shipbuilding quality bulb bar Grade A
1. Grade: A, B, AH36, DH32 DH36 Series
2. Classification society: CCS/ABS/LR/BV/DNV/KR/NK...
3. Length: 6m-12m
4. Size: 80*5mm--430*20mm
5. Packing: In bundle or we can make spacking as your required
6. Payment term: T/T, L/C
| 4340 Steel |
| Equivalent grades |
GB |
DIN |
AISI |
JIS |
|
| 40CrNiMoA |
1.6582 |
4340 |
SNCM8 |
|
| Chemical Composition |
C |
Si |
Mn |
Cr |
Mo |
Ni |
P |
S |
|
| 0.38-0.43 |
0.15-0.35 |
0.60-0.80 |
0.70-0.9 |
0.20-0.30 |
1.65-2.00 |
0.03max |
0.03max |
|
| Available size |
Round Bar |
Diameter |
Length |
| 70-600mm |
2000-6000mm |
| Flat Bar |
Thickness |
Width |
Length |
| 25-400mm |
200-800mm |
2000-6000mm |
| Surface condition |
Black surface/ Grinded/ Machined |
| Annealed hardness |
HBS≤248 |
| Characteristics |
special alloy steel, supplied in quenched and tempered conditions. High strength and tenacity, good hardenability. |
| Applications |
heavily loaded parts for mechanical engineering and motor construction. |
| Heat Treatment |
Forging |
Heat to 1150ºC Hold till uniform.Minimum forging temperature 850ºC.Cool slowly in ashes or sand etc. |
| Annealing |
Heat to 830ºC-850ºC.Cool infurnace. |
| Stress Relieving |
Annealed: Heat to 600ºC-650ºC.Hardened: Heat to 500ºC-550ºC.Cool in still air. |
| Hardening |
Heat to 830ºC-880ºC.Quench in oil or polymer. |
| Tempering |
Heat to 450ºC-660ºC cool in still air NB. Tempering within the range 250ºC-450ºC will result in temper brittleness and should be avoided. |
Company Profiled
Wugang Hongxing Metal Material Co., Ltd. Is located in Wuyang City and is specialized in manufacturing Steel Plates. With an experienced and professional team, we have exported our products to many countries and regions all over the world, especially Southeast Asia, the Middle East and Eastern Europe. Our products enjoy a good reputation among our customers. We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.
| ITEM |
DESCRIPTION |
| Payment Items |
L/C at sight or T/T. |
| Deliver Conditions |
average 30 days |
| Supply Ability |
10,00MT per month |
| Certificate |
ISO9001 |
1. We can supply you with reasonable
and competitive price and good quality
products. |
2. If you are interested in any
of products,please contact us for more information.
|
Wugang Chang Yu Long Industry and Trade Co., Ltd. was established in 2002,the Guangzhou LongShengHing Trading Co.,Ltd and Hongkong Chang Yu Long Trade Co.,Limited was establish in 2008.(The founder Mr.yan, the charge of the production department of the Hesteel Group Co.,Ltd.Hesteel is the world's second largest and China largest iron&steel maker and integrated service provider measured by the production capacity.he has been in steel industry for more than thirty years).
The Wugang Chang Yu Long Industry and Trade Co., Ltd. develop high-end product at first,like military steel and heavy plate,and gradually develop a more wide range of product.now the product contain steel plate,hot rolled steel coils,colded rolled steel coil,PPGI,galvanized steel coil,round bar,steel rebar,wire rod,etc.
Our product reach the specification of ASTM,JIS,BS,DIN and othe international standard and our shipbuilding plate get certificate of nine country classification society.
If you have any needs of steel products, can contact me, welcome to inquiry.
We're specialized in supplying steel products for more than 30 years, products list as below,
steel plate,
steel coil,
steel wire,
electrodes welding rod,
galvanized steel,
galvalume steel,
PPGI, PPGL,
silicon steel such as CRNGO & CRGO,
Tinplate & TFS
Stainless steel
Long steel such as H beam, I beam, steel channel, angle steel, hollow section, casing /petroleum pipe, steel bar, rebar, flat-bulb steel, rail steel and sheet piles, etc.
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