpa] 47[325] | min ksi[Mpa] 26[180] | ≥35% |
Products Description
| Type | Seamless/Welded |
| Size | Outside diameter: 10mm--630mm(seamless); 10mm-2500mm(welded) Wall thickness: 0.5mm--50mm |
| Standard | ASTM A312,ASTM A269, ASTM213,EN10216-5 ASTM A789 (ASME SA789), ASTM A790 (ASME SA790) etc. |
| Grade | TP304, 304L, 304H, TP316, 316L, 316H, TP321/321H, TP347/347H, S31803, S32205, S31500, S32304, S32750, S32760 etc. |
| Surface | Pickling,solid solution, polished or as customer's requirement |
| Packing | Bundle, plastic bag, woven bag, wooden case |
| Delivery | stock, 5-30days to port |
| Payment | T/T, D/P, L/C at sight, Usance L/C etc. |
ASTM A210/A210M/ASME SA-210/SA-210M
ASTM A 210 Cold Drawn Seamless Medium-Carbon Steel Boiler and Superheater Tubes
| Chemical Composition % | ||||||||
| Garde | C | Si | Mn | P | S | Cr | Ni | Cu |
| A-1 | ≤0.27 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | / | / | / |
| C | ≤0.35 | ≥0.10 | ≤0.93 | ≤0.035 | ≤0.035 | / | / | / |
ASTM A 210 Cold Drawn Seamless Medium-Carbon Steel Boiler and Superheater Tubes Mechanical Property
| Mechanical Properties | |||
| Grade | Yield Point (Mpa) | Tensile Point (Mpa) | Elongation (%) |
| A-1 | ≥255 | ≥415 | ≥30 |
| C | ≥275 | ≥485 | ≥30
|
Steel grade SA192 Chemical Composition & Mechanical properties
Hardness
| Brinell Hardness | Rockwell Hardness Number |
| WT≥0.200in(5.1mm) | WT<0.200in(5.1mm) |
| 137HRB | 77HRB |
QUALITY CONTROL
1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.
