Basic Info.
Model NO.
SA193 GRB7
Application
Structural Steel Bar, Tool Steel Bar, Die Steel Bar
Alloy
Alloy
Special Use
Mold Steel, Free Cutting Steel, Cold Heading Steel, High Strength Bolts
Grade
AISI 4140 /A193 B7
Delivery Condition
Quenched and Tempered
Sizes
Metric Size or Pitch Size
MOQ
2-3tons Per Size (One Bundle )
Straightness
Max 1mm/M
Transport Package
Standard Export Packing
Specification
M12-M100
Trademark
Laiwu Xincheng
Origin
China
HS Code
72283090
Production Capacity
3000tons/Month
Product Description
Q&T STEEL ROUND BAR SA193 GRB7 SELF FINISH SURFACE
ASTM A193 is alloy steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
.
Material according to ASTM A193 B7 is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
1.Supplied size:
2.Delivery condition
Hot rolled+Q&T
Cold drawn +Q&T
Peeled+Q&T
3.Raw material
4.Property
5.Payment terms: T/T or L/ C
(1)30% paid by T/T and rest 70% by T/T upon the copy of B/B.
(2)100% irrevocable L/C at sight
6.Delivery time:within 7 days after your deposit or L/C.
7.Trade term: FOB CFR CIF
8.Mark: including steel material, heat No., pieces, weight, date and so on.
9.Quality control
1.Process for Steel round bar
Blast Furnance→ Molten Iron Pretreatment→Converter→LF→VD/RH→ContinuousCasting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→Finish Product
EAF→LF→VD/RH→ Continuous Casting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→ Finish Product
2.Grain Sizes:5-8
3.Surface condition: The surface of the bar shall be free cracks, scar and wrinkles at affect the use of the billets.
4.The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition
shall be within the limit stipulated in the contract
ASTM A193 is alloy steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
.
Material according to ASTM A193 B7 is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
1.Supplied size:
| Delivery condition | Diameter ranges |
| Hot rolled | M12-M310 |
| Hot rolled+Q&T(Quenched and tempered) | M12-M310. |
| Cold drawn +Q&T(Quenched and tempered) | M10-M100 |
| Peeled / Peeled+Q&T | M10-M100 |
| Forged/Forged+Heat treatment. | M250-M1000 |
2.Delivery condition
Hot rolled+Q&T
Cold drawn +Q&T
Peeled+Q&T
3.Raw material
| Element | B7 (AISI 4140) |
| Carbon | 0.38 - 0.48% |
| Manganese | 0.75 - 1.00% |
| Phosphorus, max | 0.04% |
| Sulfur, max | 0.04% |
| Silicon | 0.15 - 0.35% |
| Chromium | 0.80 - 1.10% |
| Nickel | |
| Molybdenum | 0.15 - 0.25% |
4.Property
| Grade | Sizes | Tensile ksi, min | Yield, ksi, min | Elong, % min | RA % min | HBW | HRC |
| A193 B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 | 321 max | 35 max |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 |
5.Payment terms: T/T or L/ C
(1)30% paid by T/T and rest 70% by T/T upon the copy of B/B.
(2)100% irrevocable L/C at sight
6.Delivery time:within 7 days after your deposit or L/C.
7.Trade term: FOB CFR CIF
8.Mark: including steel material, heat No., pieces, weight, date and so on.
9.Quality control
1.Process for Steel round bar
Blast Furnance→ Molten Iron Pretreatment→Converter→LF→VD/RH→ContinuousCasting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→Finish Product
EAF→LF→VD/RH→ Continuous Casting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→ Finish Product
2.Grain Sizes:5-8
3.Surface condition: The surface of the bar shall be free cracks, scar and wrinkles at affect the use of the billets.
4.The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition
shall be within the limit stipulated in the contract
