Complaint
Alloy Seamless Steel Tube is a type of seamless steel pipe. Alloy pipes are divided into structural seamless pipes and high-pressure heat-resistant alloy pipes. alloy pipe contains more Cr in chemical composition, and has high temperature resistance, low temperature resistance and corrosion resistance.
4130 Alloy Chromoly Steel Pipe
Chemical Composition(%) | Mechanical Property | |||||||||
C | Si | Mn | S | P | Cr | Ni | Cu | Mo | Yield Strength | Tensile Strength |
( σs ) | ( σb ) | |||||||||
0.28~0.33 | 0.15~0.30 | 0.40~0.60 | ≤0.04 | ≤0.035 | ≤0.15 | 0.80~1.10 | / | 0.15~0.25 | ≥785(80) | ≥930(95) |
(MPa) | ||||||||||
End Shape | Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's requirements | |||||||||
Surface | Oiled, Galvanized, Phosphate etc | |||||||||
Treatment | ||||||||||
Technique | Cold drawn | |||||||||
Application | 1. Automotive and mechanical pipes | |||||||||
2. Petroleum cracking pipes | ||||||||||
3. High Pressure Boiler Pipe | ||||||||||
4. Low and middle pressure fluid transportation pipeline | ||||||||||
5. Chemical fertilizer equipment pipes | ||||||||||
6. Heat exchanger pipes | ||||||||||
Delivery | 1. BK (+C) | No heat treatment after last cold forming process. | ||||||||
Conditions | 2. BKW (+LC) | After last heat treatment there is a light finishing pass (cold drawing) | ||||||||
3. BKS (+SR) | After the final cold forming process the tubes are stress relieve annealed. | |||||||||
4. GBK (+A) | After the final cold forming process the tubes are annealed in a controlled atmosphere. | |||||||||
5. NBK (+N) | After the final cold forming process the tubes are annealed above the upper transformation point in acontrolled atmosphere. | |||||||||
Package | 1. Bundle Packing. | |||||||||
2. Plain end or vanished as per customer's request. | ||||||||||
3. Wrapped in waterproof paper. | ||||||||||
4. Sackcloth with several steel strips. | ||||||||||
5.as per customer's requirements | ||||||||||
Alloy Seamless Steel Tube is mainly used in engineering and large-scale equipment to transport fluid pipelines, industrial boilers and domestic boilers to transport low and medium pressure fluids, high temperature and high pressure fluid headers and pipelines in power stations and nuclear power plants; used in ship boilers And superheater with I, II pressure tube, etc. High-temperature and high-pressure fluid pipelines on chemical fertilizer equipment; boilers, heat exchangers and fluid pipelines used in petroleum smelters. Used to make various gas and hydraulic cylinders, etc.
Tests we apply to the tubes:
1. Chemical composition analysis
2. Mechanical properties (tensile strength, yield strength, elongation, hardness)
3. Technological test (flattening test, flaring test, bending test, hydraulic pressure test)
4. Surface quality detection
5. Eddy-current examination
6. Visual test
Applications:
1. Low and middle pressure fluid transportation pipeline
2. Casing pipe
3. Low and medium pressure boiler seamless steel pipe
4. High pressure boiler seamless steel pipe
5. Carbon seamless steel pipe for ship
6. Seamless steel pipe used in high pressure chemical fertilizer equipment
7. Petroleum and natural gas industry
8. Steel pipe for heat exchanger
9. Used for diesel engine
10. Chemical industry, building industry, environment industry and more
Delivery condition: hot rolled, annealed, normalized, quenched and tempered
Packaging:
1. Bundle packing
2. Beveled end or plain end or varnished as per buyer's required
3. Marking: as per customer's requests
4. Painting varnish coating on the pipe
5. Plastic caps at ends
Delivery lead time: with 15-30 days after full payment received
Our services: third party inspection accepted such as SGS, BV
Lead time 10-15 days | 80% of output for export
Shipping Information
| FOB Port | Tianjin | ||||
|---|---|---|---|---|---|
| Weight per Unit | 1500.0 Kilograms | ||||
| HTS Code | 7304.41.90 00 | ||||
| Export Carton Dimensions L/W/H | 11.8 x 1.0 x 0.8 Meters | ||||
| Lead Time | 15-30 days | ||||
|---|---|---|---|---|---|
| Dimensions per Unit | 11.8 x 1.0 x 0.8 Meters | ||||
| Units per Export Carton | 25.0 | ||||
| Export Carton Weight | 1500.0 Kilograms | ||||
