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amy
스테인리스 합금 강철 이음새가 없는 관 주요 물자 201 202 301 304 304L 309S 310S 316
| 원래 장소 | China |
|---|---|
| 브랜드 이름 | Best |
| 인증 | API/CE/ISO/PED |
| 모델 번호 | 40mm--360mm |
| 최소 주문 수량 | 1 Pcs |
| 가격 | 500 usd/ton |
| 포장 세부 사항 | 30 days normally, according to order quantity |
| 배달 시간 | 30 days normally, according to order quantity |
| 지불 조건 | L/C, D/A, D/A, D/P, T/T, Western Union, MoneyGram |
| 공급 능력 | 100000 Ton/Year |
무료 샘플과 쿠폰을 받으려면 연락하세요.
왓츠앱:0086 18588475571
웨이 채팅: 0086 18588475571
SKYPE: sales10@aixton.com
만약 당신이 어떠한 관심도 가지면, 우리가 24 시간 온라인 도움말을 제공합니다.
x제품 상세 정보
| 표준 | AISI, ASTM, DIN, EN, GB, JIS | 유형 | 라운드 |
|---|---|---|---|
| 납품 국가 | /냉각하는 단련 | 치수 | 40mm--360mm |
| 응용 프로그램 | /냉각하는 단련 | 길이 | 순서 (1.5m에 따라--6m) |
| 하이 라이트 | 합금 강철 이음새가 없는 관,원활한 합금강 관 |
||
제품 설명
Product Name : 440c stainless steel round bar Round Bar : Diameter 3-800mm
Product Information :
| Diameter | 40mm--360mm |
| Surface | According to order |
| Delivery state | Annealing/Quenching and tempering |
| Length | according to order(1.5m--6m) |
| Tolerance | according to order |
| Product Keywords | super duplex stainless steel plate price per kg,steel round bar,steel plate 3mm thick |
Chemical composition
|
material
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Mo
|
Cu
|
|
35CrMoA
|
0.34-0.39
|
0.17-0.37
|
0.40-0.70
|
0.015
max
|
0.010
max
|
0.80-1.10
|
0.30
max
|
0.15-0.25
|
0.25max
|
|
42CrMoA
|
0.39-0.45
|
0.17-0.37
|
0.50-0.80
|
0.015
max
|
0.010
max
|
0.90-1.20
|
0.20
max
|
0.20-0.25
|
0.25max
|
Equivalent Steel Grade
|
DIN
|
ASTM A29
|
JIS G4105
|
BS
|
GB
|
EN ISO 10250
|
|
1.7225
|
4140
|
SCM440
|
708M40/708A42/709M40
|
42CrMo
|
42CrMo4
|
Mechanical Properties
|
Grade
|
Tensile Strength
Mpa
|
Yield Strength
Mpa
|
Elongation
% |
Reduction
% |
-40℃Akv2/J
|
Hardness
|
|
10.9
|
≥1040
|
≥940
|
≥9
|
≥48
|
≥50
|
HRC32-39
|
|
8.8
|
≥830
|
≥660
|
≥12
|
≥52
|
≥70
|
HRC23-34
|
Surface Treatment Bar: Origin Black, Origin Annealing bright, Turned, Peeled, Grinded
Heat Treatment/ Anealing
1) Forging
Preheat the steel carefully, then raise the temperature to 1150-1200°C for forging. Do not forge below 850°C.
2)Annealing
Heat the AISI 4140 slowly to 800-850°C and allow enough time for the steel to be thoroughly heated. Cool slowly in the furnace to 480°C followed by air cooling.
3)Stress Relieving
When parts are heavily machined, ground or otherwise subject to cold work, stress relieving will be beneficial prior to hardening.
4)Hardening
AISI 4140 steel is usually supplied ready heat treated to 18-22HRC. If further heat treatment is required annealed AISI 4140 should be heated slowly to 840-875°C and after adequate soaking at this temperature quench in oil. Temper as soon as the tools reach room temperature.
5)Tempering
Heat the AISI 4140 carefully to a suitable temperature selected by reference to a tempering chart or table (usually between 550-700°C, soak at the temperature for 2 hours per 25mm of ruling section, then allow to cool in air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value.
Quality :
Our products will be from black round bar. We will order the raw material from first class steel making companies to guarantee the inner quality. You can also lock the raw material manufacturer for your order.
We will continually improves and expands the quantity and quality of our product which exactly meet customers need. We do whatever it takes to make our clients happy.
We will develop long-term commercial and technical partnerships with customers. And we are committed to continual quality improvement of all internal processes. The success of our quality program is affirmed by our strong customer retention rate.
Certification :
Achieving the ISO 9001:2008 Certification is just one example of our Products’ dedication to quality and continuous improvement. Each employee is responsible for understanding company expectations and adhering to the procedures of our Quality Management System.
Our Products ensures customers receive the material ordered with accurate supporting paperwork. Customers can count on proper documentation, on-time performance and effective follow-up.
Our company
Our story
Since beginning operation in 1996, We has been dedicated to providing more than just material supply, We has helped customers reduce costs and improve the bottom line. This approach to partnering with customers has made our Products a leader among Steel Round bar and one of the fastest growing companies in China.
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